Source Code

This is a reconstructed version of Luminary 130, the initial AGC program released in November 1969 for the Apollo 13 LM. Three more releases followed before the flown revision was finally manufactured in February 1970.

This reconstruction was created from a previous transcription of the original listing of Luminary 131, combined with Luminary memo #129 which describes the small difference between the Luminary 130 and 131. The reconstructed source code was verified by matching memory-bank checksums to those listed for Luminary 130 in drawing 2021152G.

In this source code, program comments from the original (Luminary 131) code are prefixed with '#', while those added later by the Virtual AGC project are prefixed with '##'.

028206,000002:                                                                                                  ## Copyright:   Public domain.
028207,000003:                                                                                                  ## Filename:    P34-P35,_P74-P75.agc
028208,000004:                                                                                                  ## Purpose:     A section of the reconstructed source code for Luminary 130.
028209,000005:                                                                                                  ##              This was the original program released for the Apollo 13 LM,
028210,000006:                                                                                                  ##              although several more revisions would follow. It has been
028211,000007:                                                                                                  ##              reconstructed from a listing of Luminary 131, from which it
028212,000008:                                                                                                  ##              differs on only two lines in P70-P71. The difference is
028213,000009:                                                                                                  ##              described in detail in Luminary memo #129, which was used
028214,000010:                                                                                                  ##              to perform the reconstruction. This file is intended to be a
028215,000011:                                                                                                  ##              faithful reconstruction, except that the code format has been
028216,000012:                                                                                                  ##              changed to conform to the requirements of the yaYUL assembler
028217,000013:                                                                                                  ##              rather than the original YUL assembler.
028218,000014:                                                                                                  ## Reference:   pp. 660-704
028219,000015:                                                                                                  ## Contact:     Ron Burkey <info@sandroid.org>.
028220,000016:                                                                                                  ## Website:     www.ibiblio.org/apollo
028221,000017:                                                                                                  ## Mod history: 05/22/03 RSB.   Began transcribing.
028222,000018:                                                                                                  ##              2010-10-25 JL   Added missing # in comments.
028223,000019:                                                                                                  ##              2011-05-07 JL   Removed workaround.
028224,000020:                                                                                                  ##              2017-01-06 RSB  Page numbers now agree with those on the
028225,000021:                                                                                                  ##                              original harcopy, as opposed to the PDF page
028226,000022:                                                                                                  ##                              numbers in 1701.pdf.
028227,000023:                                                                                                  ##              2017-01-28 RSB  Back-ported some comment fixes I noticed while
028228,000024:                                                                                                  ##                              proofing Luminary 69.
028229,000025:                                                                                                  ##              2017-01-28 RSB  Back-ported some comment fixes I noticed while
028230,000026:                                                                                                  ##                              proofing Artemis 72.
028231,000027:                                                                                                  ##              2017-02-24 RSB  Proofed comment text using octopus/ProoferComments.
028232,000028:                                                                                                  ##              2017-02-28 RSB  Fixed lingering typos.
028233,000029:                                                                                                  ##              2017-03-09 RSB  Fixed VNP00H to VNPOOH.
028234,000030:                                                                                                  ##              2017-03-09 RSB  Comment-text fixes noted in proofing Luminary 116. 
028235,000031:                                                                                                  ##              2017-03-16 RSB  Comment-text fixes identified in 5-way
028236,000032:                                                                                                  ##                              side-by-side diff of Luminary 69/99/116/131/210.
028237,000033:                                                                                                  ##              2018-09-04 MAS  Copied from Luminary 131 for Luminary 130.
028238,000034: 

Page 660

028240,000036:                                                                                                  #  TRANSFER PHASE INITIATION (TPI) PROGRAMS (P34 AND P74)
028241,000037:                                                                                                  #  MOD NO -1                     LOG SECTION - P32-P35, P72-P75
028242,000038:                                                                                                  #  MOD BY WHITE.P                DATE 1 JUNE 67
028243,000039: 
028244,000040:                                                                                                  #  PURPOSE
028245,000041:                                                                                                  #        (1)     TO CALCULATE THE REQUIRED DELTA V AND OTHER INITIAL CONDITIONS
028246,000042:                                                                                                  #                REQUIRED BY THE ACTIVE VEHICLE FOR EXECUTION OF THE TRANSFER
028247,000043:                                                                                                  #                PHASE INITIATION (TPI) MANEUVER, GIVEN -
028248,000044:                                                                                                  #                (A)     TIME OF IGNITION TIG (TPI) OR THE ELEVATION ANGLE (E) OF
028249,000045:                                                                                                  #                        THE ACTIVE/PASSIVE VEHICLE LOS AT TIG (TPI).
028250,000046:                                                                                                  #                (B)     CENTRAL ANGLE OF TRANSFER (CENTANG) FROM TIG (TPI) TO
028251,000047:                                                                                                  #                        INTERCEPT TIME (TIG (TPF)).
028252,000048:                                                                                                  #        (2)     TO CALCULATE TIG (TPI) GIVEN E OR E GIVEN TIG (TPI).
028253,000049:                                                                                                  #        (3)     TO CALCULATE THESE PARAMETERS BASED UPON MANEUVER DATA
028254,000050:                                                                                                  #                APPROVED AND KEYED INTO THE DSKY BY THE ASTRONAUT.
028255,000051:                                                                                                  #        (4)     TO DISPLAY TO THE ASTRONAUT AND THE GROUND CERTAIN DEPENDENT
028256,000052:                                                                                                  #                VARIABLES ASSOCIATED WITH THE MANEUVER FOR APPROVAL BY THE
028257,000053:                                                                                                  #                ASTRONAUT/GROUND.
028258,000054:                                                                                                  #        (5)     TO STORE THE TPI TARGET PARAMETERS FOR USE BY THE DESIRED
028259,000055:                                                                                                  #                THRUSTING PROGRAM.
028260,000056: 
028261,000057:                                                                                                  #  ASSUMPTIONS
028262,000058:                                                                                                  #        (1)     LM ONLY - THIS PROGRAM IS BASED UPON PREVIOUS COMPLETION OF
028263,000059:                                                                                                  #                THE CONSTANT DELTA ALTITUDE (CDH) PROGRAM (P33/P73).
028264,000060:                                                                                                  #                THEREFORE -
028265,000061:                                                                                                  #                (A)     AT A SELECTED TPI TIME (NOW IN STORAGE) THE LINE OF SIGHT
028266,000062:                                                                                                  #                        BETWEEN THE ACTIVE AND PASSIVE VEHICLES WAS SELECTED TO BE
028267,000063:                                                                                                  #                        A PRESCRIBED ANGLE (E) (NOW IN STORAGE) FROM THE
028268,000064:                                                                                                  #                        HORIZONTAL PLANE DEFINED BY THE ACTIVE VEHICLE POSITION.
028269,000065:                                                                                                  #                (B)     THE TIME BETWEEN CDH IGNITION AND TPI IGNITION WAS
028270,000066:                                                                                                  #                        COMPUTED TO BE GREATER THAN 10 MINUTES.
028271,000067:                                                                                                  #                (C)     THE VARIATION OF THE ALTITUDE DIFFERENCE BETWEEN THE
028272,000068:                                                                                                  #                        ORBITS WAS MINIMIZED.
028273,000069:                                                                                                  #                (D)     THE PERICENTER ALTITUDES OF ORBITS FOLLOWING CSI AND
028274,000070:                                                                                                  #                        CDH WERE COMPUTED TO BE GREATER THAN 35,000 FT FOR LUNAR

Page 661

028276,000072:                                                                                                  #                        ORBIT OR 85 NM FOR EARTH ORBIT.
028277,000073:                                                                                                  #                (E)     THE CSI AND CDH MANEUVERS WERE ASSUMED TO BE PARALLEL TO
028278,000074:                                                                                                  #                        THE PLANE OF THE PASSIVE VEHICLE ORBIT.  HOWEVER, CREW
028279,000075:                                                                                                  #                        MODIFICATION OF DELTA V (LV) COMPONENTS MAY HAVE RESULTED
028280,000076:                                                                                                  #                        IN AN OUT-OF-PLANE MANEUVER.
028281,000077:                                                                                                  #        (2)     STATE VECTOR UPDATED BY P27 ARE DISALLOWED DURING AUTOMATIC
028282,000078:                                                                                                  #                STATE VECTOR UPDATING INITIATED BY P20 (SEE ASSUMPTION (4)).
028283,000079:                                                                                                  #        (3)     THIS PROGRAM MUST BE DONE OVER A TRACKING STATION FOR REAL
028284,000080:                                                                                                  #                TIME GROUND PARTICIPATION IN DATA INPUT AND OUTPUT.  COMPUTED
028285,000081:                                                                                                  #                VARIABLES MAY BE STORED FOR LATER VERIFICATION BY THE GROUND.
028286,000082:                                                                                                  #                THESE STORAGE CAPABILITIES ARE LIMITED ONLY TO THE PARAMETERS
028287,000083:                                                                                                  #                FOR ONE THRUSTING MANEUVER AT A TIME EXCEPT FOR CONCENTRIC
028288,000084:                                                                                                  #                FLIGHT PLAN MANEUVER SEQUENCES.
028289,000085:                                                                                                  #        (4)     THE RENDEZVOUS RADAR MAY OR MAY NOT BE USED TO UPDATE THE LM
028290,000086:                                                                                                  #                OR CSM STATE VECTORS FOR THIS PROGRAM.  IF RADAR USE IS
028291,000087:                                                                                                  #                DESIRED THE RADAR WAS TURNED ON AND LOCKED ON THE CSM BY
028292,000088:                                                                                                  #                PREVIOUS SELECTION OF P20.  RADAR SIGHTING MARKS WILL BE MADE
028293,000089:                                                                                                  #                AUTOMATICALLY APPROXIMATELY ONCE A MINUTE WHEN ENABLED BY THE
028294,000090:                                                                                                  #                TRACK AND UPDATE FLAGS (SEE P20).  THE RENDEZVOUS TRACKING
028295,000091:                                                                                                  #                MARK COUNTER IS ZEROED BY THE SELECTION OF P20 AND AFTER EACH
028296,000092:                                                                                                  #                THRUSTING MANEUVER.
028297,000093:                                                                                                  #        (5)     THE ISS NEED NOT BE ON TO COMPLETE THIS PROGRAM.
028298,000094:                                                                                                  #        (6)     THE OPERATION OF THE PROGRAM UTILIZES THE FOLLOWING FLAGS -
028299,000095: 
028300,000096:                                                                                                  #                        ACTIVE VEHICLE FLAG - DESIGNATES THE VEHICLE WHICH IS
028301,000097:                                                                                                  #                        DOING RENDEZVOUS THRUSTING MANEUVERS TO THE PROGRAM WHICH
028302,000098:                                                                                                  #                        CALCULATES THE MANEUVER PARAMETERS.  SET AT THE START OF
028303,000099:                                                                                                  #                        EACH RENDEZVOUS PRE-THRUSTING PROGRAM.
028304,000100: 
028305,000101:                                                                                                  #                        FINAL FLAG - SELECTS FINAL PROGRAM DISPLAYS AFTER CREW HAS
028306,000102:                                                                                                  #                        SELECTED THE FINAL MANEUVER COMPUTATION CYCLE.
028307,000103: 
028308,000104:                                                                                                  #                        EXTERNAL DELTA V FLAG - DESIGNATES THE TYPE OF STEERING
028309,000105:                                                                                                  #                        REQUIRED FOR EXECUTION OF THIS MANEUVER BY THE THRUSTING
028310,000106:                                                                                                  #                        PROGRAM SELECTED AFTER COMPLETION OF THIS PROGRAM.
028311,000107: 
028312,000108:                                                                                                  #        (7)     ONCE THE PARAMETWRS REQUIRED FOR COMPUTION OF THE MANEUVER
028313,000109:                                                                                                  #                HAVE BEEN COMPLETELY SPECIFIED, THE VALUE OF THE ACTIVE
028314,000110:                                                                                                  #                VEHICLE CENTRAL ANGLE OF TRANSFER IS COMPUTED AND STORED.
028315,000111:                                                                                                  #                THIS NUMBER WILL BE AVAILABLE FOR DISPLAY TO THE ASTRONAUT
028316,000112:                                                                                                  #                THROUGH THE USE OF V06N52.
028317,000113: 
028318,000114:                                                                                                  #                THE ASTRONAUT WILL CALL THIS DISPLAY TO VERIFY THAT THE
028319,000115:                                                                                                  #                CENTRAL ANGLE OF TRANSFER OF THE ACTIVE VEHICLE IS NOT WITHIN

Page 662

028321,000117:                                                                                                  #                170 TO 190 DEGREES.  IF THE ANGLE IS WITHIN THIS ZONE THE
028322,000118:                                                                                                  #                ASTRONAUT SHOULD REASSESS THE INPUT TARGETING PARAMETERS BASED
028323,000119:                                                                                                  #                UPON DELTA V AND EXPECTED MANEUVER TIME.
028324,000120:                                                                                                  #        (8)     THIS PROGRAM IS SELECTED BY THE ASTRONAUT BY DSKY ENTRY -
028325,000121: 
028326,000122:                                                                                                  #                        P34 IF THIS VEHICLE IS ACTIVE VEHICLE.
028327,000123: 
028328,000124:                                                                                                  #                        P74 IF THIS VEHICLE IS PASSIVE VEHICLE.
028329,000125: 
028330,000126:                                                                                                  #  INPUT
028331,000127:                                                                                                  #        (1)     TTPI    TIME OF THE TPI MANEUVER
028332,000128:                                                                                                  #        (2)     ELEV    DESIRED LOS ANGLE AT TPI
028333,000129:                                                                                                  #        (3)     CENTANG ORBITAL CENTRAL ANGLE OF THE PASSIVE VEHICLE DURING
028334,000130:                                                                                                  #                        TRANSFER FROM TPI TO TIME OF INTERCEPT
028335,000131: 
028336,000132:                                                                                                  #  OUTPUT
028337,000133:                                                                                                  #        (1)     TRKMKCNT        NUMBER OF MARKS
028338,000134:                                                                                                  #        (2)     TTOGO           TIME TO GO
028339,000135:                                                                                                  #        (3)     +MGA            MIDDLE GIMBAL ANGLE
028340,000136:                                                                                                  #        (4)     TTPI            COMPUTED TIME OF TPI MANEUVER
028341,000137:                                                                                                  #                 OR
028342,000138:                                                                                                  #                ELEV            COMPUTED LOS ANGLE AT TPI
028343,000139:                                                                                                  #        (5)     POSTTPI         PERIGEE ALTITUDE AFTER THE TPI MANEUVER
028344,000140:                                                                                                  #        (6)     DELVTPI         MAGNITUDE OF DELTA V AT TPI
028345,000141:                                                                                                  #        (7)     DELVTPF         MAGNITUDE OF DELTA V AT INTERCEPT
028346,000142:                                                                                                  #        (8)     DVLOS           DELTA VELOCITY AT TPI - LINE OF SIGHT
028347,000143:                                                                                                  #        (9)     DELVLVC         DELTA VELOCITY AT TPI - LOCAL VERTICAL COORDINATES
028348,000144: 
028349,000145:                                                                                                  #  DOWNLINK
028350,000146:                                                                                                  #        (1)     TTPI            TIME OF THE TPI MANEUVER
028351,000147:                                                                                                  #        (2)     TIG             TIME OF THE TPI MANEUVER
028352,000148:                                                                                                  #        (3)     ELEV            DESIRED LOS ANGLE AT TPI
028353,000149:                                                                                                  #        (4)     CENTANG         ORBITAL CENTRAL ANGLE OF THE PASSIVE VEHICLE DURING
028354,000150:                                                                                                  #                                TRANSFER FROM TPI TO TIME OF INTERCEPT
028355,000151:                                                                                                  #        (5)     DELVEET3        DELTA VELOCITY AT TPI - REFERENCE COORDINATES
028356,000152:                                                                                                  #        (6)     TPASS4          TIME OF INTERCEPT
028357,000153: 
028358,000154:                                                                                                  #  COMMUNICATION TO THRUSTING PROGRAMS
028359,000155:                                                                                                  #        (1)     TIG             TIME OF THE TPI MANEUVER
028360,000156:                                                                                                  #        (2)     RTARG           OFFSET TARGET POSITION
028361,000157:                                                                                                  #        (3)     TPASS4          TIME OF INTERCEPT
028362,000158:                                                                                                  #        (4)     XDELVFLG        RESET TO INDICATE LAMBERT (AIMPOINT) VG COMPUTATION
028363,000159: 
028364,000160:                                                                                                  #  SUBROUTINES USED
028365,000161:                                                                                                  #        AVFLAGA

Page 663

028367,000163:                                                                                                  #        AVFLAGP
028368,000164:                                                                                                  #        VNPOOH
028369,000165:                                                                                                  #        DISPLAYE
028370,000166:                                                                                                  #        SELECTMU
028371,000167:                                                                                                  #        PRECSET
028372,000168:                                                                                                  #        S33/34.1
028373,000169:                                                                                                  #        ALARM
028374,000170:                                                                                                  #        BANKCALL
028375,000171:                                                                                                  #        GOFLASH
028376,000172:                                                                                                  #        GOTOPOOH
028377,000173:                                                                                                  #        TIMETHET
028378,000174:                                                                                                  #        S34/35.2
028379,000175:                                                                                                  #        PERIAPO1
028380,000176:                                                                                                  #        SHIFTR1
028381,000177:                                                                                                  #        S34/35.5
028382,000178:                                                                                                  #        VN1645
028383,000179: 
028384,000180: 35,2000                                           SETLOC   CSI/CDH                               
028385,000181: 35,2000                                           BANK                                           
028386,000182: 35,2455  E7,1470                                  EBANK=   SUBEXIT                               
028387,000183: 35,2455                                           COUNT*   $$/P3474                              
028388,000184: 35,2455           02354        P34                TC       AVFLAGA                               
028389,000185: 35,2456           02460                           TC       P34/P74A                              
028390,000186: 35,2457           02361        P74                TC       AVFLAGP                               
028391,000187: 35,2460           02366        P34/P74A           TC       P20FLGON                              #  SET UPDATFLG, TRACKFLG
028392,000188: 35,2461           33632                           CAF      V06N37                                #  TTPI
028393,000189: 35,2462           03621                           TC       VNPOOH                                
028394,000190: 35,2463           00006                           EXTEND                                         
028395,000191: 35,2464           33655                           DCA      130DEG                                
028396,000192: 35,2465           53621                           DXCH     CENTANG                               
028397,000193: 35,2466           32424                           CAF      P30ZERO                               
028398,000194: 35,2467           55466                           TS       NN                                    
028399,000195: 35,2470           03603                           TC       DISPLAYE                              #  ELEV AND CENTANG
028400,000196: 35,2471           06042                           TC       INTPRET                               
028401,000197: 35,2472           71214                           CLEAR    DLOAD                                 
028402,000198: 35,2473           01270                                    ETPIFLAG                              
028403,000199: 35,2474           03636                                    TTPI                                  
028404,000200: 35,2475           17442                           STODL    TIG                                   
028405,000201: 35,2476           02257                                    ELEV                                  
028406,000202: 35,2477           43054                           BZE      SET                                   
028407,000203: 35,2500           72502                                    P34/P74B                              
028408,000204: 35,2501           01070                                    ETPIFLAG                              
028409,000205: 35,2502           77624        P34/P74B           CALL                                           
028410,000206: 35,2503           20000                                    SELECTMU                              
028411,000207: 35,2504                        DELELO             EQUALS   26D                                   
028412,000208: 35,2504           43145        P34/P74C           DLOAD    SET                                   
028413,000209: 35,2505           06524                                    ZEROVECS                              
028414,000210: 35,2506           03460                                    ITSWICH                               
028415,000211: 35,2507           43014                           BON      CLEAR                                 
028416,000212: 35,2510           01310                                    ETPIFLAG                              

Page 664

028418,000214: 35,2511           72513                                    SWCHSET                               
028419,000215: 35,2512           03660                                    ITSWICH                               
028420,000216: 35,2513           02317        SWCHSET            STORE    NOMTPI                                
028421,000217: 35,2514           43345        INTLOOP            DLOAD    DAD                                   
028422,000218: 35,2515           03636                                    TTPI                                  
028423,000219: 35,2516           02317                                    NOMTPI                                
028424,000220: 35,2517           34041                           STCALL   TDEC1                                 
028425,000221: 35,2520           46403                                    PRECSET                               
028426,000222: 35,2521           77624                           CALL                                           
028427,000223: 35,2522           72674                                    S33/34.1                              
028428,000224: 35,2523           77454                           BZE      EXIT                                  
028429,000225: 35,2524           72535                                    SWCHCLR                               
028430,000226: 35,2525           05567                           TC       ALARM                                 
028431,000227: 35,2526           00611                           OCT      611                                   
028432,000228: 35,2527           35006                           CAF      V05N09                                
028433,000229: 35,2530           04616                           TC       BANKCALL                              
028434,000230: 35,2531           20477                           CADR     GOFLASH                               
028435,000231: 35,2532           06001                           TC       GOTOPOOH                              
028436,000232: 35,2533           02460                           TC       P34/P74A                              #  PROCEED
028437,000233: 35,2534           02525                           TC       -7                                    #  V32
028438,000234: 
028439,000235: 35,2535           43014        SWCHCLR            BONCLR   BON                                   
028440,000236: 35,2536           03600                                    ITSWICH                               
028441,000237: 35,2537           72514                                    INTLOOP                               
028442,000238: 35,2540           01310                                    ETPIFLAG                              
028443,000239: 35,2541           72545                                    P34/P74D                              #  DISPLAY TTPI
028444,000240: 35,2542           77776                           EXIT                                           
028445,000241: 35,2543           03603                           TC       DISPLAYE                              #  DISPLAY ELEV AND CENTANG
028446,000242: 35,2544           02550                           TC       P34/P74E                              
028447,000243: 35,2545           77776        P34/P74D           EXIT                                           
028448,000244: 35,2546           33632                           CAF      V06N37                                #  TTPI
028449,000245: 35,2547           03621                           TC       VNPOOH                                
028450,000246: 35,2550           06042        P34/P74E           TC       INTPRET                               
028451,000247: 35,2551           71201                           SETPD    DLOAD                                 
028452,000248: 35,2552           00001                                    0D                                    
028453,000249: 35,2553           02777                                    RTX1                                  
028454,000250: 35,2554           14047                           STODL    X1                                    
028455,000251: 35,2555           03621                                    CENTANG                               
028456,000252: 35,2556           71406                           PUSH     COS                                   
028457,000253: 35,2557           16732                           STODL    CSTH                                  
028458,000254: 35,2560           77756                           SIN                                            
028459,000255: 35,2561           26730                           STOVL    SNTH                                  
028460,000256: 35,2562           03552                                    RPASS3                                
028461,000257: 35,2563           77657                           VSR*                                           
028462,000258: 35,2564           57176                                    0,2                                   
028463,000259: 35,2565           26655                           STOVL    RVEC                                  
028464,000260: 35,2566           03560                                    VPASS3                                
028465,000261: 35,2567           43057                           VSR*     SET                                   
028466,000262: 35,2570           57176                                    0,2                                   
028467,000263: 35,2571           03466                                    RVSW                                  

Page 665

028469,000265: 35,2572           36744                           STCALL   VVEC                                  
028470,000266: 35,2573           24732                                    TIMETHET                              
028471,000267: 35,2574           77745                           DLOAD                                          
028472,000268: 35,2575           03636                                    TTPI                                  
028473,000269: 35,2576           03610                           STORE    INTIME                                #  FOR INITVEL
028474,000270: 35,2577           77615                           DAD                                            
028475,000271: 35,2600           00037                                    T                                     #  RENDEZVOUS TIME
028476,000272: 35,2601           37631                           STCALL   TPASS4                                #  FOR INITVEL
028477,000273: 35,2602           73216                                    S34/35.2                              
028478,000274: 35,2603           51575                           VLOAD    ABVAL                                 
028479,000275: 35,2604           02366                                    DELVEET3                              
028480,000276: 35,2605           27576                           STOVL    DELVTPI                               
028481,000277: 35,2606           03506                                    VPASS4                                
028482,000278: 35,2607           51451                           VSU      ABVAL                                 
028483,000279: 35,2610           03566                                    VTPRIME                               
028484,000280: 35,2611           26350                           STOVL    DELVTPF                               
028485,000281: 35,2612           03536                                    RACT3                                 
028486,000282: 35,2613           45115                           PDVL     CALL                                  
028487,000283: 35,2614           02337                                    VIPRIME                               
028488,000284: 35,2615           46341                                    PERIAPO1                              
028489,000285: 35,2616           77624                           CALL                                           
028490,000286: 35,2617           46451                                    SHIFTR1                               
028491,000287: 35,2620           17606                           STODL    POSTTPI                               
028492,000288: 35,2621           03636                                    TTPI                                  
028493,000289: 35,2622           03442                           STORE    TIG                                   
028494,000290: 35,2623           77776                           EXIT                                           
028495,000291: 35,2624           33634                           CAF      V06N58                                
028496,000292: 35,2625           03621                           TC       VNPOOH                                
028497,000293: 35,2626           06042                           TC       INTPRET                               
028498,000294: 35,2627           77624                           CALL                                           
028499,000295: 35,2630           73432                                    S34/35.5                              
028500,000296: 35,2631           77624                           CALL                                           
028501,000297: 35,2632           73515                                    VN1645                                
028502,000298: 35,2633           77650                           GOTO                                           
028503,000299: 35,2634           72504                                    P34/P74C                              

Page 666

028505,000301:                                                                                                  #  RENDEZVOUS MID-COURSE MANEUVER PROGRAMS (P35 AND P75)
028506,000302:                                                                                                  #  MOD NO -1                     LOG SECTION - P32-P35, P72-P75
028507,000303:                                                                                                  #  MOD BY WHITE.P                DATE   1 JUNE 67
028508,000304: 
028509,000305:                                                                                                  #  PURPOSE
028510,000306:                                                                                                  #        (1)     TO CALCULATE THE REQUIRED DELTA V AND OTHER INITIAL CONDITIONS
028511,000307:                                                                                                  #                REQUIRED BY THE ACTIVE VEHICLE FOR EXECUTION OF THE NEXT
028512,000308:                                                                                                  #                MIDCOURSE CORRECTION OF THE TRANSFER PHASE OF AN ACTIVE
028513,000309:                                                                                                  #                VEHICLE RENDEZVOUS.
028514,000310:                                                                                                  #        (2)     TO DISPLAY TO THE ASTRONAUT AND THE GROUND CERTAIN DEPENDENT
028515,000311:                                                                                                  #                VARIABLES ASSOCIATED WITH THE MANEUVER FOR APPROVAL BY THE
028516,000312:                                                                                                  #                ASTRONAUT/GROUND.
028517,000313:                                                                                                  #        (3)     TO STORE THE TPM TARGET PARAMETERS FOR USE BY THE DESIRED
028518,000314:                                                                                                  #                THRUSTING PROGRAM.
028519,000315: 
028520,000316:                                                                                                  #  ASSUMPTIONS
028521,000317:                                                                                                  #        (1)     THE ISS NEED NOT BE ON TO COMPLETE THIS PROGRAM.
028522,000318:                                                                                                  #        (2)     STATE VECTOR UPDATES BY P27 ARE DISALLOWED DURING AUTOMATIC
028523,000319:                                                                                                  #                STATE VECTOR UPDATING INITIATED BY P20 (SEE ASSUMPTION (3)).
028524,000320:                                                                                                  #        (3)     THE RENDEZVOUS RADAR IS ON AND IS LOCKED ON THE CSM.  THIS WAS
028525,000321:                                                                                                  #                DONE DURING PREVIOUS SELECTION OF P20.  RADAR SIGHTING MARKS
028526,000322:                                                                                                  #                WILL BE MADE AUTOMATICALLY APPROXIMATELY ONCE A MINUTE WHEN
028527,000323:                                                                                                  #                ENABLED BY THE TRACK AND UPDATE FLAGS (SEE P20).  THE
028528,000324:                                                                                                  #                RENDEZVOUS TRACKING MARK COUNTER IS ZEROED BY THE SELECTION OF
028529,000325:                                                                                                  #                P20 AND AFTER EACH THRUSTING MANEUVER.
028530,000326:                                                                                                  #        (4)     THE OPERATION OF THE PROGRAM UTILIZES THE FOLLOWING FLAGS -
028531,000327: 
028532,000328:                                                                                                  #                        ACTIVE VEHICLE FLAG - DESIGNATES THE VEHICLE WHICH IS
028533,000329:                                                                                                  #                        DOING RENDEZVOUS THRUSTING MANEUVERS TO THE PROGRAM WHICH
028534,000330:                                                                                                  #                        CALCULATES THE MANEUVER PARAMETERS.  SET AT THE START OF
028535,000331:                                                                                                  #                        EACH RENDEZVOUS PRE-THRUSTING PROGRAM.
028536,000332: 
028537,000333:                                                                                                  #                        FINAL FLAG - SELECTS FINAL PROGRAM DISPLAYS AFTER CREW HAS
028538,000334:                                                                                                  #                        SELECTED THE FINAL MANEUVER COMPUTATION CYCLE.
028539,000335: 
028540,000336:                                                                                                  #                        EXTERNAL DELTA V FLAG - DESIGNATES THE TYPE OF STEERING
028541,000337:                                                                                                  #                        REQUIRED FOR EXECUTION OF THIS MANEUVER BY THE THRUSTING
028542,000338:                                                                                                  #                        PROGRAM SELECTED AFTER COMPLETION OF THIS PROGRAM.
028543,000339: 
028544,000340:                                                                                                  #        (5)     THE TIME OF INTERCEPT (T(INT)) WAS DEFINED BY PREVIOUS
028545,000341:                                                                                                  #                COMPLETION OF THE TRANSFER PHASE INITIATION (TPI) PROGRAM
028546,000342:                                                                                                  #                (P34/P74) AND IS PRESENTLY AVAILABLE IN STORAGE.

Page 667

028548,000344:                                                                                                  #        (6)     ONCE THE PARAMETERS REQUIRED FOR COMPUTION OF THE MANEUVER
028549,000345:                                                                                                  #                HAVE BEEN COMPLETELY SPECIFIED, THE VALUE OF THE ACTIVE
028550,000346:                                                                                                  #                VEHICLE CENTRAL ANGLE OF TRANSFER IS COMPUTED AND STORED.
028551,000347:                                                                                                  #                THIS NUMBER WILL BE AVAILABLE FOR DISPLAY TO THE ASTRONAUT
028552,000348:                                                                                                  #                THROUGH THE USE OF V06N52.
028553,000349: 
028554,000350:                                                                                                  #                THE ASTRONAUT WILL CALL THIS DISPLAY TO VERIFY THAT THE
028555,000351:                                                                                                  #                CENTRAL ANGLE OF TRANSFER OF THE ACTIVE VEHICLE IS NOT WITHIN
028556,000352:                                                                                                  #                170 TO 190 DEGREES.  IF THE ANGLE IS WITHIN THIS ZONE THE
028557,000353:                                                                                                  #                ASTRONAUT SHOULD REASSESS THE INPUT TARGETING PARAMETERS BASED
028558,000354:                                                                                                  #                UPON DELTA V AND EXPECTED MANEUVER TIME.
028559,000355:                                                                                                  #        (7)     THIS PROGRAM IS SELECTED BY THE ASTRONAUT BY DSKY ENTRY -
028560,000356: 
028561,000357:                                                                                                  #                        P35 IF THIS VEHICLE IS ACTIVE VEHICLE.
028562,000358: 
028563,000359:                                                                                                  #                        P75 IF THIS VEHICLE IS PASSIVE VEHICLE.
028564,000360: 
028565,000361:                                                                                                  #  INPUT
028566,000362:                                                                                                  #        (1)     TPASS4          TIME OF INTERCEPT - SAVED FROM P34/P74
028567,000363: 
028568,000364:                                                                                                  #  OUTPUT
028569,000365:                                                                                                  #        (1)     TRKMKCNT        NUMBER OF MARKS
028570,000366:                                                                                                  #        (2)     TTOGO           TIME TO GO
028571,000367:                                                                                                  #        (3)     +MGA            MIDDLE GIMBAL ANGLE
028572,000368:                                                                                                  #        (4)     DVLOS           DELTA VELOCITY AT MID - LINE OF SIGHT
028573,000369:                                                                                                  #        (5)     DELVLVC         DELTA VELOCITY AT MID - LOCAL VERTICAL COORDINATES
028574,000370: 
028575,000371:                                                                                                  #  DOWNLINK
028576,000372:                                                                                                  #        (1)     TIG             TIME OF THE TPM MANEUVER
028577,000373:                                                                                                  #        (2)     DELVEET3        DELTA VELOCITY AT TPM - REFERENCE COORDINATES
028578,000374:                                                                                                  #        (3)     TPASS4          TIME OF INTERCEPT
028579,000375: 
028580,000376:                                                                                                  #  COMMUNICATION TO THRUSTING PROGRAMS
028581,000377:                                                                                                  #        (1)     TIG             TIME OF THE TPM MANEUVER
028582,000378:                                                                                                  #        (2)     RTARG           OFFSET TARGET POSITION
028583,000379:                                                                                                  #        (3)     TPASS4          TIME OF INTERCEPT
028584,000380:                                                                                                  #        (4)     XDELVFLG        RESET TO INDICATE LAMBERT (AIMPOINT) VG COMPUTATION
028585,000381: 
028586,000382:                                                                                                  #  SUBROUTINES USED
028587,000383:                                                                                                  #        AVFLAGA
028588,000384:                                                                                                  #        AVFLAGP
028589,000385:                                                                                                  #        LOADTIME
028590,000386:                                                                                                  #        SELECTMU
028591,000387:                                                                                                  #        PRECSET
028592,000388:                                                                                                  #        S34/35.1
028593,000389:                                                                                                  #        S34/35.2

Page 668

028595,000391:                                                                                                  #        S34/35.5
028596,000392:                                                                                                  #        VN1645
028597,000393: 
028598,000394: 35,2635                                           COUNT*   $$/P3575                              
028599,000395: 35,2635  E7,1575                                  EBANK=   KT                                    
028600,000396: 
028601,000397: 35,2635           02354        P35                TC       AVFLAGA                               
028602,000398: 35,2636           00006                           EXTEND                                         
028603,000399: 35,2637           31401                           DCA      ATIGINC                               
028604,000400: 35,2640           02644                           TC       P35/P75A                              
028605,000401: 35,2641           02361        P75                TC       AVFLAGP                               
028606,000402: 35,2642           00006                           EXTEND                                         
028607,000403: 35,2643           31403                           DCA      PTIGINC                               
028608,000404: 35,2644           53576        P35/P75A           DXCH     KT                                    
028609,000405: 35,2645           02366                           TC       P20FLGON                              #  SET UPDATFLG, TRACKFLG
028610,000406: 35,2646           06042                           TC       INTPRET                               
028611,000407: 35,2647           77624                           CALL                                           
028612,000408: 35,2650           20000                                    SELECTMU                              
028613,000409: 35,2651           77634        P35/P75B           RTB                                            
028614,000410: 35,2652           21574                                    LOADTIME                              
028615,000411: 35,2653           03612                           STORE    TSTRT                                 
028616,000412: 35,2654           77615                           DAD                                            
028617,000413: 35,2655           03576                                    KT                                    
028618,000414: 35,2656           03442                           STORE    TIG                                   
028619,000415: 35,2657           03610                           STORE    INTIME                                #  FOR INITVEL
028620,000416: 35,2660           34041                           STCALL   TDEC1                                 
028621,000417: 35,2661           46403                                    PRECSET                               #  ADVANCE BOTH VEHICLES
028622,000418: 35,2662           77624                           CALL                                           
028623,000419: 35,2663           73204                                    S34/35.1                              #  GET NORM AND LOS FOR TRANSFORM
028624,000420: 35,2664           77624                           CALL                                           
028625,000421: 35,2665           73216                                    S34/35.2                              #  GET DELTA V(LV)
028626,000422: 35,2666           77624                           CALL                                           
028627,000423: 35,2667           73432                                    S34/35.5                              
028628,000424: 35,2670           77624                           CALL                                           
028629,000425: 35,2671           73515                                    VN1645                                
028630,000426: 35,2672           77650                           GOTO                                           
028631,000427: 35,2673           72651                                    P35/P75B                              

Page 669

028633,000429:                                                                                                  #  ..... S33/34.1 .....
028634,000430: 
028635,000431: 35,2674           66220        S33/34.1           STQ      SSP                                   
028636,000432: 35,2675           03463                                    NORMEX                                
028637,000433: 35,2676           03614                                    TITER                                 
028638,000434: 35,2677           40000                           OCT      40000                                 
028639,000435: 35,2700           40345                           DLOAD    SETPD                                 
028640,000436: 35,2701           33643                                    MAX250                                
028641,000437: 35,2702           00001                                    0D                                    
028642,000438: 35,2703           27574                           STOVL    SECMAX                                
028643,000439: 35,2704           03536                                    RACT3                                 
028644,000440: 35,2705           27500                           STOVL    RAPREC                                
028645,000441: 35,2706           03544                                    VACT3                                 
028646,000442: 35,2707           27506                           STOVL    VAPREC                                
028647,000443: 35,2710           03552                                    RPASS3                                
028648,000444: 35,2711           27522                           STOVL    RPPREC                                
028649,000445: 35,2712           03560                                    VPASS3                                
028650,000446: 35,2713           03530                           STORE    VPPREC                                
028651,000447: 35,2714           77624        ELCALC             CALL                                           
028652,000448: 35,2715           73204                                    S34/35.1                              #  NORMAL AND LOS
028653,000449: 35,2716           63235                           VXV      PDVL                                  
028654,000450: 35,2717           03536                                    RACT3                                 #  (RA*VA)*RA 0D
028655,000451: 35,2720           53515                           PDVL     UNIT                                  #  ULOS AT 6D
028656,000452: 35,2721           03536                                    RACT3                                 
028657,000453: 35,2722           46315                           PDVL     VPROJ                                 #  XCHNJ AND UP
028658,000454: 35,2723           51352                           VSL2     BVSU                                  
028659,000455: 35,2724           02311                                    ULOS                                  
028660,000456: 35,2725           63256                           UNIT     PDVL                                  #  UP AT 0D
028661,000457: 35,2726           63241                           DOT      PDVL                                  #  UP.UN*RA AT 0D
028662,000458: 35,2727           00001                                    0D                                    #  UP IN MPAC
028663,000459: 35,2730           75241                           DOT      SIGN                                  
028664,000460: 35,2731           02311                                    ULOS                                  
028665,000461: 35,2732           65552                           SL1      ACOS                                  
028666,000462: 35,2733           50315                           PDVL     DOT                                   #  EA AT 0D
028667,000463: 35,2734           02311                                    ULOS                                  
028668,000464: 35,2735           03536                                    RACT3                                 
028669,000465: 35,2736           71244                           BPL      DLOAD                                 
028670,000466: 35,2737           72742                                    TESTY                                 
028671,000467: 35,2740           06532                                    DPPOSMAX                              
028672,000468: 35,2741           41425                           DSU      PUSH                                  
028673,000469: 35,2742           71214        TESTY              BOFF     DLOAD                                 
028674,000470: 35,2743           03740                                    ITSWICH                               
028675,000471: 35,2744           73171                                    ELEX                                  
028676,000472: 35,2745           03576                                    DELEL                                 
028677,000473: 35,2746           14033                           STODL    DELELO                                
028678,000474: 35,2747           77625                           DSU                                            
028679,000475: 35,2750           02257                                    ELEV                                  
028680,000476: 35,2751           03576                           STORE    DELEL                                 
028681,000477: 35,2752           45246                           ABS      DSU                                   
028682,000478: 35,2753           33647                                    ELEPS                                 

Page 670

028684,000480: 35,2754           77640                           BMN                                            
028685,000481: 35,2755           73201                                    TIMEX                                 #  COMMERCIALS EVERYWHERE
028686,000482: 35,2756           70535        FIGTIME            SLOAD    SR1                                   
028687,000483: 35,2757           03614                                    TITER                                 
028688,000484: 35,2760           72030                           BHIZ     LXA,1                                 
028689,000485: 35,2761           03463                                    NORMEX                                #  TOO MANY ITERATIONS
028690,000486: 35,2762           00154                                    MPAC                                  
028691,000487: 35,2763           77330                           SXA,1    VLOAD                                 
028692,000488: 35,2764           03613                                    TITER                                 
028693,000489: 35,2765           03552                                    RPASS3                                
028694,000490: 35,2766           65256                           UNIT     PDDL                                  
028695,000491: 35,2767           00045                                    36D                                   
028696,000492: 35,2770           53515                           PDVL     UNIT                                  
028697,000493: 35,2771           03536                                    RACT3                                 
028698,000494: 35,2772           77725                           PDDL                                           
028699,000495: 35,2773           41525                           PDDL     PUSH                                  
028700,000496: 35,2774           00045                                    36D                                   
028701,000497: 35,2775           77621                           BDSU                                           
028702,000498: 35,2776           00015                                    12D                                   
028703,000499: 35,2777           14037                           STODL    30D                                   #  RP-RA MAGNITUDES
028704,000500: 35,3000           06522                                    DPHALF                                
028705,000501: 35,3001           41425                           DSU      PUSH                                  
028706,000502: 35,3002           02257                                    ELEV                                  
028707,000503: 35,3003           50165                           SIGN     BMN                                   
028708,000504: 35,3004           00037                                    30D                                   
028709,000505: 35,3005           03463                                    NORMEX                                
028710,000506: 35,3006           71545                           DLOAD    COS                                   
028711,000507: 35,3007           56205                           DMP      DDV                                   
028712,000508: 35,3010           00017                                    14D                                   
028713,000509: 35,3011           00015                                    12D                                   
028714,000510: 35,3012           77676                           DCOMP                                          #  SINCE COS(180-A)=-COS A
028715,000511: 35,3013           00035                           STORE    28D                                   
028716,000512: 35,3014           44246                           ABS      BDSU                                  
028717,000513: 35,3015           06522                                    DPHALF                                
028718,000514: 35,3016           77240                           BMN      VLOAD                                 
028719,000515: 35,3017           03463                                    NORMEX                                
028720,000516: 35,3020           02261                                    UNRM                                  
028721,000517: 35,3021           53435                           VXV      UNIT                                  
028722,000518: 35,3022           00007                                    6D                                    #  UN*RA
028723,000519: 35,3023           41241                           DOT      DMP                                   
028724,000520: 35,3024           03544                                    VACT3                                 
028725,000521: 35,3025           00015                                    12D                                   
028726,000522: 35,3026           47315                           PDVL     VXV                                   
028727,000523: 35,3027           00001                                    0D                                    
028728,000524: 35,3030           03560                                    VPASS3                                
028729,000525: 35,3031           53435                           VXV      UNIT                                  
028730,000526: 35,3032           00001                                    0D                                    #  (RP*VP)*RP
028731,000527: 35,3033           41241                           DOT      DMP                                   
028732,000528: 35,3034           03560                                    VPASS3                                
028733,000529: 35,3035           00017                                    14D                                   

Page 671

028735,000531: 35,3036           77621                           BDSU                                           
028736,000532: 35,3037           63301                           NORM     PDVL                                  #  NORMALIZED WA-WP 12D
028737,000533: 35,3040           00047                                    X1                                    
028738,000534: 35,3041           00007                                    6D                                    
028739,000535: 35,3042           50235                           VXV      DOT                                   
028740,000536: 35,3043           00001                                    0D                                    
028741,000537: 35,3044           02261                                    UNRM                                  #  RA*RP.UN 14D
028742,000538: 35,3045           50315                           PDVL     DOT                                   
028743,000539: 35,3046           00001                                    0D                                    
028744,000540: 35,3047           00007                                    6D                                    
028745,000541: 35,3050           65552                           SL1      ACOS                                  
028746,000542: 35,3051           77765                           SIGN                                           
028747,000543: 35,3052           43225                           DSU      DAD                                   #  ALPHA PI
028748,000544: 35,3053           06522                                    DPHALF                                
028749,000545: 35,3054           02257                                    ELEV                                  
028750,000546: 35,3055           65525                           PDDL     ACOS                                  
028751,000547: 35,3056           00035                                    28D                                   
028752,000548: 35,3057           75221                           BDSU     SIGN                                  
028753,000549: 35,3060           06522                                    DPHALF                                
028754,000550: 35,3061           00037                                    30D                                   #  CONTAINS RP-RA
028755,000551: 35,3062           77615                           DAD                                            
028756,000552: 35,3063           56205                           DMP      DDV                                   
028757,000553: 35,3064           33641                                    TWOPI                                 
028758,000554: 35,3065           77605                           DMP                                            
028759,000555: 35,3066           41257                           SL*      DMP                                   
028760,000556: 35,3067           20176                                    0          -3,1                       
028761,000557: 35,3070           51406                           PUSH     ABS                                   
028762,000558: 35,3071           50025                           DSU      BMN                                   
028763,000559: 35,3072           03574                                    SECMAX                                
028764,000560: 35,3073           73077                                    OKMAX                                 
028765,000561: 35,3074           75345                           DLOAD    SIGN                                  #  REPLACE TIME WITH MAX TIME SIGNED
028766,000562: 35,3075           03574                                    SECMAX                                
028767,000563: 35,3076           77606                           PUSH                                           
028768,000564: 35,3077           51135        OKMAX              SLOAD    BPL                                   #  TEST FIRST ITERATION
028769,000565: 35,3100           03614                                    TITER                                 
028770,000566: 35,3101           73107                                    REPETE                                
028771,000567: 35,3102           71331                           SSP      DLOAD                                 
028772,000568: 35,3103           03614                                    TITER                                 
028773,000569: 35,3104           37777                           OCT      37777                                 
028774,000570: 35,3105           77650                           GOTO                                           
028775,000571: 35,3106           73145                                    STORDELT                              
028776,000572: 35,3107           41345        REPETE             DLOAD    DMP                                   
028777,000573: 35,3110           03576                                    DELEL                                 
028778,000574: 35,3111           00033                                    DELELO                                
028779,000575: 35,3112           71244                           BPL      DLOAD                                 
028780,000576: 35,3113           73123                                    NEXTES                                
028781,000577: 35,3114           03574                                    SECMAX                                
028782,000578: 35,3115           77605                           DMP                                            
028783,000579: 35,3116           33645                                    THIRD                                 
028784,000580: 35,3117           17574                           STODL    SECMAX                                

Page 672

028786,000582: 35,3120           70446                           ABS      SR1                                   #  CROSSED OVER SOLUTION
028787,000583: 35,3121           52076                           DCOMP    GOTO                                  #  DT=(-SIGN(DTO)//DT//)/2
028788,000584: 35,3122           73133                                    RESIGN                                
028789,000585: 35,3123           51545        NEXTES             DLOAD    ABS                                   
028790,000586: 35,3124           03576                                    DELEL                                 
028791,000587: 35,3125           51525                           PDDL     ABS                                   
028792,000588: 35,3126           00033                                    DELELO                                
028793,000589: 35,3127           77625                           DSU                                            
028794,000590: 35,3130           71240                           BMN      DLOAD                                 
028795,000591: 35,3131           73136                                    REVERS                                #  WRONG DIRECTION
028796,000592: 35,3132           77646                           ABS                                            
028797,000593: 35,3133           52165        RESIGN             SIGN     GOTO                                  
028798,000594: 35,3134           03606                                    DELTEEO                               
028799,000595: 35,3135           73145                                    STORDELT                              
028800,000596: 35,3136           57545        REVERS             DLOAD    DCOMP                                 
028801,000597: 35,3137           03606                                    DELTEEO                               
028802,000598: 35,3140           70406                           PUSH     SR1                                   
028803,000599: 35,3141           03606                           STORE    DELTEEO                               
028804,000600: 35,3142           77615                           DAD                                            
028805,000601: 35,3143           77650                           GOTO                                           
028806,000602: 35,3144           73146                                    ADTIME                                
028807,000603: 35,3145           03606        STORDELT           STORE    DELTEEO                               
028808,000604: 35,3146           77615        ADTIME             DAD                                            
028809,000605: 35,3147           02317                                    NOMTPI                                #  SUM OF DELTA T:S
028810,000606: 35,3150           02317                           STORE    NOMTPI                                
028811,000607: 35,3151           63375                           VLOAD    PDVL                                  
028812,000608: 35,3152           03506                                    VAPREC                                
028813,000609: 35,3153           03500                                    RAPREC                                
028814,000610: 35,3154           77624                           CALL                                           
028815,000611: 35,3155           73372                                    GOINT                                 
028816,000612: 35,3156           77624                           CALL                                           
028817,000613: 35,3157           46425                                    ACTIVE                                #  STORE NEW RACT3 VACT3
028818,000614: 35,3160           63375                           VLOAD    PDVL                                  
028819,000615: 35,3161           03530                                    VPPREC                                
028820,000616: 35,3162           03522                                    RPPREC                                
028821,000617: 35,3163           77624                           CALL                                           
028822,000618: 35,3164           73372                                    GOINT                                 
028823,000619: 35,3165           77624                           CALL                                           
028824,000620: 35,3166           46435                                    PASSIVE                               #  STORE NEW RPASS3 VPASS3
028825,000621: 35,3167           77650                           GOTO                                           
028826,000622: 35,3170           72714                                    ELCALC                                
028827,000623: 35,3171           43345        ELEX               DLOAD    DAD                                   
028828,000624: 35,3172           03636                                    TTPI                                  
028829,000625: 35,3173           02317                                    NOMTPI                                
028830,000626: 35,3174           17636                           STODL    TTPI                                  
028831,000627: 35,3175           77614                           BON                                            
028832,000628: 35,3176           01310                                    ETPIFLAG                              
028833,000629: 35,3177           73201                                    TIMEX                                 
028834,000630: 35,3200           02257                           STORE    ELEV                                  
028835,000631: 35,3201           52145        TIMEX              DLOAD    GOTO                                  

Page 673

028837,000633: 35,3202           06524                                    ZEROVECS                              
028838,000634: 35,3203           03463                                    NORMEX                                
028839,000635: 

Page 674

028841,000637:                                                                                                  #  ..... S34/35.1 .....
028842,000638: 
028843,000639:                                                                                                  #  COMPUTE UNIT NORMAL AND LINE OF SIGHT VECTORS GIVEN THE ACTIVE AND
028844,000640:                                                                                                  #  PASSIVE POS AND VEL AT TIME T3
028845,000641: 
028846,000642: 35,3204           52375        S34/35.1           VLOAD    VSU                                   
028847,000643: 35,3205           03552                                    RPASS3                                
028848,000644: 35,3206           03536                                    RACT3                                 
028849,000645: 35,3207           41456                           UNIT     PUSH                                  
028850,000646: 35,3210           26311                           STOVL    ULOS                                  
028851,000647: 35,3211           03536                                    RACT3                                 
028852,000648: 35,3212           53435                           VXV      UNIT                                  
028853,000649: 35,3213           03544                                    VACT3                                 
028854,000650: 35,3214           02261                           STORE    UNRM                                  
028855,000651: 35,3215           77616                           RVQ                                            
028856,000652: 

Page 675

028858,000654:                                                                                                  #  ..... S34/35.2 .....
028859,000655: 
028860,000656:                                                                                                  #  ADVANCE PASSIVE VEH TO RENDEZVOUS TIME AND GET REQ VEL FROM LAMBERT
028861,000657: 
028862,000658: 35,3216           77220        S34/35.2           STQ      VLOAD                                 
028863,000659: 35,3217           03470                                    SUBEXIT                               
028864,000660: 35,3220           03560                                    VPASS3                                
028865,000661: 35,3221           65315                           PDVL     PDDL                                  
028866,000662: 35,3222           03552                                    RPASS3                                
028867,000663: 35,3223           03610                                    INTIME                                
028868,000664: 35,3224           65325                           PDDL     PDDL                                  
028869,000665: 35,3225           03631                                    TPASS4                                
028870,000666: 35,3226           33641                                    TWOPI                                 #  CONIC
028871,000667: 35,3227           46125                           PDDL     BHIZ                                  
028872,000668: 35,3230           03467                                    NN                                    
028873,000669: 35,3231           73235                                    S3435.23                              
028874,000670: 35,3232           77745                           DLOAD                                          
028875,000671: 35,3233           41545                           DLOAD    PUSH                                  
028876,000672: 35,3234           06524                                    ZEROVECS                              #  PRECISION
028877,000673: 35,3235           77624        S3435.23           CALL                                           
028878,000674: 35,3236           73376                                    INTINT                                #  GET TARGET VECTOR
028879,000675: 35,3237           27444        S3435.25           STOVL    RTARG                                 
028880,000676: 35,3240           00007                                    VATT                                  
028881,000677: 35,3241           27506                           STOVL    VPASS4                                
028882,000678: 35,3242           03444                                    RTARG                                 
028883,000679:                                                                                                  #  COMPUTE PHI = PI + (ACOS(UNIT RA.UNIT RP) - PI) SIGN(RA*RP.U)
028884,000680: 35,3243           63256                           UNIT     PDVL                                  #  UNIT RP
028885,000681: 35,3244           03536                                    RACT3                                 
028886,000682: 35,3245           41456                           UNIT     PUSH                                  #  UNIT RA
028887,000683: 35,3246           50235                           VXV      DOT                                   
028888,000684: 35,3247           00001                                    0D                                    
028889,000685: 35,3250           02261                                    UNRM                                  #  RA*RP.U
028890,000686: 35,3251           77715                           PDVL                                           
028891,000687: 35,3252           72441                           DOT      SL1                                   #  UNIT RA.UNIT RP
028892,000688: 35,3253           00001                                    0D                                    
028893,000689: 35,3254           75326                           ACOS     SIGN                                  
028894,000690: 35,3255           43244                           BPL      DAD                                   
028895,000691: 35,3256           73260                                    NOPIE                                 
028896,000692: 35,3257           06532                                    DPPOSMAX                              #  REASONABLE TWO PI
028897,000693: 35,3260           15756        NOPIE              STODL    ACTCENT                               
028898,000694: 35,3261           03631                                    TPASS4                                
028899,000695: 35,3262           77625                           DSU                                            
028900,000696: 35,3263           03610                                    INTIME                                
028901,000697: 35,3264           03452                           STORE    DELLT4                                
028902,000698: 35,3265           40335                           SLOAD    SETPD                                 
028903,000699: 35,3266           03467                                    NN                                    #  NUMBER OF OFFSETS
028904,000700: 35,3267           00001                                    0D                                    
028905,000701: 35,3270           63325                           PDDL     PDVL                                  
028906,000702: 35,3271           33653                                    EPSFOUR                               
028907,000703: 35,3272           03536                                    RACT3                                 
028908,000704: 35,3273           26323                           STOVL    RINIT                                 

Page 676

028910,000706: 35,3274           03544                                    VACT3                                 
028911,000707: 35,3275           36331                           STCALL   VINIT                                 
028912,000708: 35,3276           22000                                    INITVEL                               
028913,000709: 35,3277           77624                           CALL                                           
028914,000710: 35,3300           73357                                    LOMAT                                 
028915,000711: 35,3301           64375                           VLOAD    MXV                                   
028916,000712: 35,3302           02366                                    DELVEET3                              
028917,000713: 35,3303           00001                                    0D                                    
028918,000714: 35,3304           77772                           VSL1                                           
028919,000715: 35,3305           37434                           STCALL   DELVLVC                               
028920,000716: 35,3306           03470                                    SUBEXIT                               
028921,000717: 

Page 677

028923,000719:                                                                                                  #  ..... S34/35.3 .....
028924,000720: 
028925,000721: 35,3307           45020        S34/35.3           STQ      CALL                                  
028926,000722: 35,3310           03463                                    NORMEX                                
028927,000723: 35,3311           73357                                    LOMAT                                 #  GET MATRIX IN PUSH LIST
028928,000724: 35,3312           61375                           VLOAD    VXM                                   
028929,000725: 35,3313           03434                                    DELVLVC                               #  NEW DEL V TPI
028930,000726: 35,3314           00001                                    0D                                    
028931,000727: 35,3315           77772                           VSL1                                           
028932,000728: 35,3316           02366                           STORE    DELVEET3                              #  SAVE FOR TRANSFORM
028933,000729: 35,3317           63255                           VAD      PDVL                                  
028934,000730: 35,3320           03544                                    VACT3                                 #  NEW V REQ
028935,000731: 35,3321           03536                                    RACT3                                 
028936,000732: 35,3322           65325                           PDDL     PDDL                                  
028937,000733: 35,3323           03442                                    TIG                                   
028938,000734: 35,3324           03631                                    TPASS4                                
028939,000735: 35,3325           41525                           PDDL     PUSH                                  
028940,000736: 35,3326           06532                                    DPPOSMAX                              
028941,000737: 35,3327           77624                           CALL                                           #  INTEG. FOR NEW TARGET VEC
028942,000738: 35,3330           73376                                    INTINT                                
028943,000739: 35,3331           77775                           VLOAD                                          
028944,000740: 35,3332           00001                                    RATT                                  
028945,000741: 35,3333           03444                           STORE    RTARG                                 
028946,000742: 35,3334           41575        NOVRWRT            VLOAD    PUSH                                  
028947,000743: 35,3335           02311                                    ULOS                                  
028948,000744: 35,3336           57435                           VXV      VCOMP                                 
028949,000745: 35,3337           02261                                    UNRM                                  
028950,000746: 35,3340           41456                           UNIT     PUSH                                  
028951,000747: 35,3341           76435                           VXV      VSL1                                  
028952,000748: 35,3342           02311                                    ULOS                                  
028953,000749: 35,3343           77715                           PDVL                                           
028954,000750: 35,3344           64315                           PDVL     MXV                                   
028955,000751: 35,3345           02366                                    DELVEET3                              
028956,000752: 35,3346           00001                                    0D                                    
028957,000753: 35,3347           77772                           VSL1                                           
028958,000754: 35,3350           36303                           STCALL   DVLOS                                 
028959,000755: 35,3351           03463                                    NORMEX                                
028960,000756: 

Page 678

028962,000758:                                                                                                  #  ..... S34/35.4 .....
028963,000759: 
028964,000760: 35,3352           40220        S34/35.4           STQ      SETPD                                 #  NO ASTRONAUT OVERWRITE
028965,000761: 35,3353           03463                                    NORMEX                                
028966,000762: 35,3354           00001                                    0D                                    
028967,000763: 35,3355           77650                           GOTO                                           
028968,000764: 35,3356           73334                                    NOVRWRT                               
028969,000765: 

Page 679

028971,000767:                                                                                                  #  ..... LOMAT .....
028972,000768: 
028973,000769: 35,3357           57575        LOMAT              VLOAD    VCOMP                                 
028974,000770: 35,3360           02261                                    UNRM                                  
028975,000771: 35,3361           24007                           STOVL    6D                                    #  Y
028976,000772: 35,3362           03536                                    RACT3                                 
028977,000773: 35,3363           57456                           UNIT     VCOMP                                 
028978,000774: 35,3364           00015                           STORE    12D                                   
028979,000775: 35,3365           76435                           VXV      VSL1                                  
028980,000776: 35,3366           02261                                    UNRM                                  #  Z*-Y
028981,000777: 35,3367           00001                           STORE    0D                                    
028982,000778: 35,3370           43401                           SETPD    RVQ                                   
028983,000779: 35,3371           00023                                    18D                                   
028984,000780: 35,3372           65325        GOINT              PDDL     PDDL                                  #  DO
028985,000781: 35,3373           06524                                    ZEROVECS                              #        NOT
028986,000782: 35,3374           02317                                    NOMTPI                                
028987,000783: 35,3375           41406                           PUSH     PUSH                                  #                ORDER OR INSERT BEFORE INTINT
028988,000784: 35,3376           45020        INTINT             STQ      CALL                                  
028989,000785: 35,3377           03465                                    RTRN                                  
028990,000786: 35,3400           27410                                    INTSTALL                              
028991,000787: 35,3401           71214                           CLEAR    DLOAD                                 
028992,000788: 35,3402           01673                                    INTYPFLG                              
028993,000789: 35,3403           43054                           BZE      SET                                   
028994,000790: 35,3404           73406                                    +2                                    
028995,000791: 35,3405           01473                                    INTYPFLG                              
028996,000792: 35,3406           45545                           DLOAD    STADR                                 
028997,000793: 35,3407           63736                           STODL    TDEC1                                 
028998,000794: 35,3410           73014                           SET      LXA,2                                 
028999,000795: 35,3411           00063                                    MOONFLAG                              
029000,000796: 35,3412           02777                                    RTX2                                  
029001,000797: 35,3413           43014                           BON      CLEAR                                 
029002,000798: 35,3414           04303                                    CMOONFLG                              
029003,000799: 35,3415           73417                                    ALLSET                                
029004,000800: 35,3416           00263                                    MOONFLAG                              
029005,000801: 35,3417           25517        ALLSET             STOVL    TET                                   
029006,000802: 35,3420           77657                           VSR*                                           
029007,000803: 35,3421           57176                                    0,2                                   
029008,000804: 35,3422           25535                           STOVL    RCV                                   
029009,000805: 35,3423           77657                           VSR*                                           
029010,000806: 35,3424           57176                                    0,2                                   
029011,000807: 35,3425           35543                           STCALL   VCV                                   
029012,000808: 35,3426           27106                                    INTEGRVS                              
029013,000809: 35,3427           52175                           VLOAD    GOTO                                  
029014,000810: 35,3430           00001                                    RATT                                  
029015,000811: 35,3431           03465                                    RTRN                                  
029016,000812: 

Page 680

029018,000814:                                                                                                  #  ..... S34/35.5 .....
029019,000815: 
029020,000816:                                                                                                  #  SUBROUTINES USED
029021,000817:                                                                                                  #        BANKCALL
029022,000818:                                                                                                  #        GOFLASH
029023,000819:                                                                                                  #        GOTOPOOH
029024,000820:                                                                                                  #        S34/35.3
029025,000821:                                                                                                  #        S34/35.4
029026,000822:                                                                                                  #        VNPOOH
029027,000823: 
029028,000824: 35,3432           43020        S34/35.5           STQ      BON                                   
029029,000825: 35,3433           03470                                    SUBEXIT                               
029030,000826: 35,3434           01311                                    FINALFLG                              
029031,000827: 35,3435           73441                                    FLAGON                                
029032,000828: 35,3436           52014                           SET      GOTO                                  
029033,000829: 35,3437           00470                                    UPDATFLG                              
029034,000830: 35,3440           73505                                    FLAGOFF                               
029035,000831: 35,3441           77214        FLAGON             CLEAR    VLOAD                                 
029036,000832: 35,3442           03274                                    NTARGFLG                              
029037,000833: 35,3443           03434                                    DELVLVC                               
029038,000834: 35,3444           01236                           STORE    GDT/2                                 
029039,000835: 35,3445           77776                           EXIT                                           
029040,000836: 35,3446           33636                 +5        CAF      V06N81                                
029041,000837: 35,3447           04616                           TC       BANKCALL                              
029042,000838: 35,3450           20477                           CADR     GOFLASH                               
029043,000839: 35,3451           06001                           TC       GOTOPOOH                              
029044,000840: 35,3452           03454                           TC       +2                                    #  PRO
029045,000841: 35,3453           03446                           TC       FLAGON     +5                         #  LOAD
029046,000842: 35,3454           35016                 +2        CA       EBANK7                                
029047,000843: 35,3455           54003                           TS       EBANK                                 #  TO BE SURE
029048,000844: 
029049,000845: 35,3456           22007                           ZL                                             
029050,000846: 35,3457           34756                           CA       FIVE                                  
029051,000847: 35,3460           54002        NTARGCHK           TS       Q                                     
029052,000848: 35,3461           50002                           INDEX    Q                                     
029053,000849: 35,3462           41433                           CS       DELVLVC                               
029054,000850: 35,3463           50002                           INDEX    Q                                     
029055,000851: 35,3464           61235                           AD       GDT/2                                 
029056,000852: 35,3465           26001                           ADS      L                                     
029057,000853: 35,3466           10002                           CCS      Q                                     
029058,000854: 35,3467           13460                           TCF      NTARGCHK                              
029059,000855: 35,3470           22000                           LXCH     A                                     
029060,000856: 35,3471           00006                           EXTEND                                         
029061,000857: 35,3472           13475                           BZF      +3                                    
029062,000858: 35,3473           05504                           TC       UPFLAG                                
029063,000859: 35,3474           00146                           ADRES    NTARGFLG                              
029064,000860: 
029065,000861: 35,3475           06042                           TC       INTPRET                               
029066,000862: 35,3476           45014                           BOFF     CALL                                  
029067,000863: 35,3477           03354                                    NTARGFLG                              

Page 681

029069,000865: 35,3500           73502                                    NOCHG                                 
029070,000866: 35,3501           73307                                    S34/35.3                              
029071,000867: 35,3502           77775        NOCHG              VLOAD                                          
029072,000868: 35,3503           02366                                    DELVEET3                              
029073,000869: 35,3504           03656                           STORE    DELVSIN                               
029074,000870: 35,3505           77624        FLAGOFF            CALL                                           
029075,000871: 35,3506           73352                                    S34/35.4                              
029076,000872: 35,3507           77776                           EXIT                                           
029077,000873: 35,3510           33635                           CAF      V06N59                                
029078,000874: 35,3511           03621                           TC       VNPOOH                                
029079,000875: 35,3512           06042                           TC       INTPRET                               
029080,000876: 35,3513           77650                           GOTO                                           
029081,000877: 35,3514           03470                                    SUBEXIT                               
029082,000878: 

Page 682

029084,000880:                                                                                                  #  ..... VN1645 .....
029085,000881: 
029086,000882:                                                                                                  #  SUBROUTINES USED
029087,000883:                                                                                                  #        P3XORP7X
029088,000884:                                                                                                  #        GET+MGA
029089,000885:                                                                                                  #        BANKCALL
029090,000886:                                                                                                  #        DELAYJOB
029091,000887:                                                                                                  #        COMPTGO
029092,000888:                                                                                                  #        GOFLASHR
029093,000889:                                                                                                  #        GOTOPOOH
029094,000890:                                                                                                  #        FLAGUP
029095,000891: 
029096,000892: 35,3515           71220        VN1645             STQ      DLOAD                                 
029097,000893: 35,3516           03470                                    SUBEXIT                               
029098,000894: 35,3517           33651                                    DP-.01                                
029099,000895: 35,3520           02253                           STORE    +MGA                                  #  MGA = -.01
029100,000896: 35,3521           71214                           BOFF     DLOAD                                 
029101,000897: 35,3522           01351                                    FINALFLG                              
029102,000898: 35,3523           73543                                    GET45                                 
029103,000899: 35,3524           33651                                    DP-.01                                
029104,000900: 35,3525           77615                           DAD                                            
029105,000901: 35,3526           33651                                    DP-.01                                
029106,000902: 35,3527           02253                           STORE    +MGA                                  #  MGA = -.02
029107,000903: 35,3530           77414                           BOFF     EXIT                                  
029108,000904: 35,3531           01742                                    REFSMFLG                              
029109,000905: 35,3532           73543                                    GET45                                 
029110,000906: 35,3533           03613                           TC       P3XORP7X                              
029111,000907: 35,3534           03536                           TC       +2                                    #  P3X
029112,000908: 35,3535           03544                           TC       GET45      +1                         #  P7X
029113,000909: 35,3536           06042                           TC       INTPRET                               
029114,000910: 35,3537           41575                           VLOAD    PUSH                                  
029115,000911: 35,3540           03656                                    DELVSIN                               
029116,000912: 35,3541           77624                           CALL                                           #  COMPUTE MGA
029117,000913: 35,3542           15725                                    GET+MGA                               
029118,000914: 35,3543           77776        GET45              EXIT                                           
029119,000915: 35,3544           02437                           TC       COMPTGO                               #  INITIATE TASK TO UPDATE TTOGO
029120,000916: 35,3545           31470                           CA       SUBEXIT                               
029121,000917: 35,3546           55464                           TS       QSAVED                                
029122,000918: 35,3547           34777                           CAF      1SEC                                  
029123,000919: 35,3550           04616                           TC       BANKCALL                              
029124,000920: 35,3551           01736                           CADR     DELAYJOB                              
029125,000921: 35,3552           33637                           CAF      V16N45                                #  TRKMKCNT, TTOGO, +MGA
029126,000922: 35,3553           04616                           TC       BANKCALL                              
029127,000923: 35,3554           20477                           CADR     GOFLASH                               
029128,000924: 35,3555           03560                           TC       KILCLOCK                              #  TERMINATE
029129,000925: 35,3556           03563                           TC       N45PROC                               #  PROCEED
029130,000926: 35,3557           03573                           TC       CLUPDATE                              #  RECYCLE - RETURN FOR INITIAL COMPUTATION
029131,000927: 35,3560           30005        KILCLOCK           CA       Z                                     
029132,000928: 35,3561           55162                           TS       DISPDEX                               

Page 683

029134,000930: 35,3562           06001                           TC       GOTOPOOH                              
029135,000931: 35,3563           40076        N45PROC            CS       FLAGWRD2                              
029136,000932: 35,3564           74746                           MASK     BIT6                                  
029137,000933: 35,3565           00006                           EXTEND                                         
029138,000934: 35,3566           13560                           BZF      KILCLOCK                              #  FINALFLG IS SET - FLASH V37 - AWAIT NEW PGM
029139,000935: 35,3567           05353                           TC       PHASCHNG                              
029140,000936: 35,3570           04024                           OCT      04024                                 
029141,000937: 35,3571           05504                           TC       UPFLAG                                #  SET
029142,000938: 35,3572           00047                           ADRES    FINALFLG                              #  FINALFLG
029143,000939: 35,3573           30005        CLUPDATE           CA       Z                                     
029144,000940: 35,3574           55162                           TS       DISPDEX                               
029145,000941: 35,3575           05353                           TC       PHASCHNG                              
029146,000942: 35,3576           04024                           OCT      04024                                 
029147,000943: 35,3577           06042                           TC       INTPRET                               
029148,000944: 35,3600           52014                           CLEAR    GOTO                                  
029149,000945: 35,3601           00670                                    UPDATFLG                              
029150,000946: 35,3602           03464                                    QSAVED                                
029151,000947: 

Page 684

029153,000949:                                                                                                  #  ..... DISPLAYE .....
029154,000950: 
029155,000951:                                                                                                  #  SUBROUTINES USED
029156,000952:                                                                                                  #        BANKCALL
029157,000953:                                                                                                  #        GOFLASHR
029158,000954:                                                                                                  #        GOTOPOOH
029159,000955:                                                                                                  #        BLANKET
029160,000956:                                                                                                  #        ENDOFJOB
029161,000957: 
029162,000958: 35,3603           00006        DISPLAYE           EXTEND                                         
029163,000959: 35,3604           23463                           QXCH     NORMEX                                
029164,000960: 35,3605           33633                           CAF      V06N55                                
029165,000961: 35,3606           04616                           TCR      BANKCALL                              
029166,000962: 35,3607           20477                           CADR     GOFLASH                               
029167,000963: 35,3610           16001                           TCF      GOTOPOOH                              
029168,000964: 35,3611           01463                           TC       NORMEX                                
029169,000965: 35,3612           13605                           TCF      -5                                    
029170,000966: 

Page 685

029172,000968:                                                                                                  #  ..... P3XORP7X .....
029173,000969: 
029174,000970: 35,3613           37747        P3XORP7X           CAF      HIGH9                                 
029175,000971: 35,3614           71010                           MASK     MODREG                                
029176,000972: 35,3615           00006                           EXTEND                                         
029177,000973: 35,3616           13620                           BZF      +2                                    
029178,000974: 35,3617           24002                           INCR     Q                                     
029179,000975: 35,3620           00002                           RETURN                                         
029180,000976: 
029181,000977:                                                                                                  #  ..... VNPOOH .....
029182,000978: 
029183,000979:                                                                                                  #  SUBROUTINES USED
029184,000980:                                                                                                  #        BANKCALL
029185,000981:                                                                                                  #        GOFLASH
029186,000982:                                                                                                  #        GOTOPOOH
029187,000983: 
029188,000984: 35,3621           00006        VNPOOH             EXTEND                                         
029189,000985: 35,3622           23465                           QXCH     RTRN                                  
029190,000986: 35,3623           55615                           TS       VERBNOUN                              
029191,000987: 35,3624           31615                           CA       VERBNOUN                              
029192,000988: 35,3625           04616                           TCR      BANKCALL                              
029193,000989: 35,3626           20477                           CADR     GOFLASH                               
029194,000990: 35,3627           16001                           TCF      GOTOPOOH                              
029195,000991: 35,3630           01465                           TC       RTRN                                  
029196,000992: 35,3631           13624                           TCF      -5                                    
029197,000993: 

Page 686

029199,000995:                                                                                                  #  ..... CONSTANTS .....
029200,000996: 
029201,000997: 35,3632           01445        V06N37             VN       0637                                  
029202,000998: 35,3633           01467        V06N55             VN       0655                                  
029203,000999: 35,3634           01472        V06N58             VN       0658                                  
029204,001000: 35,3635           01473        V06N59             VN       0659                                  
029205,001001: 35,3636           01521        V06N81             VN       0681                                  
029206,001002: 35,3637           04055        V16N45             VN       1645                                  
029207,001003: 35,3640           14441 37325  TWOPI              2DEC     6.283185307 B-4                        
029208,001004: 35,3642           00001 20650  MAX250             2DEC     25         E3                         
029209,001005: 35,3644           12525 12525  THIRD              2DEC     .333333333                            
029210,001006: 35,3646           00004 21505  ELEPS              2DEC     .27777777  E-3                        
029211,001007: 35,3650           77777        DP-.01             OCT      77777                                 #  CONSTANTS
029212,001008: 35,3651           61337                           OCT      61337                                 #  ADJACENT      -.01 FOR MGA DSP
029213,001009: 35,3652           01252 25253  EPSFOUR            2DEC     .0416666666                            
029214,001010: 35,3654           13434 16162  130DEG             2DEC     .3611111111                            
029215,001011: 

Page 687

029217,001013:                                                                                                  #  ..... INITVEL .....
029218,001014:                                                                                                  #  MOD NO -1                     LOG SECTION - P34-P35, P74-P75
029219,001015:                                                                                                  #  MOD BY WHITE.P                DATE   21 NOV 67
029220,001016: 
029221,001017:                                                                                                  #  FUNCTIONAL DESCRIPTION
029222,001018:                                                                                                  #        THIS SUBROUTINE COMPUTES THE REQUIRED INITIAL VELOCITY VECTOR FOR
029223,001019:                                                                                                  #        A TRAJECTORY OF SPECIFIED TRANSFER TIME BETWEEN SPECIFIED INITIAL
029224,001020:                                                                                                  #        AND TARGET POSITIONS.  THE TRAJECTORY MAY BE EITHER CONIC OR
029225,001021:                                                                                                  #        PRECISION DEPENDING ON AN INPUT PARAMETER (NAMELY, NUMBER OF
029226,001022:                                                                                                  #        OFFSETS).  IN ADDITION, IN TH EPRECISION TRAJECTORY CASE, THE
029227,001023:                                                                                                  #        SUBROUTINE ALSO COMPUTES AN OFFSET TARGET VECTOR, TO BE USED
029228,001024:                                                                                                  #        DURING PURE-CONIC CROSS-PRODUCT STEERING.  THE OFFSET TARGET
029229,001025:                                                                                                  #        VECTOR IS THE TERMINAL POSITION VECTOR OF A CONIC TRAJECTORY WHICH
029230,001026:                                                                                                  #        HAS THE SAME INITIAL STATE AS A PRECISION TRAJECTORY WHOSE
029231,001027:                                                                                                  #        TERMINAL POSITION VECTOR IS THE SPECIFIED TARGET VECTOR.
029232,001028: 
029233,001029:                                                                                                  #        IN ORDER TO AVOID THE INHERENT SINGULARITIES IN THE 180 DEGREE
029234,001030:                                                                                                  #        TRANSFER CASE WHEN THE (TRUE OR OFFSET) TARGET VECTOR MAY BE
029235,001031:                                                                                                  #        SLIGHTLYOUT OF THE ORBITAL PLANE, THIS SUBROUTINE ROTATES THIS
029236,001032:                                                                                                  #        VECTOR INTO A PLANE DEFINED BY THE INPUT INITIAL POSITION VECTOR
029237,001033:                                                                                                  #        AND ANOTHER INPUT VECTOR (USUALLY THE INITIAL VELOCITY VECTOR),
029238,001034:                                                                                                  #        WHENEVER THE INPUT TARGET VECTOR LIES INSIDE A CONE WHOSE VERTEX
029239,001035:                                                                                                  #        IS THE ORIGIN OF COORDINATES, WHOSE AXIS IS THE 180 DEGREE
029240,001036:                                                                                                  #        TRANSFER DIRECTION, AND WHOSE CONE ANGLE IS SPECIFIED BY THE USER.
029241,001037: 
029242,001038:                                                                                                  #        THE LAMBERT SUBROUTINE IS UTILIZED FOR THE CONIC COMPUTATIONS AND
029243,001039:                                                                                                  #        THE COASTING INTEGRATION SUBROUTINE IS UTILIZED FOR THE PRECISION
029244,001040:                                                                                                  #        TRAJECTORY COMPUTATIONS.
029245,001041: 
029246,001042:                                                                                                  #  CALLING SEQUENCE
029247,001043:                                                                                                  #        L       CALL
029248,001044:                                                                                                  #        L+1             INITVEL
029249,001045:                                                                                                  #        L+2     (RETURN - ALWAYS)
029250,001046: 
029251,001047:                                                                                                  #  INPUT
029252,001048:                                                                                                  #        (1)     RINIT           INITIAL POSITION RADIUS VECTOR
029253,001049:                                                                                                  #        (2)     VINIT           INITIAL POSITION VELOCITY VECTOR
029254,001050:                                                                                                  #        (3)     RTARG           TARGET POSITION RADIUS VECTOR
029255,001051:                                                                                                  #        (4)     DELLT4          DESIRED TIME OF FLIGHT FROM RINIT TO RTARG
029256,001052:                                                                                                  #        (5)     INTIME          TIME OF RINIT
029257,001053:                                                                                                  #        (6)     0D              NUMBER OF ITERATIONS OF LAMBERT/INTEGRVS
029258,001054:                                                                                                  #        (7)     2D              ANGLE TO 180 DEGREES WHEN ROTATION STARTS
029259,001055:                                                                                                  #        (8)     RTX1            -2 FOR EARTH, -10D FOR LUNAR
029260,001056:                                                                                                  #        (9)     RTX2            COORDINATE SYSTEM ORIGIN - 0 FOR EARTH, 2 FOR LUNAR
029261,001057:                                                                                                  #        PUSHLOC SET AT 4D
029262,001058: 

Page 688

029264,001060:                                                                                                  #  OUTPUT
029265,001061:                                                                                                  #        (1)     RTARG           OFFSET TARGET POSITION VECTOR
029266,001062:                                                                                                  #        (2)     VIPRIME         MANEUVER VELOCITY REQUIRED
029267,001063:                                                                                                  #        (3)     VTPRIME         VELOCITY AT TARGET AFTER MANEUVER
029268,001064:                                                                                                  #        (4)     DELVEET3        DELTA VELOCITY REQUIRED FOR MANEUVER
029269,001065: 
029270,001066:                                                                                                  #  SUBROUTINES USED
029271,001067:                                                                                                  #        LAMBERT
029272,001068:                                                                                                  #        INTSTALL
029273,001069:                                                                                                  #        INTEGRVS
029274,001070: 
029275,001071: 11,2000                                           SETLOC   INTVEL                                
029276,001072: 11,2000                                           BANK                                           
029277,001073: 
029278,001074: 11,2000                                           COUNT*   $$/INITV                              
029279,001075: 11,2000           77614        INITVEL            SET                                            #  COGA GUESS NOT AVAILABLE
029280,001076: 11,2001           00475                                    GUESSW                                
029281,001077: 11,2002           44175        HAVEGUES           VLOAD    STQ                                   
029282,001078: 11,2003           03444                                    RTARG                                 
029283,001079: 11,2004           03463                                    NORMEX                                
029284,001080: 11,2005           03472                           STORE    RTARG1                                
029285,001081: 11,2006           77646                           ABVAL                                          
029286,001082: 11,2007           03723                           STORE    RTMAG                                 
029287,001083: 11,2010           46135                           SLOAD    BHIZ                                  
029288,001084: 11,2011           03000                                    RTX2                                  
029289,001085: 11,2012           22026                                    INITVEL1                              
029290,001086: 11,2013           72575                           VLOAD    VSL2                                  
029291,001087: 11,2014           02323                                    RINIT                                 #  B29
029292,001088: 11,2015           26323                           STOVL    RINIT                                 #  B27
029293,001089: 11,2016           02331                                    VINIT                                 #  B7
029294,001090: 11,2017           77752                           VSL2                                           
029295,001091: 11,2020           26331                           STOVL    VINIT                                 #  B5
029296,001092: 11,2021           03472                                    RTARG1                                
029297,001093: 11,2022           77752                           VSL2                                           
029298,001094: 11,2023           03472                           STORE    RTARG1                                
029299,001095: 11,2024           77646                           ABVAL                                          
029300,001096: 11,2025           03723                           STORE    RTMAG                                 
029301,001097: 
029302,001098:                                                                                                  #  INITIALIZATION
029303,001099: 
029304,001100: 11,2026           71331        INITVEL1           SSP      DLOAD                                 #  SET ITCTR TO -1,LOAD MPAC WITH E4 (PL 2D)
029305,001101: 11,2027           03617                                    ITCTR                                 
029306,001102: 11,2030           77776                                    0          -1                         
029307,001103: 11,2031           70546                           COSINE   SR1                                   #  CALCULATE COSINE (E4) (+2)
029308,001104: 11,2032           17667                           STODL    COZY4                                 #  SET COZY4 TO COSINE (E4) (PL 0D)
029309,001105: 11,2033           67154                           LXA,2    SXA,2                                 
029310,001106: 11,2034           00154                                    MPAC                                  
029311,001107: 11,2035           02701                                    VTARGTAG                              #  SET VTARGTAG TO 0D (SP)
029312,001108: 11,2036           77775                           VLOAD                                          

Page 689

029314,001110: 11,2037           02323                                    RINIT                                 
029315,001111: 11,2040           26655                           STOVL    R1VEC                                 #  R1VEC EQ RINIT
029316,001112: 11,2041           03472                                    RTARG1                                
029317,001113: 11,2042           16663                           STODL    R2VEC                                 #  R2VEC EQ RTARG
029318,001114: 11,2043           03452                                    DELLT4                                
029319,001115: 11,2044           02671                           STORE    TDESIRED                              #  TDESIRED EQ DELLT4
029320,001116: 11,2045           77201                           SETPD    VLOAD                                 
029321,001117: 11,2046           00001                                    0D                                    #  INITIALIZE PL TO 0D
029322,001118: 11,2047           02323                                    RINIT                                 #  MPAC EQ RINIT (+29)
029323,001119: 11,2050           41456                           UNIT     PUSH                                  #  UNIT(RI) (+1)         (PL 6D)
029324,001120: 11,2051           53435                           VXV      UNIT                                  
029325,001121: 11,2052           02331                                    VINIT                                 #  MPAC EQ UNIT(RI) X VI (+8)
029326,001122: 11,2053           26674                           STOVL    UN                                    
029327,001123: 11,2054           03472                                    RTARG1                                
029328,001124: 11,2055           50256                           UNIT     DOT                                   #  TEMP=URT.URI (+2)     (PL 0D)
029329,001125: 11,2056           43015                           DAD      CLEAR                                 
029330,001126: 11,2057           03667                                    COZY4                                 
029331,001127: 11,2060           03665                                    NORMSW                                
029332,001128: 11,2061           03667                           STORE    COZY4                                 
029333,001129: 11,2062           43044        INITVEL2           BPL      SET                                   
029334,001130: 11,2063           22105                                    INITVEL3                              #  UN CALCULATED IN LAMBERT
029335,001131: 11,2064           03465                                    NORMSW                                
029336,001132: 
029337,001133:                                                                                                  #  ROTATE RC INTO YC PLANE - SET UNIT NORMAL TO YC
029338,001134: 
029339,001135: 11,2065           41575                           VLOAD    PUSH                                  #                (PL 6D)
029340,001136: 11,2066           02663                                    R2VEC                                 #  RC TO 6D (+29)
029341,001137: 11,2067           63246                           ABVAL    PDVL                                  #  RC TO MPAC, ABVAL(RC) (+29) TO OD(PL 2D)
029342,001138: 11,2070           46206                           PUSH     VPROJ                                 #                (PL 8D)
029343,001139: 11,2071           02674                                    UN                                    
029344,001140: 11,2072           51352                           VSL2     BVSU                                  
029345,001141: 11,2073           74256                           UNIT     VXSC                                  #                (PL 0D)
029346,001142: 11,2074           77772                           VSL1                                           
029347,001143: 11,2075           02663                           STORE    R2VEC                                 
029348,001144: 11,2076           67351                           TLOAD    SLOAD                                 
029349,001145: 11,2077           24007                                    ZEROVEC                               
029350,001146: 11,2100           03617                                    ITCTR                                 
029351,001147: 11,2101           77244                           BPL      VLOAD                                 
029352,001148: 11,2102           22105                                    INITVEL3                              
029353,001149: 11,2103           02663                                    R2VEC                                 
029354,001150: 11,2104           03472                           STORE    RTARG1                                
029355,001151: 11,2105           63345        INITVEL3           DLOAD    PDVL                                  #                                (PL 2D)
029356,001152: 11,2106           26007                                    MUEARTH                               #  POSITIVE VALUE
029357,001153: 11,2107           02663                                    R2VEC                                 
029358,001154: 11,2110           63256                           UNIT     PDVL                                  #  2D = UNIT(R2VEC)              (PL 8D)
029359,001155: 11,2111           02655                                    R1VEC                                 
029360,001156: 11,2112           41456                           UNIT     PUSH                                  #  8D = UNIT(R1VEC)              (PL 14D)
029361,001157: 11,2113           57435                           VXV      VCOMP                                 #  -N = UNIT(R2VEC) X UNIT(R1VEC)
029362,001158: 11,2114           00003                                    2D                                    
029363,001159: 11,2115           77606                           PUSH                                           #                                (PL 20D)
029364,001160: 11,2116           71350                           LXA,1    DLOAD                                 

Page 690

029366,001162: 11,2117           02776                                    RTX1                                  
029367,001163: 11,2120           00023                                    18D                                   
029368,001164: 11,2121           62040                           BMN      INCR,1                                
029369,001165: 11,2122           22124                                    +2                                    
029370,001166: 11,2123           77767                           DEC      -8         B-14                       
029371,001167: 11,2124           67310                           INCR,1   SLOAD                                 
029372,001168: 11,2125           00012                                    10D                                   
029373,001169: 11,2126           00047                                    X1                                    
029374,001170: 11,2127           77230                           BHIZ     VLOAD                                 #                        (PL 14D)
029375,001171: 11,2130           22132                                    +2                                    
029376,001172: 11,2131           41476                           VCOMP    PUSH                                  #                        (PL 20 D)
029377,001173: 11,2132           77775                           VLOAD                                          #                        (PL 14D)
029378,001174: 11,2133           50235                           VXV      DOT                                   #                        (PL 2D)
029379,001175: 11,2134           71244                           BPL      DLOAD                                 #                        (PL 0D)
029380,001176: 11,2135           22137                                    INITVEL4                              
029381,001177: 11,2136           41476                           DCOMP    PUSH                                  #                        (PL 2D)
029382,001178: 11,2137           67154        INITVEL4           LXA,2    SXA,2                                 
029383,001179: 11,2140           00000                                    0D                                    
029384,001180: 11,2141           02672                                    GEOMSGN                               
029385,001181: 
029386,001182:                                                                                                  #  SET INPUTS UP FOR LAMBERT
029387,001183: 
029388,001184: 11,2142           66350                           LXA,1    SSP                                   
029389,001185: 11,2143           02776                                    RTX1                                  
029390,001186: 11,2144           00027                                    ITERCTR                               
029391,001187: 11,2145           00024                                    20D                                   
029392,001188: 
029393,001189:                                                                                                  #   OPERATE THE LAMBERT CONIC ROUTINE (COASTFLT SUBROUTINE)
029394,001190: 
029395,001191: 11,2146           77624                           CALL                                           
029396,001192: 11,2147           25212                                    LAMBERT                               
029397,001193: 
029398,001194:                                                                                                  #  ARRIVED AT SOLUTION IS GOOD ENOUGH ACCORDING TO SLIGHTLY WIDER BOUNDS.
029399,001195: 
029400,001196: 11,2150           77214                           CLEAR    VLOAD                                 
029401,001197: 11,2151           00675                                    GUESSW                                
029402,001198: 11,2152           02744                                    VVEC                                  
029403,001199: 
029404,001200:                                                                                                  #  STORE CALCULATED INITIAL VELOCITY REQUIRED IN VIPRIME
029405,001201: 
029406,001202: 11,2153           16337                           STODL    VIPRIME                               #  INITIAL VELOCITY REQUIRED (+7)
029407,001203: 
029408,001204:                                                                                                  #  IF NUMIT IS ZERO, CONTINUE AT INITVELB, OTHERWISE
029409,001205:                                                                                                  #  SET UP INPUTS FOR ENCKE INTEGRATION (INTEGRVS).
029410,001206: 
029411,001207: 11,2154           02702                                    VTARGTAG                              
029412,001208: 11,2155           45030                           BHIZ     CALL                                  
029413,001209: 11,2156           22233                                    INITVEL7                              
029414,001210: 11,2157           27410                                    INTSTALL                              
029415,001211: 11,2160           43135                           SLOAD    CLEAR                                 
029416,001212: 11,2161           03000                                    RTX2                                  
029417,001213: 11,2162           00263                                    MOONFLAG                              
029418,001214: 11,2163           43030                           BHIZ     SET                                   

Page 691

029420,001216: 11,2164           22166                                    INITVEL5                              
029421,001217: 11,2165           00063                                    MOONFLAG                              
029422,001218: 11,2166           77775        INITVEL5           VLOAD                                          
029423,001219: 11,2167           02323                                    RINIT                                 
029424,001220: 11,2170           02655                           STORE    R1VEC                                 
029425,001221: 11,2171           25535                           STOVL    RCV                                   
029426,001222: 11,2172           02337                                    VIPRIME                               
029427,001223: 11,2173           15543                           STODL    VCV                                   
029428,001224: 11,2174           03610                                    INTIME                                
029429,001225: 11,2175           01517                           STORE    TET                                   
029430,001226: 11,2176           43015                           DAD      CLEAR                                 
029431,001227: 11,2177           03452                                    DELLT4                                
029432,001228: 11,2200           01673                                    INTYPFLG                              
029433,001229: 11,2201           34041                           STCALL   TDEC1                                 
029434,001230: 11,2202           27106                                    INTEGRVS                              
029435,001231: 11,2203           77775                           VLOAD                                          
029436,001232: 11,2204           00025                                    VATT1                                 
029437,001233: 11,2205           02703                           STORE    VTARGET                               
029438,001234: 
029439,001235:                                                                                                  #  IF ITERATION COUNTER (ITCTR) EQ NO. ITERATIONS (NUMIT), CONTINUE AT
029440,001236:                                                                                                  #  INITVELC, OTHERWISE REITERATE LAMBERT AND ENCKE
029441,001237: 
029442,001238: 11,2206           63154                           LXA,2    INCR,2                                
029443,001239: 11,2207           03616                                    ITCTR                                 
029444,001240: 11,2210           00001                                    1D                                    #  INCREMENT ITCTR
029445,001241: 11,2211           55134                           SXA,2    XSU,2                                 
029446,001242: 11,2212           03616                                    ITCTR                                 
029447,001243: 11,2213           02701                                    VTARGTAG                              
029448,001244: 11,2214           46135                           SLOAD    BHIZ                                  #  IF SP(MPAC) EQ 0, CONTINUE AT INITVELC
029449,001245: 11,2215           00050                                    X2                                    
029450,001246: 11,2216           22230                                    INITVEL6                              
029451,001247: 
029452,001248:                                                                                                  #  OFFSET CONIC TARGET VECTOR
029453,001249: 
029454,001250: 11,2217           52375                           VLOAD    VSU                                   
029455,001251: 11,2220           03472                                    RTARG1                                
029456,001252: 11,2221           00017                                    RATT1                                 
029457,001253: 11,2222           77655                           VAD                                            
029458,001254: 11,2223           02663                                    R2VEC                                 
029459,001255: 11,2224           16663                           STODL    R2VEC                                 
029460,001256: 11,2225           03667                                    COZY4                                 
029461,001257: 11,2226           77650                           GOTO                                           
029462,001258: 11,2227           22062                                    INITVEL2                              #  CONTINUE ITERATING AT INITVEL2
029463,001259: 
029464,001260:                                                                                                  #  COMPUTE THE DELTA VELOCITY
029465,001261: 
029466,001262: 11,2230           77775        INITVEL6           VLOAD                                          
029467,001263: 11,2231           02663                                    R2VEC                                 
029468,001264: 11,2232           03472                           STORE    RTARG1                                
029469,001265: 11,2233           52375        INITVEL7           VLOAD    VSU                                   
029470,001266: 11,2234           02337                                    VIPRIME                               
029471,001267: 11,2235           02331                                    VINIT                                 

Page 692

029473,001269: 11,2236           26366                           STOVL    DELVEET3                              #  DELVEET3 = VIPRIME-VINIT (+7)
029474,001270: 11,2237           02703                                    VTARGET                               
029475,001271: 11,2240           03566                           STORE    VTPRIME                               
029476,001272: 11,2241           46135                           SLOAD    BHIZ                                  
029477,001273: 11,2242           03000                                    RTX2                                  
029478,001274: 11,2243           22260                                    INITVELX                              
029479,001275: 11,2244           70575                           VLOAD    VSR2                                  
029480,001276: 11,2245           03566                                    VTPRIME                               
029481,001277: 11,2246           27566                           STOVL    VTPRIME                               
029482,001278: 11,2247           02337                                    VIPRIME                               
029483,001279: 11,2250           77742                           VSR2                                           
029484,001280: 11,2251           26337                           STOVL    VIPRIME                               
029485,001281: 11,2252           03472                                    RTARG1                                
029486,001282: 11,2253           77742                           VSR2                                           
029487,001283: 11,2254           27472                           STOVL    RTARG1                                
029488,001284: 11,2255           02366                                    DELVEET3                              
029489,001285: 11,2256           77742                           VSR2                                           
029490,001286: 11,2257           02366                           STORE    DELVEET3                              
029491,001287: 11,2260           70750        INITVELX           LXA,1    DLOAD*                                
029492,001288: 11,2261           02776                                    RTX1                                  
029493,001289: 11,2262           10003                                    MUTABLE    -2,1                       
029494,001290: 11,2263           41206                           PUSH     DMP                                   
029495,001291: 11,2264           02742                                    R1A                                   
029496,001292: 11,2265           56342                           SR1      DDV                                   
029497,001293: 11,2266           00041                                    R1                                    
029498,001294: 11,2267           17721                           STODL    MU/A                                  
029499,001295: 11,2270           77661                           SR                                             
029500,001296: 11,2271           20607                                    6                                     
029501,001297: 11,2272           03717                           STORE    MUASTEER                              
029502,001298: 11,2273           77201                           SETPD    VLOAD                                 
029503,001299: 11,2274           00001                                    0D                                    
029504,001300: 11,2275           03472                                    RTARG1                                
029505,001301: 11,2276           03444                           STORE    RTARG                                 
029506,001302: 11,2277           52014                           CLEAR    GOTO                                  
029507,001303: 11,2300           01267                                    XDELVFLG                              
029508,001304: 11,2301           03463                                    NORMEX                                
029509,001305: 
029510,001306:                                                                                                  #  ..... END OF INITVEL ROUTINE .....
029511,001307: 

Page 693

029513,001309:                                                                                                  #  ..... MIDGIM .....
029514,001310:                                                                                                  #  MOD NO. 0, BY WILLMAN, SUBROUTINE RENDGUID, LOG P34-P35, P74-P75
029515,001311:                                                                                                  #  REVISION 03, 17 FEB 67
029516,001312: 
029517,001313:                                                                                                  #  IF THE ACTIVE VEHICLE IS DOING THE COMPUTATION, MIDGIM COMPUTES
029518,001314:                                                                                                  #  THE POSITIVE MIDDLE GIMBAL ANGLE OF THE ACTIVE VEHICLE TO THE INPUT
029519,001315:                                                                                                  #  DELTA VELOCITY VECTOR (0D IN PUSH LIST), OTHERWISE
029520,001316:                                                                                                  #  MIDGIM CONVERTS THE INPUT DELTA VELOCITY VECTOR FROM INERTIAL COORDIN-
029521,001317:                                                                                                  #  ATES TO LOCAL VERTICAL COORDINATES OF THE ACTIVE VEHICLE.
029522,001318: 
029523,001319:                                                                                                  #  .. INPUTS ..
029524,001320:                                                                                                  #        NAME    MEANING                                         UNITS/SCALING/MODE
029525,001321:                                                                                                  #        AVFLAG  INT FLAG - 0 IS CSM ACTIVE, 1 IS LEM ACTIVE     BIT
029526,001322:                                                                                                  #        RINIT   ACTIVE VEHICLE RADIUS VECTOR                    METERS/CSEC (+7) VT
029527,001323:                                                                                                  #        VINIT   ACTIVE VEHICLE VELOCITY VECTOR                  METERS/CSEC (+7) VT
029528,001324:                                                                                                  #        0D(PL)  ACTIVE VEHICLE DELTA VELOCITY VECTOR            METERS/CSEC (+7) VT
029529,001325: 
029530,001326:                                                                                                  #  .. OUTPUTS ..
029531,001327:                                                                                                  #     NAME       MEANING                                         UNITS/SCALING/MODE
029532,001328:                                                                                                  #     +MGA       + MIDDLE GIMBAL ANGLE                           REVOLUTIONS (+0) DP
029533,001329:                                                                                                  #     DELVLVC    DELTA VELOCITY VECTOR IN LV COORD.              METERS/CSEC (+7) VT
029534,001330:                                                                                                  #     MGLVFLAG   INT FLAG - 0 IS +MGA COMPUTED, 1 IS DELVLVC COMP.   -   BIT
029535,001331: 
029536,001332:                                                                                                  #  .. CALLING SEQUENCE ..
029537,001333:                                                                                                  #        L       CALL
029538,001334:                                                                                                  #        L+1             MIDGIM
029539,001335:                                                                                                  #        L+2     (RETURN - ALWAYS)
029540,001336: 
029541,001337:                                                                                                  #  .. NO SUBROUTINES CALLED ..
029542,001338: 
029543,001339:                                                                                                  #  .. DEBRIS - ERASEABLE TEMPORARY USAGE
029544,001340:                                                                                                  #        A,Q,L, PUSH LIST, MPAC.
029545,001341: 
029546,001342:                                                                                                  #  .. ALARMS - NONE ..
029547,001343: 

Page 694

029549,001345:                                                                                                  #  MIDDLE GIMBAL ANGLE COMPUTATION.
029550,001346: 
029551,001347: 06,2000                                           SETLOC   MIDDGIM                               
029552,001348: 06,2000                                           BANK                                           
029553,001349: 
029554,001350: 06,3723                                           COUNT*   $$/MIDG                               
029555,001351: 
029556,001352: 06,3723           20000 00000  HALFREV            2DEC     1          B-1                        
029557,001353: 
029558,001354: 06,3725           53575        GET+MGA            VLOAD    UNIT                                  #  (PL 0D) V (+7) TO MPAC, UNITIZE UV (+1)
029559,001355: 06,3726           77656                           UNIT                                           
029560,001356: 06,3727           72441                           DOT      SL1                                   #  DOT UV WITH Y(STABLE MEMBER) AND RESCALE
029561,001357: 06,3730           01742                                    REFSMMAT   +6                         #  FROM +2 TO +1 FOR ASIN ROUTINE
029562,001358: 06,3731           51136                           ARCSIN   BPL                                   
029563,001359: 06,3732           15736                                    SETMGA                                
029564,001360: 06,3733           43215                           DAD      DAD                                   #  CONVERT -MGA TO +MGA BY
029565,001361: 06,3734           15724                                    HALFREV                               #  ADDING ONE REVOLUTION
029566,001362: 06,3735           15724                                    HALFREV                               
029567,001363: 06,3736           02253        SETMGA             STORE    +MGA                                  
029568,001364: 06,3737           43414                           CLR      RVQ                                   #  CLEAR MGLVFLAG TO INDICATE +MGA CALC
029569,001365: 06,3740           02675                                    MGLVFLAG                              #  AND EXIT
029570,001366: 06,3741           53575        GET.LVC            VLOAD    UNIT                                  #  (PL 6D) R (+29) IN MPAC, UNITIZE UR
029571,001367: 06,3742           02323                                    RINIT                                 
029572,001368: 06,3743           77676                           VCOMP                                          #  U(-R)
029573,001369: 06,3744           00023                           STORE    18D                                   #  U(-R) TO 18D
029574,001370: 06,3745           53435                           VXV      UNIT                                  #  U(-R)*V EQ V*U(R), U(V*R)
029575,001371: 06,3746           02331                                    VINIT                                 
029576,001372: 06,3747           00015                           STORE    12D                                   #  U(V*R) TO 12D
029577,001373: 06,3750           53435                           VXV      UNIT                                  #  U(V*R)*U(-R), U((V*R)*(-R))
029578,001374: 06,3751           00023                                    18D                                   
029579,001375: 06,3752           24007                           STOVL    6D                                    #  TRANSFORMATION MATRIX IS IN 6D (+1)
029580,001376: 06,3753           00001                                    0D                                    #  DELTA V (+7) IN 0D
029581,001377: 06,3754           76521                           MXV      VSL1                                  #  CONVERT FROM INER COOR TO LV COOR (+8)
029582,001378: 06,3755           00007                                    6D                                    #  AND SCALE +7 IN MPAC
029583,001379: 06,3756           03434                           STORE    DELVLVC                               #  STORE IN DELVLVC (+7)
029584,001380: 06,3757           43414                           SET      RVQ                                   #  SET MGLVFLAG TO INDICATE LVC CALC
029585,001381: 06,3760           02475                                    MGLVFLAG                              #  AND EXIT
029586,001382: 
029587,001383:                                                                                                  #  ..... END OF MIDGIM ROUTINE .....
029588,001384: 

Page 695

029590,001386: 10,2000                                           BANK     10                                    
029591,001387: 10,2000                                           SETLOC   SLCTMU                                
029592,001388: 10,2000                                           BANK                                           
029593,001389: 10,2000                                           COUNT*   $$/MIDG                               
029594,001390: 
029595,001391: 10,2000           77160        SELECTMU           AXC,1    AXT,2                                 
029596,001392: 10,2001           00002                                    2D                                    
029597,001393: 10,2002           00000                                    0D                                    
029598,001394: 10,2003           77614                           BOFF                                           
029599,001395: 10,2004           04343                                    CMOONFLG                              
029600,001396: 10,2005           20011                                    SETMUER                               
029601,001397: 10,2006           77160                           AXC,1    AXT,2                                 
029602,001398: 10,2007           00012                                    10D                                   
029603,001399: 10,2010           00002                                    2D                                    
029604,001400: 10,2011           66143        SETMUER            DLOAD*   SXA,1                                 
029605,001401: 10,2012           10011                                    MUTABLE    +4,1                       
029606,001402: 10,2013           02776                                    RTX1                                  
029607,001403: 10,2014           22317                           STODL*   RTSR1/MU                              
029608,001404: 10,2015           10003                                    MUTABLE    -2,1                       
029609,001405: 10,2016           54214                           BOFF     SR                                    
029610,001406: 10,2017           04343                                    CMOONFLG                              
029611,001407: 10,2020           20022                                    RTRNMU                                
029612,001408: 10,2021           20607                                    6D                                    
029613,001409: 10,2022           02321        RTRNMU             STORE    RTMU                                  
029614,001410: 10,2023           43134                           SXA,2    CLEAR                                 
029615,001411: 10,2024           02777                                    RTX2                                  
029616,001412: 10,2025           01271                                    FINALFLG                              
029617,001413: 10,2026           77650                           GOTO                                           
029618,001414: 10,2027           73515                                    VN1645                                
029619,001415: 

Page 696

029621,001417:                                                                                                  #  ..... PERIAPO .....
029622,001418:                                                                                                  #  MOD NO -1                     LOG SECTION - P34-P35, P74-P75
029623,001419:                                                                                                  #  MOD BY WHITE.P                DATE 18 JAN 68
029624,001420: 
029625,001421:                                                                                                  #  FUNCTIONAL DESCRIPTION
029626,001422:                                                                                                  #        THIS SUBROUTINE COMPUTES THE TWO BODY APOCENTER AND PERICENTER
029627,001423:                                                                                                  #        ALTITUDES GIVEN THE POSITION AND VELOCITY VECTORS FOR A POINT ON
029628,001424:                                                                                                  #        THE TRAJECTORY AND THE PRIMARY BODY.
029629,001425: 
029630,001426:                                                                                                  #        SETRAD IS CALLED TO DETERMINE THE RADIUS OF THE PRIMARY BODY.
029631,001427: 
029632,001428:                                                                                                  #        APSIDES IS CALLED TO SOLVE FOR THE TWO BODY RADII OF APOCENTER AND
029633,001429:                                                                                                  #        PERICENTER AND THE ECCENTRICITY OF THE TRAJECTORY.
029634,001430: 
029635,001431:                                                                                                  #  CALLING SEQUENCE
029636,001432:                                                                                                  #        L       CALL
029637,001433:                                                                                                  #        L+1             PERIAPO
029638,001434:                                                                                                  #        L+2     (RETURN - ALWAYS)
029639,001435: 
029640,001436:                                                                                                  #  INPUT
029641,001437:                                                                                                  #        (1)     RVEC    POSITION VECTOR IN METERS
029642,001438:                                                                                                  #                        SCALE FACTOR - EARTH +29, MOON +27
029643,001439:                                                                                                  #        (2)     VVEC    VELOCITY VECTOR IN METERS/CENTISECOND
029644,001440:                                                                                                  #                        SCALE FACTOR - EARTH +7, MOON +5
029645,001441:                                                                                                  #        (3)     X1      PRIMARY BODY INDICATOR
029646,001442:                                                                                                  #                        EARTH -2, MOON -10
029647,001443: 
029648,001444:                                                                                                  #  OUTPUT
029649,001445:                                                                                                  #        (1)     2D      APOCENTER RADIUS IN METERS
029650,001446:                                                                                                  #                        SCALE FACTOR - EARTH +29, MOON +27
029651,001447:                                                                                                  #        (2)     4D      APOCENTER ALTITUDE IN METERS
029652,001448:                                                                                                  #                        SCALE FACTOR - EARTH +29, MOON P27
029653,001449:                                                                                                  #        (3)     6D      PERICENTER RADIUS IN METERS
029654,001450:                                                                                                  #                        SCALE FACTOR - EARTH +29, MOON +27
029655,001451:                                                                                                  #        (4)     8D      PERICENTER ALTITUDE IN METERS
029656,001452:                                                                                                  #                        SCALE FACTOR - EARTH +29, MOON +27
029657,001453:                                                                                                  #        (5)     ECC     ECCENTRICITY OF CONIC TRAJECTORY
029658,001454:                                                                                                  #                        SCALE FACTOR - +3
029659,001455:                                                                                                  #        (6)     XXXALT  RADIUS OF THE PRIMARY BODY IN METERS
029660,001456:                                                                                                  #                        SCALE FACTOR - EARTH +29, MOON +27
029661,001457:                                                                                                  #        (7)     PUSHLOC EQUALS 10D
029662,001458: 
029663,001459:                                                                                                  #  SUBROUTINES USED
029664,001460:                                                                                                  #        SETRAD

Page 697

029666,001462:                                                                                                  #        APSIDES
029667,001463: 
029668,001464: 23,2000                                           SETLOC   APOPERI                               
029669,001465: 23,2000                                           BANK                                           
029670,001466: 
029671,001467: 23,2337                                           COUNT*   $$/PERAP                              
029672,001468: 
029673,001469: 23,2337           00302 17755  RPAD               2DEC     6373338    B-29                       #  STANDARD RADIUS OF PAD 37-B.
029674,001470:                                                                                                  #  = 20 909 901.57 FT
029675,001471: 
029676,001472: 23,2341           53754        PERIAPO1           LXA,2    VSR*                                  
029677,001473: 23,2342           02777                                    RTX2                                  
029678,001474: 23,2343           57176                                    0,2                                   
029679,001475: 23,2344           26744                           STOVL    VVEC                                  
029680,001476: 23,2345           53750                           LXA,1    VSR*                                  
029681,001477: 23,2346           02776                                    RTX1                                  
029682,001478: 23,2347           57176                                    0,2                                   
029683,001479: 23,2350           02655                           STORE    RVEC                                  
029684,001480: 23,2351           45020        PERIAPO            STQ      CALL                                  
029685,001481: 23,2352           03463                                    NORMEX                                
029686,001482: 23,2353           46367                                    SETRAD                                
029687,001483: 23,2354           37671                           STCALL   XXXALT                                
029688,001484: 23,2355           25704                                    APSIDES                               
029689,001485: 23,2356           41401                           SETPD    PUSH                                  #  2D = APOCENTER RADIUS         B29 OR B27
029690,001486: 23,2357           00003                                    2D                                    
029691,001487: 23,2360           65225                           DSU      PDDL                                  #  4D = APOGEE ALTITUDE          B29 OR B27
029692,001488: 23,2361           03671                                    XXXALT                                
029693,001489: 23,2362           00001                                    0D                                    
029694,001490: 23,2363           45206                           PUSH     DSU                                   #  6D = PERICENTER RADIUS        B29 OR B27
029695,001491: 23,2364           03671                                    XXXALT                                
029696,001492: 23,2365           52006                           PUSH     GOTO                                  #  8D = PERIGEE ALTITUDE         B29 OR B27
029697,001493: 23,2366           03463                                    NORMEX                                
029698,001494: 

Page 698

029700,001496:                                                                                                  #  SETRAD
029701,001497: 
029702,001498: 23,2367           41545        SETRAD             DLOAD    PUSH                                  
029703,001499: 23,2370           06340                                    RPAD                                  
029704,001500: 23,2371           63130                           SXA,1    INCR,2                                
029705,001501: 23,2372           00047                                    X2                                    
029706,001502: 23,2373           00002                                    2D                                    
029707,001503: 23,2374           46135                           SLOAD    BHIZ                                  
029708,001504: 23,2375           00050                                    X2                                    
029709,001505: 23,2376           46402                                    SETRADX                               
029710,001506: 23,2377           51575                           VLOAD    ABVAL                                 
029711,001507: 23,2400           02023                                    RLS                                   
029712,001508: 23,2401           77725                           PDDL                                           
029713,001509: 23,2402           43545        SETRADX            DLOAD    RVQ                                   
029714,001510: 

Page 699

029716,001512:                                                                                                  #  PRECSET
029717,001513: 
029718,001514: 23,2403           77620        PRECSET            STQ                                            
029719,001515: 23,2404           03463                                    NORMEX                                
029720,001516: 23,2405           37574                           STCALL   TDEC2                                 
029721,001517: 23,2406           27056                                    LEMPREC                               
029722,001518: 23,2407           77624                           CALL                                           
029723,001519: 23,2410           46421                                    LEMSTORE                              
029724,001520: 23,2411           77745                           DLOAD                                          
029725,001521: 23,2412           03574                                    TDEC2                                 
029726,001522: 23,2413           34041                           STCALL   TDEC1                                 
029727,001523: 23,2414           27042                                    CSMPREC                               
029728,001524: 23,2415           77624                           CALL                                           
029729,001525: 23,2416           46431                                    CSMSTORE                              
029730,001526: 23,2417           77650                           GOTO                                           
029731,001527: 23,2420           03463                                    NORMEX                                
029732,001528: 23,2421           43175        LEMSTORE           VLOAD    BOFF                                  
029733,001529: 23,2422           00001                                    RATT                                  
029734,001530: 23,2423           01352                                    AVFLAG                                
029735,001531: 23,2424           46435                                    PASSIVE                               
029736,001532: 23,2425           27536        ACTIVE             STOVL    RACT3                                 
029737,001533: 23,2426           00007                                    VATT                                  
029738,001534: 23,2427           03544                           STORE    VACT3                                 
029739,001535: 23,2430           77616                           RVQ                                            
029740,001536: 23,2431           43175        CSMSTORE           VLOAD    BOFF                                  
029741,001537: 23,2432           00001                                    RATT                                  
029742,001538: 23,2433           01352                                    AVFLAG                                
029743,001539: 23,2434           46425                                    ACTIVE                                
029744,001540: 23,2435           27552        PASSIVE            STOVL    RPASS3                                
029745,001541: 23,2436           00007                                    VATT                                  
029746,001542: 23,2437           03560                           STORE    VPASS3                                
029747,001543: 23,2440           77616                           RVQ                                            
029748,001544: 

Page 700

029750,001546:                                                                                                  #  VECSHIFT
029751,001547: 
029752,001548: 23,2441           53754        VECSHIFT           LXA,2    VSR*                                  
029753,001549: 23,2442           02777                                    RTX2                                  
029754,001550: 23,2443           57176                                    0,2                                   
029755,001551: 23,2444           63350                           LXA,1    PDVL                                  
029756,001552: 23,2445           02776                                    RTX1                                  
029757,001553: 23,2446           63257                           VSR*     PDVL                                  
029758,001554: 23,2447           57176                                    0,2                                   
029759,001555: 23,2450           77616                           RVQ                                            
029760,001556: 

Page 701

029762,001558:                                                                                                  #  SHIFTR1
029763,001559: 
029764,001560: 23,2451           53754        SHIFTR1            LXA,2    SL*                                   
029765,001561: 23,2452           02777                                    RTX2                                  
029766,001562: 23,2453           57576                                    0,2                                   
029767,001563: 23,2454           77616                           RVQ                                            
029768,001564: 

Page 702

029770,001566:                                                                                                  #  PROGRAM DESCRIPTION
029771,001567: 
029772,001568:                                                                                                  #  SUBROUTINE NAME       R36     OUT-OF-PLANE RENDEZVOUS ROUTINE
029773,001569:                                                                                                  #  MOD NO. 0             DATE 22 DECEMBER 67
029774,001570:                                                                                                  #  MOD BY N.M.NEVILLE    LOG SECTION EXTENDED VERBS
029775,001571:                                                                                                  #  FUNCTIONAL DESCRIPTION
029776,001572: 
029777,001573:                                                                                                  #  TO DISPLAY AT ASTRONAUT REQUEST LGC CALCULATED RENDEZVOUS
029778,001574:                                                                                                  #  OUT-OF-PLANE PARAMETERS (Y, YDOT, PSI).  (REQUESTED BY DSKY).
029779,001575: 
029780,001576:                                                                                                  #  CALLING SEQUENCE
029781,001577:                                                                                                  #        ASTRONAUT REQUEST THROUGH DSKY V 90 E
029782,001578: 
029783,001579:                                                                                                  #  SUBROUTINES CALLED
029784,001580:                                                                                                  #        EXDSPRET
029785,001581:                                                                                                  #        GOMARKF
029786,001582:                                                                                                  #        CSMPREC
029787,001583:                                                                                                  #        LEMPREC
029788,001584:                                                                                                  #        SGNAGREE
029789,001585:                                                                                                  #        LOADTIME
029790,001586: 
029791,001587:                                                                                                  #  NORMAL EXIT MODES
029792,001588:                                                                                                  #        ASTRONAUT REQUEST THROUGH DSKY TO TERMINATE PROGRAM V 34 E
029793,001589: 
029794,001590:                                                                                                  #  ALARM OR ABORT EXIT MODES
029795,001591:                                                                                                  #        NONE
029796,001592: 
029797,001593:                                                                                                  #  OUTPUT
029798,001594:                                                                                                  #        DECIMAL DISPLAY OF TIME, Y, YDOT AND PSI
029799,001595: 
029800,001596:                                                                                                  #        DISPLAYED VALUES Y, YDOT, AND PSI, ARE STORED IN ERASABLE
029801,001597:                                                                                                  #        REGISTERS RANGE, RRATE AND RTHETA RESPECTIVELY.
029802,001598: 
029803,001599:                                                                                                  #  ERASABLE INITIALIZATION REQUIRED
029804,001600:                                                                                                  #        CSM AND LEM STATE VECTORS
029805,001601: 
029806,001602:                                                                                                  #  DEBRIS
029807,001603:                                                                                                  #        CENTRALS A,Q,L
029808,001604:                                                                                                  #        OTHER THOSE USED BY THE ABOVE LISTED SUBROUTINES
029809,001605: 
029810,001606: 20,2115                                           BANK     20                                    
029811,001607: 04,2000                                           SETLOC   R36LM                                 
029812,001608: 04,2000                                           BANK                                           

Page 703

029814,001610: 04,2642  E7,1441                                  EBANK=   TIG                                   
029815,001611: 04,2642                                           COUNT*   $$/R36                                
029816,001612: 
029817,001613: 04,2642           00006        R36                EXTEND                                         
029818,001614: 04,2643           31442                           DCA      TIG                                   #  SET TIME-OF-EVENT TO TIG FOR NOMINAL
029819,001615: 04,2644           53051                           DXCH     DSPTEMX                               #  DISPLAY
029820,001616: 04,2645           32755                           CAF      V06N16N                               
029821,001617: 04,2646           04616                           TC       BANKCALL                              
029822,001618: 04,2647           20334                           CADR     GOMARKF                               
029823,001619: 04,2650           15472                           TCF      ENDEXT                                #  TERMINATE
029824,001620: 04,2651           12653                           TCF      +2                                    #  PROCEED
029825,001621: 04,2652           12645                           TCF      -5                                    #  RECYCLE FOR ASTRONAUT INPUT TIME
029826,001622: 04,2653           06042                           TC       INTPRET                               
029827,001623: 04,2654           53145                           DLOAD    BZE                                   
029828,001624: 04,2655           01051                                    DSPTEMX                               
029829,001625: 04,2656           10752                                    GETNOW                                #  ASTOR-LOADED ZERO, GET PRES TIME
029830,001626: 04,2657           34041        R36INT             STCALL   TDEC1                                 
029831,001627: 04,2660           27042                                    OTHPREC                               
029832,001628: 04,2661           63375                           VLOAD    PDVL                                  
029833,001629: 04,2662           00007                                    VATT                                  
029834,001630: 04,2663           00001                                    RATT                                  #  -
029835,001631: 04,2664           02207                           STORE    RPASS36                               #  R
029836,001632: 04,2665           63256                           UNIT     PDVL                                  #  P
029837,001633: 04,2666           53435                           VXV      UNIT                                  #  -
029838,001634: 04,2667           77626                           STADR                                          
029839,001635: 04,2670           61562                           STODL    UNP36                                 #  U
029840,001636: 04,2671           00015                                    TAT                                   
029841,001637: 04,2672           34041                           STCALL   TDEC1                                 
029842,001638: 04,2673           27056                                    THISPREC                              
029843,001639: 04,2674           63375                           VLOAD    PDVL                                  #                    -
029844,001640: 04,2675           00007                                    VATT                                  #  VELOCITY VECTOR   V   00D
029845,001641: 04,2676           00001                                    RATT                                  #                     A
029846,001642: 04,2677           41406                           PUSH     PUSH                                  #  POSITION VECTOR   R   IN  06D AND 12D
029847,001643: 04,2700           63245                           BVSU     PDVL                                  #                     A  -   -
029848,001644: 04,2701           02207                                    RPASS36                               #  LINE OF SIGHT VECTOR  R - R       12D
029849,001645: 04,2702           72441                           DOT      SL1                                   #                         P   A
029850,001646: 04,2703           02215                                    UNP36                                 #      -   -
029851,001647: 04,2704           26201                           STOVL    RANGE                                 #  Y = U . R
029852,001648: 04,2705           00001                                    00D                                   #           A
029853,001649: 04,2706           72441                           DOT      SL1                                   
029854,001650: 04,2707           02215                                    UNP36                                 #  .   -   -
029855,001651: 04,2710           26203                           STOVL    RRATE                                 #  Y = U . V
029856,001652: 04,2711           00007                                    06D                                   #  -        A  -
029857,001653: 04,2712           41456                           UNIT     PUSH                                  #  U  = UNIT ( R  )              18D
029858,001654: 04,2713           47235                           VXV      VXV                                   #   RA          A
029859,001655: 04,2714           00001                                    00D                                   #   -    -     -     -
029860,001656: 04,2715           00023                                    18D                                   #  (U  X V ) X U   = U
029861,001657: 04,2716           53552                           VSL2     UNIT                                  #    RA   A     RA    A
029862,001658: 04,2717           77656                           UNIT                                           
029863,001659: 04,2720           24001                           STOVL    00D                                   #  UNIT HORIZONTAL IN FORWARD DIR. 00D

Page 704

029865,001661: 04,2721           00023                                    18D                                   
029866,001662: 04,2722           74241                           DOT      VXSC                                  #  -
029867,001663: 04,2723           00015                                    12D                                   #  U
029868,001664: 04,2724           77752                           VSL2                                           #   L
029869,001665: 04,2725           53445                           BVSU     UNIT                                  
029870,001666: 04,2726           77656                           UNIT                                           
029871,001667: 04,2727           50206                           PUSH     DOT                                   #  LOS PROJECTED INTO HORIZONTAL  12D
029872,001668: 04,2730           00001                                    00D                                   #  PLANE
029873,001669: 04,2731           65552                           SL1      ARCCOS                                #               -   -
029874,001670: 04,2732           26205                           STOVL    RTHETA                                #  PSI = ARCCOS(U . U )
029875,001671: 04,2733           50235                           VXV      DOT                                   #                A   L
029876,001672: 04,2734           00001                                    00D                                   
029877,001673: 04,2735           71244                           BPL      DLOAD                                 
029878,001674: 04,2736           10743                                    R36TAG2                               
029879,001675: 04,2737           24020                                    LODPMAX                               
029880,001676: 04,2740           77625                           DSU                                            
029881,001677: 04,2741           02205                                    RTHETA                                
029882,001678: 04,2742           02205                           STORE    RTHETA                                
029883,001679: 04,2743           77776        R36TAG2            EXIT                                           
029884,001680: 04,2744           32756                           CAF      V06N90N                               #  DISPLAY Y, YDOT, AND PSI
029885,001681: 04,2745           04616                           TC       BANKCALL                              
029886,001682: 04,2746           20334                           CADR     GOMARKF                               
029887,001683: 04,2747           15472                           TCF      ENDEXT                                #  TERMINATE
029888,001684: 04,2750           15472                           TCF      ENDEXT                                #  PROCEED, END OF PROGRAM
029889,001685: 04,2751           12642                           TCF      R36                                   #  RECYCLE, TIG OR ASTRO-OPTION
029890,001686: 04,2752           52034        GETNOW             RTB      GOTO                                  #  ASTRO-SELECTED PRESENT TIME
029891,001687: 04,2753           21574                                    LOADTIME                              
029892,001688: 04,2754           10657                                    R36INT                                
029893,001689: 04,2755           01420        V06N16N            VN       00616                                 
029894,001690: 04,2756           01532        V06N90N            VN       00690                                 

End of include-file P34-P35,_P74-P75.agc.  Parent file is MAIN.agc