Source Code
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These source-code files are part of a reconstructed copy of Comanche 051, the
original release of the Apollo 11 Command Module (CM) Apollo Guidance Computer
(AGC) software.
The reconstruction began with source code of Comanche 055 previously transcribed
from a digitized copy of that program. The code was then updated by undoing
changes related to the R-2 lunar potential model, using hints from program
comments and change-indicating asterisks in the Comanche 055 listing as a guide.
The reconstruction was verified by matching memory-bank checksums to those listed
in drawing 2021153D. Note that page numbers in the reconstructed code match those
on the Comanche 055 printout, although the added code would likely have changed page
numbers for a real Comanche 051 listing.
Comments from the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
project's GitHub repository.
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038745,000002: ## Copyright: Public domain.
038746,000003: ## Filename: P37,P70.agc
038747,000004: ## Purpose: A section of Comanche revision 051.
038748,000005: ## It is part of the reconstructed source code for the
038749,000006: ## original release of the flight software for the Command
038750,000007: ## Module's (CM) Apollo Guidance Computer (AGC) for Apollo 11.
038751,000008: ## The code has been recreated from a copy of Comanche 055. It
038752,000009: ## has been adapted such that the resulting bugger words
038753,000010: ## exactly match those specified for Comanche 51 in NASA drawing
038754,000011: ## 2021153D, which gives relatively high confidence that the
038755,000012: ## reconstruction is correct.
038756,000013: ## Reference: pp. 890-933
038757,000014: ## Assembler: yaYUL
038758,000015: ## Contact: Ron Burkey <info@sandroid.org>.
038759,000016: ## Website: www.ibiblio.org/apollo/index.html
038760,000017: ## Mod history: 2019-07-30 MAS Created from Comanche 55.
038761,000018:
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Page 890
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038763,000020: 31,3700 BANK 31
038764,000021: 36,2000 SETLOC RTE1
038765,000022: 36,2000 BANK
038766,000023:
038767,000024: 36,2466 E7,1631 EBANK= RTEDVD
038768,000025: 36,2466 COUNT 31/P37
038769,000026:
038770,000027: # PROGRAM DESCRIPTION - P37, RETURN TO EARTH
038771,000028:
038772,000029: # DESCRIPTION
038773,000030: # A RETURN TO EARTH TRAJECTORY IS COMPUTED PROVIDED THE CSM IS OUTSIDE THE LUNAR SPHERE OF INFLUENCE AT THE
038774,000031: # TIME OF IGNITION. INITIALLY A CONIC TRAJECTORY IS DETERMINED AND RESULTING IGNITION AND REENTRY PARAMETERS ARE
038775,000032: # DISPLAYED TO THE ASTRONAUT. THEN IF THE ASTRONAUT SO DESIRES, A PRECISION TRAJECTORY IS DETERMINED WITH THE
038776,000033: # RESULTING IGNITION AND REENTRY PARAMETERS DISPLAYED. UPON FINAL ACCEPTANCE BY THE ASTRONAUT, THE PROGRAM
038777,000034: # COMPUTES AND STORES THE TARGET PARAMETERS FOR RETURN TO EARTH FOR USE BY SPS PROGRAM (P40) OR RCS PROGRAM (P41).
038778,000035:
038779,000036: # CALLING SEQUENCE
038780,000037: # L TC P37
038781,000038:
038782,000039: # SUBROUTINES CALLED
038783,000040: # PREC100
038784,000041: # V2T100
038785,000042: # RTENCK2
038786,000043: # RTENCK3
038787,000044: # TIMERAD
038788,000045: # PARAM
038789,000046: # V2T100
038790,000047: # GAMDV10
038791,000048: # XT1LIM
038792,000049: # DVCALC
038793,000050: # RTENCK1
038794,000051: # INTSTALL
038795,000052: # INTEGRVS
038796,000053: # RTEVN
038797,000054: # RTEDISP
038798,000055: # TMRAD100
038799,000056: # AUGEKUGL
038800,000057: # LAT-LONG
038801,000058: # TMRAD100
038802,000059: # TIMERAD
038803,000060: # INVC100
038804,000061: # CSMPREC
038805,000062: # GETERAD
038806,000063: # TIMETHET
038807,000064: # P370ALRM
038808,000065: # VN1645
038809,000066: # POLY
038810,000067:
038811,000068: # ERASABLE INITIALIZATION REQUIRED
038812,000069: # CSM STATE VECTOR
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Page 891
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038814,000071: # NJETSFLG NUMBER OF JETS IF THE RCS PROPULSION SYSTEM SELECTED STATE FLAG 0=4 JETS 1=2 JETS
038815,000072:
038816,000073: # ASTRONAUT INPUT
038817,000074: # SPRTETIG TIME OF IGNITION (OVERLAYS TIG) DP B28 CS
038818,000075: # VPRED DESIRED CHANGE IN VELOCITY AT TIG(PROGRM COMPUTED IF 0) DP B7 METERS/CS
038819,000076: # GAMMAEI DESIRED FLIGHT PATH ANGLE AT REENTRY (COMPUTED IF 0) DP B0 REVS + ABOVE HORIZ.
038820,000077: # OPTION2 PROPULSION SYSTEM OPTION SP B14 1=SPS, 2=RCS
038821,000078:
038822,000079: # OUTPUT
038823,000080: # CONIC OR PRECISION TRAJECTORY DISPLAY
038824,000081: # VPRED VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE DP B7 METERS/CS
038825,000082: # T3TOT4 TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE DP B28 CS
038826,000083: # GAMMAEI FLIGHT PATH ANGLE AT 400,000 FT. ENTRY ALTITUDE DP B0 REVS + ABOVE HORIZON
038827,000084: # DELVLVC INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR B7 METERS/CS
038828,000085: # LAT(SPL) LATITUDE OF THE LANDING SITE DP B0 REVS
038829,000086: # LNG(SPL) LONGITUDE OF THE LANDING SITE DP B0 REVS
038830,000087: # TARGETING COMPUTATION DISPLAY
038831,000088: # TIG RECOMPUTED TIG BASED ON THRUST OPTION DP B28 CS
038832,000089: # TTOGO TIME FROM TIG DP B28 CS
038833,000090: # +MGA POSITIVE MIDDLE GIMBAL ANGLE DP B0 REVS -.02 IF REFSMFLG=0
038834,000091: # THRUST PROGRAM COMMUNICATION
038835,000092: # XDELVFLG EXTERNAL DELTA V FLAG STATE FLAG SET 0 FOR LAMBERT AIMPT
038836,000093: # NORMSW LAMBERT AIMPT ROTATION SWITCH STATE FLAG SET 0 FOR NO ROTATION
038837,000094: # ECSTEER CROSS PRODUCT STEERING CONSTANT SP B2 SET 1
038838,000095: # RTARG CONICALLY INTEGRATED REENTRY POSITION VECTOR VECTOR B29 METERS
038839,000096: # TPASS4 REENTRY TIME DP B28 CS
038840,000097:
038841,000098: 36,2466 05412 P37 TC PHASCHNG # P37 IS NOT RESTARTABLE.
038842,000099: 36,2467 00004 OCT 4
038843,000100:
038844,000101: 36,2470 06006 TC INTPRET
038845,000102: 36,2471 66170 AXT,1 SXA,1
038846,000103: 36,2472 04000 OCT 04000
038847,000104: 36,2473 03424 ECSTEER
038848,000105: 36,2474 77745 DLOAD
038849,000106: 36,2475 15335 ZEROVECS
038850,000107: 36,2476 03767 STORE VPRED
038851,000108: 36,2477 03771 STORE GAMMAEI
038852,000109: 36,2500 77776 EXIT
038853,000110: 36,2501 33246 CAF V6N33RTE # INPUT TIG STORED IN SPRTETIG
038854,000111: 36,2502 03235 TCR P370GOF # OVERLAYED WITH TIG
038855,000112: 36,2503 12501 TCF -2 # DESPLAY NEW DATA
038856,000113: 36,2504 33252 CAF V6N60RTE # INPUT REENTRY ANGLE IN GAMMAEI
038857,000114: 36,2505 03211 TCR P37GFRB1 # AND DESIRED DELTA V IN RTEDVD
038858,000115: 36,2506 12504 TCF -2 # DISPLAY NEW DATA
038859,000116: 36,2507 06006 RTE299 TC INTPRET
038860,000117: 36,2510 71331 SSP DLOAD
038861,000118: 36,2511 00122 OVFIND
038862,000119: 36,2512 00000 0
038863,000120: 36,2513 03767 VPRED
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Page 892
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038865,000122: 36,2514 17632 STODL RTEDVD
038866,000123: 36,2515 03771 GAMMAEI
038867,000124: 36,2516 17634 STODL RTEGAM2D
038868,000125: 36,2517 33514 1RTEB13
038869,000126: 36,2520 17735 STODL CONICX1
038870,000127: 36,2521 33620 C4RTE
038871,000128: 36,2522 37652 STCALL MAMAX1
038872,000129: 36,2523 64450 INVC100 # GET R(T1)/,V(T1)/,UR1/,UH/
038873,000130: 36,2524 71214 CLEAR DLOAD
038874,000131: 36,2525 02662 SLOWFLG
038875,000132: 36,2526 03632 RTEDVD
038876,000133: 36,2527 51444 BPL ABS
038877,000134: 36,2530 74540 RTE317
038878,000135: 36,2531 03632 STORE RTEDVD
038879,000136: 36,2532 45345 DLOAD DSU
038880,000137: 36,2533 03646 R(T1)
038881,000138: 36,2534 33622 K1RTE
038882,000139: 36,2535 43040 BMN SET
038883,000140: 36,2536 74540 RTE317
038884,000141: 36,2537 02462 SLOWFLG
038885,000142: 36,2540 77545 RTE317 DLOAD EXIT
038886,000143: 36,2541 03646 R(T1)
038887,000144: 36,2542 07171 TC POLY
038888,000145: 36,2543 00002 DEC 2 B-14
038889,000146: 36,2544 02544 35436 2DEC 181000434. B-31
038890,000147: 36,2546 14040 05066 2DEC 1.50785145 B-2
038891,000148: 36,2550 44052 60030 2DEC* -6.49993057 E-9 B27*
038892,000149: 36,2552 26415 25057 2DEC* 9.76938926 E-18 B56*
038893,000150: 36,2554 06006 TC INTPRET
038894,000151: 36,2555 77752 SL1
038895,000152: 36,2556 17654 STODL MAMAX2 # C0+C1*R+C2*R**2+C3*R**3=MAMAX2 B30
038896,000153: 36,2557 33544 M9RTEB28
038897,000154: 36,2560 17730 STODL NN1A
038898,000155: 36,2561 33624 K2RTE
038899,000156: 36,2562 17636 RTE320 STODL RCON # RCON=K2
038900,000157: 36,2563 03634 RTEGAM2D
038901,000158: 36,2564 44254 BZE BDSU
038902,000159: 36,2565 74574 RTE340 # GOTORTE340 IF REENTRY ANGLE NOT INPUT
038903,000160: 36,2566 33502 1RTEB2
038904,000161: 36,2567 71406 PUSH COS # PL02D
038905,000162: 36,2570 73525 PDDL SIN
038906,000163: 36,2571 45465 BDDV STADR # PL00D
038907,000164: 36,2572 40051 STCALL X(T2) # X(T2)=COT(GAM2D) B0
038908,000165: 36,2573 74607 RTE360
038909,000166: 36,2574 45345 RTE340 DLOAD DSU
038910,000167: 36,2575 03646 R(T1)
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Page 893
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038912,000169: 36,2576 33622 K1RTE
038913,000170: 36,2577 71240 BMN DLOAD
038914,000171: 36,2600 74604 RTE350
038915,000172: 36,2601 33630 K4RTE
038916,000173: 36,2602 37726 STCALL X(T2) # X(T2)=K4
038917,000174: 36,2603 74607 RTE360
038918,000175: 36,2604 77745 RTE350 DLOAD
038919,000176: 36,2605 33626 K3RTE
038920,000177: 36,2606 03726 STORE X(T2) # X(T2)=K3
038921,000178: 36,2607 77624 RTE360 CALL
038922,000179: 36,2610 65075 V2T100
038923,000180: 36,2611 52054 BZE GOTO
038924,000181: 36,2612 74614 RTE367
038925,000182: 36,2613 74776 RTEALRM
038926,000183: 36,2614 77775 RTE367 VLOAD
038927,000184: 36,2615 03640 R(T1)/
038928,000185: 36,2616 16657 STODL RVEC
038929,000186: 36,2617 03636 RCON
038930,000187: 36,2620 26760 STOVL RDESIRED
038931,000188: 36,2621 03700 V2(T1)/
038932,000189: 36,2622 36746 STCALL VVEC
038933,000190: 36,2623 64277 TMRAD100
038934,000191: 36,2624 77615 DAD
038935,000192: 36,2625 03716 T1
038936,000193: 36,2626 17736 STODL T2
038937,000194: 36,2627 03634 RTEGAM2D
038938,000195: 36,2630 52054 BZE GOTO
038939,000196: 36,2631 74633 RTE369
038940,000197: 36,2632 74655 RTE372
038941,000198: 36,2633 51575 RTE369 VLOAD ABVAL
038942,000199: 36,2634 03710 V(T2)/
038943,000200: 36,2635 77776 EXIT
038944,000201: 36,2636 07171 TC POLY
038945,000202: 36,2637 00002 DEC 2 B-14
038946,000203: 36,2640 00000 00000 2DEC 0 B-28
038947,000204: 36,2642 47021 65002 2DEC -4.8760771 E-2 B4
038948,000205: 36,2644 35610 07722 2DEC 4.5419476 E-4 B11
038949,000206: 36,2646 63772 63276 2DEC -1.4317675 E-6 B18
038950,000207:
038951,000208: 36,2650 06006 TC INTPRET
038952,000209: 36,2651 77615 DAD
038953,000210: 36,2652 01352 RTED1
038954,000211: 36,2653 52052 SL3 GOTO # X(T2),=D1+D2V2+D3V2**2+D4V2**3
038955,000212: 36,2654 74657 RTE373
038956,000213: 36,2655 77745 RTE372 DLOAD # X(T2),=X(T2)
038957,000214: 36,2656 03726 X(T2)
038958,000215: 36,2657 41425 RTE373 DSU PUSH # X(T2)ERR B0 PL02D
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Page 894
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038960,000217: 36,2660 03726 X(T2)
038961,000218: 36,2661 53575 VLOAD UNIT
038962,000219: 36,2662 03656 R(T2)/ # B58
038963,000220: 36,2663 36152 STCALL ALPHAV
038964,000221: 36,2664 26505 GETERAD
038965,000222: 36,2665 77615 DAD
038966,000223: 36,2666 33634 E3RTE
038967,000224: 36,2667 45206 PUSH DSU # RCON,=(E1/(1+E2BETA11)**.5)+E3 B29 PL04D
038968,000225: 36,2670 03636 RCON
038969,000226: 36,2671 45246 ABS DSU
038970,000227: 36,2672 33600 EPC2RTE
038971,000228: 36,2673 52040 BMN GOTO
038972,000229: 36,2674 74676 RTE374
038973,000230: 36,2675 74703 RTE375
038974,000231: 36,2676 51545 RTE374 DLOAD ABS
038975,000232: 36,2677 00001 00D
038976,000233: 36,2700 50025 DSU BMN
038977,000234: 36,2701 33602 EPC3RTE
038978,000235: 36,2702 74753 P37E
038979,000236: 36,2703 43345 RTE375 DLOAD DAD
038980,000237: 36,2704 03730 NN1A
038981,000238: 36,2705 33522 1RTEB28
038982,000239: 36,2706 67240 BMN SLOAD
038983,000240: 36,2707 74713 RTE380
038984,000241: 36,2710 33562 OCT605
038985,000242: 36,2711 77650 GOTO
038986,000243: 36,2712 74776 RTEALRM # TOO MANY ITERATIONS
038987,000244: 36,2713 03730 RTE380 STORE NN1A
038988,000245: 36,2714 53025 DSU BZE
038989,000246: 36,2715 33546 M8RTEB28
038990,000247: 36,2716 74734 RTE385
038991,000248: 36,2717 45345 DLOAD DSU
038992,000249: 36,2720 00001 00D
038993,000250: 36,2721 03666 DRCON
038994,000251: 36,2722 65301 NORM PDDL # X(T2)ERR-X(T2)ERR,=Z1 PL06D
038995,000252: 36,2723 00047 X1
038996,000253: 36,2724 03670 RPRE'
038997,000254: 36,2725 56225 DSU DDV # X(T2)PRI-X(T2)=Z2 PL04D
038998,000255: 36,2726 03726 X(T2)
038999,000256: 36,2727 53605 DMP SL* # DX(T2)=X(T2)ERR(Z2/Z1)
039000,000257: 36,2730 00001 00D
039001,000258: 36,2731 20201 0,1
039002,000259: 36,2732 77650 GOTO
039003,000260: 36,2733 74736 RTE390
039004,000261: 36,2734 77745 RTE385 DLOAD # DX(T2)=X(T2)ERR
039005,000262: 36,2735 00001 00D
039006,000263: 36,2736 14021 RTE390 STODL 16D # DX(T2) PL02D
039007,000264: 36,2737 77626 STADR
039008,000265: 36,2740 60141 STODL RCON # RCON=RCON,
039009,000266: 36,2741 77600 BOV
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Page 895
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039011,000268: 36,2742 74607 RTE360
039012,000269: 36,2743 17666 STODL DRCON # X(T2)ERR,=X(T2)ERR
039013,000270: 36,2744 03726 X(T2)
039014,000271: 36,2745 17670 STODL RPRE' # X(T2)PRI=X(T2)
039015,000272: 36,2746 00021 16D
039016,000273: 36,2747 77615 DAD
039017,000274: 36,2750 03726 X(T2)
039018,000275: 36,2751 37726 STCALL X(T2) # X(T2)=X(T2)+DX(T2)
039019,000276: 36,2752 74607 RTE360 # REITERATE
039020,000277: 36,2753 77624 P37E CALL # DISPLAY CONIC SOLUTION
039021,000278: 36,2754 75002 RTEVN
039022,000279: 36,2755 41345 RTE505 DLOAD DMP
039023,000280: 36,2756 03720 PCON
039024,000281: 36,2757 03754 BETA1
039025,000282: 36,2760 53021 BDSU BZE
039026,000283: 36,2761 03636 RCON
039027,000284: 36,2762 74770 RTE510
039028,000285: 36,2763 71240 BMN DLOAD
039029,000286: 36,2764 74770 RTE510
039030,000287: 36,2765 33502 1RTEB2
039031,000288: 36,2766 77650 GOTO # ENTRY NEAR APOGEE
039032,000289: 36,2767 74772 RTE515
039033,000290: 36,2770 57545 RTE510 DLOAD DCOMP # ENTRY NEAR PERIGEE
039034,000291: 36,2771 33502 1RTEB2
039035,000292: 36,2772 37761 RTE515 STCALL PHI2
039036,000293: 36,2773 64541 PREC100 # PRECISION TRAJECTORY COMPUTATION
039037,000294: 36,2774 77654 RTE625 BZE
039038,000295: 36,2775 75030 P37G
039039,000296: 36,2776 77624 RTEALRM CALL
039040,000297: 36,2777 64262 P370ALRM
039041,000298: 36,3000 77776 EXIT
039042,000299: 36,3001 12466 TCF P37 # RECYCLE AFTER ALARM DISPLAY
039043,000300:
039044,000301: # RETURN TO EARTH DISPLAY SUBROUTINE
039045,000302:
039046,000303: 36,3002 45020 RTEVN STQ CALL
039047,000304: 36,3003 03763 VNSTORE
039048,000305: 36,3004 64316 RTEDISP # DISPLAY PREPARATION
039049,000306: 36,3005 77776 EXIT
039050,000307: 36,3006 33250 CAF V6N61RTE # LATITUDE,LONGITUDE,BLANK
039051,000308: 36,3007 03221 TCR P370GOFR # IN LAT(SPL),LNG(SPL),-
039052,000309: 36,3010 35015 CAF FOUR
039053,000310: 36,3011 03215 TCR 37BLANK +1
039054,000311: 36,3012 13017 TCF +5
039055,000312: 36,3013 12466 TCF P37 # RECYCLE
039056,000313: 36,3014 33251 CAF V6N39RTE # T21 HRS,MIN,SEC IN T3TOT4
039057,000314: 36,3015 03235 TCR P370GOF
039058,000315: 36,3016 12466 TCF P37 # RECYCLE
039059,000316: 36,3017 33252 CAF V6N60RTE # DISPLAY BLANK,V(T2),FPA2
039060,000317: 36,3020 03211 TCR P37GFRB1 # IN -,VPRED,GAMMAEI
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Page 896
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039062,000319: 36,3021 12466 TCF P37 # RECYCLE
039063,000320: 36,3022 33253 CAF V6N81RTE # DISPLAY DELTA V (LV) IN DELVLVC
039064,000321: 36,3023 03235 TCR P370GOF
039065,000322: 36,3024 12466 TCF P37 # RECYCLE
039066,000323: 36,3025 06006 TCR INTPRET
039067,000324: 36,3026 77650 GOTO
039068,000325: 36,3027 03763 VNSTORE
039069,000326:
039070,000327: # PRECISION DISPLAY, TARGETING COMPUTATION AND RTE END PROCESSING
039071,000328:
039072,000329: 36,3030 77624 P37G CALL
039073,000330: 36,3031 75002 RTEVN
039074,000331: 36,3032 77776 EXIT
039075,000332: 36,3033 35023 P37N CAF SEVEN
039076,000333: 36,3034 55131 TS OPTION1
039077,000334: 36,3035 35017 CAF ONE
039078,000335: 36,3036 55132 TS OPTION2
039079,000336: 36,3037 33247 CAF V4N06RTE # DISPLAY RCS OR SPS OPTION SPS ASSUMED
039080,000337: 36,3040 03235 TCR P370GOF
039081,000338: 36,3041 13037 TCF -2 # RECYCLE
039082,000339: 36,3042 06006 TC INTPRET # PROCEED
039083,000340: 36,3043 67201 SETPD SLOAD
039084,000341: 36,3044 00001 00D
039085,000342: 36,3045 01133 OPTION2
039086,000343: 36,3046 53025 DSU BZE
039087,000344: 36,3047 33514 1RTEB13
039088,000345: 36,3050 75057 P37Q
039089,000346: 36,3051 60335 SLOAD NORM # SPS
039090,000347: 36,3052 00111 EMDOT
039091,000348: 36,3053 00047 X1
039092,000349: 36,3054 52125 PDDL GOTO
039093,000350: 36,3055 33552 VCSPS
039094,000351: 36,3056 75070 P37T
039095,000352: 36,3057 43145 P37Q DLOAD BON # RCS
039096,000353: 36,3060 33556 MDOTRCS
039097,000354: 36,3061 00700 NJETSFLG
039098,000355: 36,3062 75064 P37R
039099,000356: 36,3063 77752 SL1
039100,000357: 36,3064 77752 P37R SL1
039101,000358: 36,3065 65301 NORM PDDL
039102,000359: 36,3066 00047 X1
039103,000360: 36,3067 33554 VCRCS
039104,000361: 36,3070 56325 P37T PDDL DDV # DV/VC B7 -B5 = B2 PL02D
039105,000362: 36,3071 03706 DV
039106,000363: 36,3072 77776 EXIT
039107,000364: 36,3073 07171 TC POLY
039108,000365: 36,3074 00001 DEC 1 B-14
039109,000366: 36,3075 00001 05070 2DEC 5.66240507 E-4 B-3
039110,000367: 36,3077 17527 36700 2DEC 9.79487897 E-1 B-1
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Page 897
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039112,000369: 36,3101 47114 70670 2DEC -.388281955 B1
039113,000370: 36,3103 06006 TC INTPRET
039114,000371: 36,3104 67206 PUSH SLOAD # (1-E)**(-DV/VC)=A B3 PL04D
039115,000372: 36,3105 03076 WEIGHT/G
039116,000373: 36,3106 56205 DMP DDV # DTB=(M0/MDOT)A B16+B3-B3=B16 PL00D
039117,000374: 36,3107 41257 SL* DMP
039118,000375: 36,3110 20165 0 -12D,1
039119,000376: 36,3111 33560 CSUBT
039120,000377: 36,3112 77621 BDSU
039121,000378: 36,3113 03716 T1
039122,000379: 36,3114 03413 STORE TIG # TIG=T1-CT*DTB B28
039123,000380: 36,3115 77776 EXIT
039124,000381: 36,3116 33246 CAF V6N33RTE # DISPLAY BIASED TIG
039125,000382: 36,3117 03235 TCR P370GOF
039126,000383: 36,3120 13116 TCF -2
039127,000384: 36,3121 35021 CAF ZERO
039128,000385: 36,3122 55125 TS VHFCNT
039129,000386: 36,3123 55126 TS TRKMKCNT
039130,000387: 36,3124 06006 TC INTPRET
039131,000388: 36,3125 77624 CALL # CONICALLY INTEGRATE FROM R1,V1 OVER T12
039132,000389: 36,3126 63700 RTENCK1
039133,000390: 36,3127 53575 VLOAD UNIT # PL00D
039134,000391: 36,3130 03656 R(T2)/
039135,000392: 36,3131 74315 PDVL VXSC # UR2 B1 PL06D
039136,000393: 36,3132 03740 UR1/
039137,000394: 36,3133 33564 MCOS7.5
039138,000395: 36,3134 74315 PDVL VXSC # -UR1(COS7.5) B1 PL12D
039139,000396: 36,3135 03746 UH/
039140,000397: 36,3136 33566 MSIN7.5
039141,000398: 36,3137 50255 VAD DOT # K/=-UR1(COS7.5)-UH(SIN7.5) B2 PL00D
039142,000399: 36,3140 50015 DAD BMN
039143,000400: 36,3141 33570 MCOS22.5
039144,000401: 36,3142 75167 P37W
039145,000402: 36,3143 50375 VLOAD DOT # K/ . UR2 GR COS22.5
039146,000403: 36,3144 03746 UH/
039147,000404: 36,3145 03656 R(T2)/
039148,000405: 36,3146 71240 BMN DLOAD
039149,000406: 36,3147 75153 P37U
039150,000407: 36,3150 33572 THETA165
039151,000408: 36,3151 52006 PUSH GOTO
039152,000409: 36,3152 75155 P37V
039153,000410: 36,3153 41545 P37U DLOAD PUSH
039154,000411: 36,3154 33574 THETA210
039155,000412: 36,3155 77756 P37V SIN
039156,000413: 36,3156 16732 STODL SNTH
039157,000414: 36,3157 43146 COS CLEAR
039158,000415: 36,3160 03666 RVSW
039159,000416: 36,3161 26734 STOVL CSTH
039160,000417: 36,3162 03640 R(T1)/
|
|
Page 898
|
039162,000419: 36,3163 26657 STOVL RVEC
039163,000420: 36,3164 03700 V2(T1)/
039164,000421: 36,3165 36746 STCALL VVEC
039165,000422: 36,3166 24744 TIMETHET
039166,000423: 36,3167 43014 P37W CLEAR CLEAR
039167,000424: 36,3170 01267 XDELVFLG
039168,000425: 36,3171 03665 NORMSW
039169,000426: 36,3172 77214 SET VLOAD
039170,000427: 36,3173 01071 FINALFLG
039171,000428: 36,3174 77626 STADR
039172,000429: 36,3175 60362 STODL RTARG
039173,000430: 36,3176 00037 T
039174,000431: 36,3177 77615 DAD
039175,000432: 36,3200 03716 T1
039176,000433: 36,3201 27656 STOVL TPASS4
039177,000434: 36,3202 03700 V2(T1)/
039178,000435: 36,3203 77651 VSU
039179,000436: 36,3204 03672 V(T1)/
039180,000437: 36,3205 37646 STCALL DELVSIN
039181,000438: 36,3206 73002 VN1645
039182,000439: 36,3207 77650 GOTO
039183,000440: 36,3210 75167 P37W
039184,000441:
039185,000442: # SUBROUTINE TO GO TO GOFLASHR AND BLANK R1
039186,000443:
039187,000444: 36,3211 00006 P37GFRB1 EXTEND
039188,000445: 36,3212 23762 QXCH SPRTEX
039189,000446: 36,3213 03221 TCR P370GOFR
039190,000447: 36,3214 35017 37BLANK CAF ONE
039191,000448: 36,3215 05526 TCR BLANKET
039192,000449: 36,3216 15217 TCF ENDOFJOB
039193,000450: 36,3217 01762 TC SPRTEX # RECYCLE
039194,000451: 36,3220 13244 TCF P37PROC # PROCEED
039195,000452:
039196,000453: # SUBROUTINE TO GO TO GOFLASHR
039197,000454:
039198,000455: 36,3221 00006 P370GOFR EXTEND
039199,000456: 36,3222 23733 QXCH RTENCKEX
039200,000457: 36,3223 04662 TCR BANKCALL
039201,000458: 36,3224 21057 CADR GOFLASHR
039202,000459: 36,3225 14106 TCF GOTOPOOH # TERMINATE
039203,000460: 36,3226 13231 TCF +3
039204,000461: 36,3227 13233 TCF +4
039205,000462: 36,3230 01733 TC RTENCKEX # IMMEDIATE RETURN
039206,000463: 36,3231 51733 INDEX RTENCKEX # PROCEED
039207,000464: 36,3232 10004 TCF 0 +4
039208,000465: 36,3233 51733 INDEX RTENCKEX # RECYCLE
039209,000466: 36,3234 10003 TCF 0 +3
039210,000467:
039211,000468: # SUBROUTINE TO GO TO GOFLASH
039212,000469:
|
|
Page 899
|
039214,000471: 36,3235 00006 P370GOF EXTEND
039215,000472: 36,3236 23762 QXCH SPRTEX
039216,000473: 36,3237 04662 TCR BANKCALL
039217,000474: 36,3240 20720 CADR GOFLASH
039218,000475: 36,3241 14106 TCF GOTOPOOH
039219,000476: 36,3242 13244 TCF +2
039220,000477: 36,3243 01762 TC SPRTEX
039221,000478: 36,3244 51762 P37PROC INDEX SPRTEX
039222,000479: 36,3245 10001 TCF 0 +1
039223,000480: 36,3246 01441 V6N33RTE VN 0633
039224,000481: 36,3247 01006 V4N06RTE VN 0406
039225,000482: 36,3250 01475 V6N61RTE VN 0661
039226,000483: 36,3251 01447 V6N39RTE VN 0639
039227,000484: 36,3252 01474 V6N60RTE VN 0660
039228,000485: 36,3253 01521 V6N81RTE VN 0681
039229,000486: 32,2262 BANK 32
039230,000487: 32,2000 SETLOC RTE
039231,000488: 32,2000 BANK
039232,000489: 32,2262 COUNT 32/RTE
039233,000490:
|
|
Page 900
|
039235,000492: # ALARM DISPLAY SUBROUTINE
039236,000493:
039237,000494: 32,2262 77420 P370ALRM STQ EXIT
039238,000495: 32,2263 03762 SPRTEX
039239,000496: 32,2264 30154 CA MPAC
039240,000497: 32,2265 05764 TC VARALARM
039241,000498: 32,2266 32276 CAF V5N09RTE
039242,000499: 32,2267 04662 TC BANKCALL
039243,000500: 32,2270 20720 CADR GOFLASH
039244,000501: 32,2271 14106 TCF GOTOPOOH
039245,000502: 32,2272 12266 TCF -4
039246,000503: 32,2273 06006 TC INTPRET
039247,000504: 32,2274 77650 GOTO
039248,000505: 32,2275 03762 SPRTEX
039249,000506: 32,2276 01211 V5N09RTE VN 0509
039250,000507:
|
|
Page 901
|
039252,000509: # TIME RADIUS CALLING SUBROUTINE
039253,000510:
039254,000511: # INPUT
039255,000512: # RVEC INITIAL POSITION VECTOR VECTOR B29 METERS
039256,000513: # VVEC INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039257,000514: # RDESIRED FINAL RADIUS FOR WHICH TRANSFER TIME IS TO BE COMPUTED DP B29 METERS
039258,000515: # CONICX1 X1 SETTING FOR CONIC SUBROUTINES -2=EARTH SP B14
039259,000516:
039260,000517: # OUTPUT
039261,000518: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039262,000519: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039263,000520: # T12 TRANSFER TIME TO FINAL RADIUS DP B28 CS
039264,000521:
039265,000522: 32,2277 43020 TMRAD100 STQ CLEAR
039266,000523: 32,2300 03733 RTENCKEX
039267,000524: 32,2301 03666 RVSW
039268,000525: 32,2302 67164 AXC,2 SXA,2
039269,000526: 32,2303 20000 OCT 20000
039270,000527: 32,2304 02756 SGNRDOT
039271,000528: 32,2305 45140 LXC,1 CALL
039272,000529: 32,2306 03734 CONICX1
039273,000530: 32,2307 25556 TIMERAD
039274,000531: 32,2310 27710 STOVL V(T2)/ # PL00D
039275,000532: 32,2311 77626 STADR
039276,000533: 32,2312 60121 STODL R(T2)/
039277,000534: 32,2313 00037 T
039278,000535: 32,2314 37724 STCALL T12
039279,000536: 32,2315 03733 RTENCKEX
039280,000537:
|
|
Page 902
|
039282,000539: # DISPLAY CALCULATION SUBROUTINE
039283,000540:
039284,000541: # DESCRIPTION
039285,000542: # OUTPUT FOR DISPLAY IS CONVERTED TO PROPER UNITS AND PLACED IN OUTPUT STORAGE REGISTERS. LANDING SITE
039286,000543: # COMPUTATION FOR DETERMINING LANDING SITE LATITUDE AND LONGITUDE IS INCLUDED IN THE ROUTINE.
039287,000544:
039288,000545: # CALLING SEQUENCE
039289,000546: # L CALL
039290,000547: # L+1 RTEDISP
039291,000548:
039292,000549: # SUBROUTINES CALLED
039293,000550: # TMRAD100
039294,000551: # AUGEKUGL
039295,000552: # LAT-LONG
039296,000553:
039297,000554: # ERASABLE INITIALIZATION REQUIRED
039298,000555: # PUSHLIST
039299,000556: # NONE
039300,000557: # MPAC
039301,000558: # NONE
039302,000559: # OTHER
039303,000560: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039304,000561: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039305,000562: # T2 FINAL TIME DP B28 CS
039306,000563: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039307,000564: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039308,000565: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039309,000566: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039310,000567:
039311,000568: # OUTPUT
039312,000569: # VPRED VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE DP B7 METERS/CS
039313,000570: # T3TOT4 TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE DP B28 CS
039314,000571: # GAMMAEI FLIGHT PATH ANGLE AT 400,000 FT. ENTRY ALTITUDE DP B0 REVS + ABOVE HORIZ
039315,000572: # DELVLVC INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR B7 METERS/CS
039316,000573: # LAT(SPL) LATITUDE OF THE LANDING SITE DP B0 REVS
039317,000574: # LNG(SPL) LONGITUDE OF THE LANDING SITE DP B0 REVS
039318,000575:
039319,000576: 32,2316 77220 RTEDISP STQ VLOAD # DISPLAY
039320,000577: 32,2317 03762 SPRTEX
039321,000578: 32,2320 03710 V(T2)/
039322,000579: 32,2321 65256 UNIT PDDL
039323,000580: 32,2322 00045 36D
039324,000581: 32,2323 17767 STODL VPRED # V(T2)
039325,000582: 32,2324 03736 T2
039326,000583: 32,2325 77625 DSU
039327,000584: 32,2326 03413 SPRTETIG
039328,000585: 32,2327 26641 STOVL T3TOT4 # T21
039329,000586: 32,2330 03656 R(T2)/
039330,000587: 32,2331 50256 UNIT DOT
039331,000588: 32,2332 77752 SL1
039332,000589:
|
|
Page 903
|
039334,000591: 32,2333 44326 ARCCOS BDSU
039335,000592: 32,2334 33502 1RTEB2
039336,000593: 32,2335 27771 STOVL GAMMAEI # FLIGHT PATH ANGLE T2
039337,000594: 32,2336 03700 V2(T1)/
039338,000595: 32,2337 41451 VSU PUSH
039339,000596: 32,2340 03672 V(T1)/
039340,000597: 32,2341 57441 DOT DCOMP
039341,000598: 32,2342 03740 UR1/
039342,000599: 32,2343 41515 PDVL PUSH
039343,000600: 32,2344 63345 DLOAD PDVL
039344,000601: 32,2345 33524 ZERORTE
039345,000602: 32,2346 55441 DOT VDEF
039346,000603: 32,2347 03746 UH/
039347,000604: 32,2350 77772 VSL1
039348,000605: 32,2351 17405 STODL DELVLVC
039349,000606: 32,2352 03405 DELVLVC
039350,000607: 32,2353 57414 BOFF DCOMP
039351,000608: 32,2354 02741 RETROFLG
039352,000609: 32,2355 64357 RTD18
039353,000610: 32,2356 03405 STORE DELVLVC # NEGATE X COMPONENT, RETROGRADE
039354,000611: 32,2357 51575 RTD18 VLOAD ABVAL
039355,000612: 32,2360 03405 DELVLVC
039356,000613: 32,2361 27773 STOVL VGDISP
039357,000614: 32,2362 03656 R(T2)/
039358,000615: 32,2363 02657 STORE RVEC # ***** LANDING SITE COMPUTATION *****
039359,000616: 32,2364 45246 ABVAL DSU
039360,000617: 32,2365 33550 30480RTE
039361,000618: 32,2366 26760 STOVL RDESIRED
039362,000619: 32,2367 03710 V(T2)/
039363,000620: 32,2370 36746 STCALL VVEC
039364,000621: 32,2371 64277 TMRAD100 # R3,V3,T23 FROM TIMERAD
039365,000622: 32,2372 53575 VLOAD UNIT
039366,000623: 32,2373 03656 R(T2)/
039367,000624: 32,2374 53515 PDVL UNIT # UR3 PL06D
039368,000625: 32,2375 03710 V(T2)/
039369,000626: 32,2376 72441 DOT SL1 # GAMMAE=ARCSIN(UR3 . UV3) PL00D
039370,000627: 32,2377 65336 ARCSIN PDDL # V(T3) PL02D
039371,000628: 32,2400 00045 36D
039372,000629: 32,2401 51525 PDDL ABS
039373,000630: 32,2402 45006 PUSH CALL # /GAMMAE/ PL04D
039374,000631: 32,2403 64075 AUGEKUGL # PHIE PL06D
039375,000632: 32,2404 43215 DAD DAD
039376,000633: 32,2405 03724 T12 # T23
039377,000634: 32,2406 03736 T2
039378,000635: 32,2407 00003 STORE 02D # T(LS)=T2&T23&TE
039379,000636: 32,2410 53135 SLOAD BZE
039380,000637: 32,2411 03377 P37RANGE
039381,000638: 32,2412 64414 RTD22
039382,000639: 32,2413 00005 STORE 04D # OVERRIDE RANGE (PCR 261)
039383,000640: 32,2414 73545 RTD22 DLOAD SIN
039384,000641:
|
|
Page 904
|
039386,000643: 32,2415 00005 04D
039387,000644: 32,2416 17403 STODL LNG(SPL) # LNG(SPL)=SIN(PHIE) PL04D
039388,000645: 32,2417 77746 COS
039389,000646: 32,2420 03401 STORE LAT(SPL) # LAT(SPL)=COS(PHIE)
039390,000647: 32,2421 53575 VLOAD UNIT
039391,000648: 32,2422 03656 R(T2)/
039392,000649: 32,2423 41406 PUSH PUSH
039393,000650: 32,2424 53515 PDVL UNIT # PL22D
039394,000651: 32,2425 03710 V(T2)/
039395,000652: 32,2426 47315 PDVL VXV
039396,000653: 32,2427 53435 VXV UNIT # UH3=UNIT(UR3 X UV3 X UR3) PL10D
039397,000654: 32,2430 63361 VXSC PDVL
039398,000655: 32,2431 03403 LNG(SPL)
039399,000656: 32,2432 53361 VXSC VAD # PL04D
039400,000657: 32,2433 03401 LAT(SPL)
039401,000658: 32,2434 43014 CLEAR CLEAR # T(LS) IN MPAC
039402,000659: 32,2435 00662 ERADFLAG
039403,000660: 32,2436 01663 LUNAFLAG
039404,000661: 32,2437 16152 STODL ALPHAV # ALPHAV=UR3(COSPHIE)+UH3(SINPHIE) PL02D
039405,000662: 32,2440 77624 CALL
039406,000663: 32,2441 26370 LAT-LONG
039407,000664: 32,2442 77745 DLOAD
039408,000665: 32,2443 01104 LAT
039409,000666: 32,2444 17401 STODL LAT(SPL) # LATITUDE LANDING SITE *****
039410,000667: 32,2445 01106 LONG
039411,000668: 32,2446 37403 STCALL LNG(SPL) # LONGITUDE LANDING SITE *****
039412,000669: 32,2447 03762 SPRTEX
039413,000670: 32,2450 COUNT* $$/RTE
039414,000671:
|
|
Page 905
|
039416,000673: # INITIAL VECTOR SUBROUTINE
039417,000674:
039418,000675: # DESCRIPTION
039419,000676: # A PRECISION INTEGRATION OF THE STATE VECTOR TO THE TIME OF IGNITION IS PERFORMED. PRECOMPUTATIONS OCCUR.
039420,000677:
039421,000678: # CALLING SEQUENCE
039422,000679: # L CALL
039423,000680: # L+1 INVC100
039424,000681:
039425,000682: # NORMAL EXIT MODE
039426,000683: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
039427,000684:
039428,000685: # ALARM EXIT MODE
039429,000686: # AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 612 FOR STATE VECTOR IN MOONS SPHERE OF INFLUENCE
039430,000687:
039431,000688: # SUBROUTINES CALLED
039432,000689: # CSMPREC
039433,000690:
039434,000691: # ERASABLE INITIALIZATION REQUIRED
039435,000692: # PUSHLIST
039436,000693: # NONE
039437,000694: # MPAC
039438,000695: # NONE
039439,000696: # OTHER
039440,000697: # SPRTETIG TIME OF IGNITION DP B28 CS
039441,000698: # CSM STATE VECTOR
039442,000699:
039443,000700: # OUTPUT
039444,000701: # R(T1)/ INITIAL POSITION VECTOR AT TIG VECTOR B29 METERS
039445,000702: # V(T1)/ INITIAL VELOCITY VECTOR AT TIG VECTOR B7 METERS/CS
039446,000703: # T1 INITIAL VECTOR TIME (TIG) DP B28 CS
039447,000704: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039448,000705: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039449,000706: # CFPA COSINE OF INITIAL FLIGHT PATH ANGLE DP B1
039450,000707:
039451,000708: 32,2450 71220 INVC100 STQ DLOAD
039452,000709: 32,2451 03762 SPRTEX
039453,000710: 32,2452 03413 SPRTETIG
039454,000711: 32,2453 34041 STCALL TDEC1
039455,000712: 32,2454 27071 CSMPREC # PRECISION INTEGRATION R0,V0 TO R1,V1
039456,000713: 32,2455 67175 VLOAD SXA,2
039457,000714: 32,2456 00001 RATT
039458,000715: 32,2457 03755 P(T1)
039459,000716: 32,2460 27640 STOVL R(T1)/
039460,000717: 32,2461 00007 VATT
039461,000718: 32,2462 17672 STODL V(T1)/
039462,000719: 32,2463 00015 TAT
039463,000720: 32,2464 03716 STORE T1
039464,000721: 32,2465 53135 SLOAD BZE
039465,000722: 32,2466 03756 P(T1)
|
|
Page 906
|
039467,000724: 32,2467 64473 INVC109
039468,000725: 32,2470 52135 INVC107 SLOAD GOTO
039469,000726: 32,2471 33563 OCT612
039470,000727: 32,2472 74776 RTEALRM # R1,V1 NOT IN PROPER SPHERE OF INFLUENCE
039471,000728: 32,2473 53575 INVC109 VLOAD UNIT
039472,000729: 32,2474 03640 R(T1)/
039473,000730: 32,2475 17740 STODL UR1/ # UR1/ B1
039474,000731: 32,2476 00045 36D
039475,000732: 32,2477 27646 STOVL R(T1) # R(T1) B29
039476,000733: 32,2500 03672 V(T1)/
039477,000734: 32,2501 77656 UNIT
039478,000735: 32,2502 03746 STORE UV1/
039479,000736: 32,2503 72441 DOT SL1
039480,000737: 32,2504 03740 UR1/
039481,000738: 32,2505 03757 STORE CFPA # CFPA B1
039482,000739: 32,2506 45246 ABS DSU
039483,000740: 32,2507 33576 EPC1RTE
039484,000741: 32,2510 71240 BMN DLOAD
039485,000742: 32,2511 64520 INVC115 # NOT NEAR RECTILINEAR
039486,000743: 32,2512 33502 1RTEB2
039487,000744: 32,2513 41525 PDDL PUSH
039488,000745: 32,2514 33524 ZERORTE
039489,000746: 32,2515 41466 VDEF PUSH # N/ = (0,0,1)
039490,000747: 32,2516 77650 GOTO
039491,000748: 32,2517 64524 INVC120
039492,000749: 32,2520 47375 INVC115 VLOAD VXV
039493,000750: 32,2521 03740 UR1/
039494,000751: 32,2522 03746 UV1/
039495,000752: 32,2523 77606 PUSH # N/ = UR X UV B2
039496,000753: 32,2524 71214 INVC120 CLEAR DLOAD
039497,000754: 32,2525 02661 RETROFLG
039498,000755: 32,2526 51006 PUSH BPL
039499,000756: 32,2527 64533 INVC125
039500,000757: 32,2530 57575 VLOAD VCOMP # RETROGRADE ORBIT
039501,000758: 32,2531 43006 PUSH SET
039502,000759: 32,2532 02461 RETROFLG
039503,000760: 32,2533 77775 INVC125 VLOAD
039504,000761: 32,2534 53435 VXV UNIT
039505,000762: 32,2535 03740 UR1/
039506,000763: 32,2536 03746 STORE UH/ # UH/ B1
039507,000764: 32,2537 77650 GOTO
039508,000765: 32,2540 03762 SPRTEX
039509,000766:
|
|
Page 907
|
039511,000768: # PRECISION TRAJECTORY COMPUTATION SUBROUTINE
039512,000769:
039513,000770: # DESCRIPTION
039514,000771: # A NUMERICALLY INTEGRATED TRAJECTORY IS GENERATED WHICH FOR THE RETURN TO EARTH PROBLEM SATISFIES THE REENTRY
039515,000772: # CONSTRAINTS (RCON AND X(T2)) ACHIEVED BY THE INITIAL CONIC TRAJECTORY AND MEETS THE DVD REQUIREMENT AS CLOSELY
039516,000773: # AS POSSIBLE.
039517,000774:
039518,000775: # CALLING SEQUENCE
039519,000776: # L CALL
039520,000777: # L+1 PREC100
039521,000778:
039522,000779: # NORMAL EXIT MODE
039523,000780: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
039524,000781:
039525,000782: # ALARM EXIT MODE
039526,000783: # AT L+2 OF CALLING SEQUENCE WITH MPAC =
039527,000784: # OCTAL 605 FOR EXCESS ITERATIONS
039528,000785: # OCTAL 613 FOR REENTRY ANGLE OUT OF LIMITS
039529,000786:
039530,000787: # SUBROUTINES CALLED
039531,000788: # INTSTALL
039532,000789: # RTENCK2
039533,000790: # RTENCK3
039534,000791: # TIMERAD
039535,000792: # PARAM
039536,000793: # V2T100
039537,000794:
039538,000795: # ERASABLE INITIALIZATION REQUIRED
039539,000796: # PUSHLIST
039540,000797: # NONE
039541,000798: # MPAC
039542,000799: # NONE
039543,000800: # OTHER
039544,000801: # R(T1)/ INITIAL POSITION VECTOR VECTOR B29/B27 METERS
039545,000802: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
039546,000803: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
039547,000804: # T1 INITIAL VECTOR TIME DP B28 CS
039548,000805: # T12 INITIAL TO FINAL POSITION TIME DP B28 CS
039549,000806: # RCON CONIC FINAL RADIUS DP B29/B27 METERS
039550,000807: # R(T1) MAGNITUDE OF INITIAL POSITION VECTOR DP B29/B27 METERS
039551,000808: # X(T2) COTANGENT OF FINAL FLIGHT PATH ANGLE DP B0
039552,000809: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE DP B5
039553,000810: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
039554,000811: # MAMAX1 MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
039555,000812: # MAMAX2 MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
039556,000813: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039557,000814: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039558,000815: # BETA1 1+X(T2)**2 DP B1
039559,000816: # PHI2 PERIGEE OR APOGEE INDICATOR DP B2 -1 PERIGEE, +1 APOGEE
039560,000817:
|
|
Page 908
|
039562,000819:
039563,000820: # OUTPUT
039564,000821: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039565,000822: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039566,000823: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039567,000824: # T2 FINAL TIME DP B28 CENTISECONDS
039568,000825:
039569,000826: # DEBRIS
039570,000827: # RD FINAL R DESIRED DP B29/B27 METERS
039571,000828: # R/APRE R/A DP B6
039572,000829: # P/RPRE P/R DP B4
039573,000830: # RPRE MAGNITUDE OF R(T2)/ DP B29/B27 METERS
039574,000831: # X(T2)PRE COTANGENT OF GAMMA2 DP B0
039575,000832: # DT12 CORRECTION TO FINAL TIME T2 DP B28 CENTISECONDS
039576,000833: # RCON FINAL RADIUS DP B29/B27 METERS
039577,000834: # DRCON DELTA RCON DP B29/B27 METERS
039578,000835:
039579,000836: 32,2541 71220 PREC100 STQ DLOAD
039580,000837: 32,2542 03762 SPRTEX
039581,000838: 32,2543 33532 10RTE
039582,000839: 32,2544 17730 STODL NN1A
039583,000840: 32,2545 03636 RCON
039584,000841: 32,2546 03664 STORE RD
039585,000842: 32,2547 77745 PREC120 DLOAD
039586,000843: 32,2550 33542 2RTEB1
039587,000844: 32,2551 17650 STODL DT21PR # DT21PR = POSMAX
039588,000845: 32,2552 33530 M15RTE
039589,000846: 32,2553 37732 STCALL NN2
039590,000847: 32,2554 63726 RTENCK3
039591,000848: 32,2555 77624 PREC125 CALL
039592,000849: 32,2556 11637 PARAM
039593,000850: 32,2557 77745 DLOAD
039594,000851: 32,2560 02742 P
039595,000852: 32,2561 14033 STODL P/RPRE
039596,000853: 32,2562 02744 R1A
039597,000854: 32,2563 14035 STODL R/APRE
039598,000855: 32,2564 00041 R1
039599,000856: 32,2565 14031 STODL RPRE
039600,000857: 32,2566 03775 COGA
039601,000858: 32,2567 77661 SL
039602,000859: 32,2570 20206 5
039603,000860: 32,2571 03724 STORE X(T2)PRE
039604,000861: 32,2572 43276 DCOMP DAD
039605,000862: 32,2573 03726 X(T2)
039606,000863: 32,2574 45246 ABS DSU
039607,000864: 32,2575 33604 EPC4RTE
039608,000865: 32,2576 50000 BOV BMN
039609,000866: 32,2577 64601 PREC130
039610,000867: 32,2600 64770 PREC175
039611,000868:
039612,000869: # DESIRED REENTRY ANGLE NOT ACHIEVED
039613,000870:
|
|
Page 909
|
039615,000872: 32,2601 50145 PREC130 DLOAD BMN
039616,000873: 32,2602 03732 NN2
039617,000874: 32,2603 64607 PREC140
039618,000875: 32,2604 52135 PREC132 SLOAD GOTO # TOO MANY ITERATIONS
039619,000876: 32,2605 33562 OCT605 # EXIT WITH ALARM
039620,000877: 32,2606 65073 PRECX
039621,000878:
039622,000879: # DETERMINE RADIUS AT WHICH THE DESIRED REENTRY ANGLE WILL BE ACHIEVED
039623,000880:
039624,000881: 32,2607 53145 PREC140 DLOAD BZE
039625,000882: 32,2610 03730 NN1A
039626,000883: 32,2611 64647 PREC162
039627,000884: 32,2612 62545 PREC150 DLOAD SL2 # B2
039628,000885: 32,2613 00033 P/RPRE
039629,000886: 32,2614 72405 DMP SL1 # BETA2=BETA1*P/R B2 PL02
039630,000887: 32,2615 03754 BETA1
039631,000888: 32,2616 71206 PUSH DLOAD
039632,000889: 32,2617 00035 R/APRE
039633,000890: 32,2620 41212 SL4 DMP
039634,000891: 32,2621 00001 00D
039635,000892: 32,2622 50021 BDSU BMN # BETA3=1-BETA2*R/A
039636,000893: 32,2623 33506 1RTEB4
039637,000894: 32,2624 64637 PREC160
039638,000895: 32,2625 75512 PREC155 SL2 SQRT
039639,000896: 32,2626 44205 DMP BDSU
039640,000897: 32,2627 03761 PHI2
039641,000898: 32,2630 33504 1RTEB3
039642,000899: 32,2631 65301 NORM PDDL
039643,000900: 32,2632 00047 X1
039644,000901: 32,2633 56342 SR1 DDV # BETA4=BETA2/(1-PHI2*SQRT(BETA3))
039645,000902: 32,2634 52057 SL* GOTO # B1
039646,000903: 32,2635 20200 0 -1,1
039647,000904: 32,2636 64655 PREC165
039648,000905: 32,2637 60345 PREC160 DLOAD NORM
039649,000906: 32,2640 00035 R/APRE
039650,000907: 32,2641 00047 X1
039651,000908: 32,2642 53665 BDDV SL* # B1
039652,000909: 32,2643 33500 1RTEB1
039653,000910: 32,2644 20173 0 -6,1
039654,000911: 32,2645 77650 GOTO
039655,000912: 32,2646 64655 PREC165
039656,000913: 32,2647 60345 PREC162 DLOAD NORM
039657,000914: 32,2650 00031 RPRE
039658,000915: 32,2651 00047 X1
039659,000916: 32,2652 53665 BDDV SL* # BETA4=RD/RPRE B1
039660,000917: 32,2653 03664 RD
039661,000918: 32,2654 20200 0 -1,1
039662,000919: 32,2655 41401 PREC165 SETPD PUSH
039663,000920: 32,2656 00001 0
039664,000921: 32,2657 57425 DSU DCOMP
|
|
Page 910
|
039666,000923: 32,2660 33500 1RTEB1
039667,000924: 32,2661 03765 STORE BETA12
039668,000925: 32,2662 71240 BMN DLOAD
039669,000926: 32,2663 64674 PREC168
039670,000927: 32,2664 03724 X(T2)PRE
039671,000928: 32,2665 71240 BMN DLOAD
039672,000929: 32,2666 64672 PREC167
039673,000930: 32,2667 03765 BETA12
039674,000931: 32,2670 77676 DCOMP
039675,000932: 32,2671 03765 STORE BETA12
039676,000933: 32,2672 77745 PREC167 DLOAD
039677,000934: 32,2673 03765 BETA12
039678,000935: 32,2674 45246 PREC168 ABS DSU
039679,000936: 32,2675 33610 EPC6RTE
039680,000937: 32,2676 71240 BMN DLOAD
039681,000938: 32,2677 64770 PREC175
039682,000939: 32,2700 72405 DMP SL1
039683,000940: 32,2701 00031 RPRE
039684,000941: 32,2702 77606 PUSH # RF = NEW RADIUS
039685,000942: 32,2703 43345 PREC170 DLOAD DAD
039686,000943: 32,2704 03732 NN2
039687,000944: 32,2705 33522 1RTEB28
039688,000945: 32,2706 03732 STORE NN2
039689,000946: 32,2707 43175 VLOAD SET
039690,000947: 32,2710 03656 R(T2)/
039691,000948: 32,2711 03466 RVSW
039692,000949: 32,2712 26657 STOVL RVEC
039693,000950: 32,2713 03710 V(T2)/
039694,000951: 32,2714 77765 SIGN
039695,000952: 32,2715 03765 BETA12
039696,000953: 32,2716 16746 STODL VVEC
039697,000954: 32,2717 33500 1RTEB1
039698,000955: 32,2720 57565 SIGN DCOMP
039699,000956: 32,2721 03765 BETA12
039700,000957: 32,2722 71354 LXA,2 DLOAD
039701,000958: 32,2723 00154 MPAC
039702,000959: 32,2724 67140 LXC,1 SXA,2
039703,000960: 32,2725 03734 CONICX1
039704,000961: 32,2726 02756 SGNRDOT
039705,000962: 32,2727 36760 STCALL RDESIRED # COMPUTE DT12 (CORRECTION TO TIME OF
039706,000963: 32,2730 25556 TIMERAD # NEW RADIUS)
039707,000964: 32,2731 75345 DLOAD SIGN
039708,000965: 32,2732 00037 T
039709,000966: 32,2733 03765 BETA12
039710,000967: 32,2734 60325 PDDL NORM # DT21=(PHI4)DT21 PL02D
039711,000968: 32,2735 03650 DT21PR
039712,000969: 32,2736 00047 X1
039713,000970: 32,2737 53665 BDDV SL*
039714,000971: 32,2740 00001 00D
039715,000972: 32,2741 20176 0 -3,1
|
|
Page 911
|
039717,000974: 32,2742 50006 PUSH BMN # BETA13=(DT21)/(DT21PR) B3 PL04D
039718,000975: 32,2743 64750 PREC172
039719,000976: 32,2744 65345 DLOAD PDDL # BETA14=1 B0 PL04D
039720,000977: 32,2745 33542 2RTEB1
039721,000978: 32,2746 77650 GOTO
039722,000979: 32,2747 64752 PREC173
039723,000980: 32,2750 65345 PREC172 DLOAD PDDL # BETA14=.6 B0 PL04D
039724,000981: 32,2751 33534 M.6RTE
039725,000982: 32,2752 45271 PREC173 DDV DSU
039726,000983: 32,2753 00003 02D
039727,000984: 32,2754 33504 1RTEB3
039728,000985: 32,2755 71240 BMN DLOAD
039729,000986: 32,2756 64762 PREC174
039730,000987: 32,2757 77605 DMP
039731,000988: 32,2760 03650 DT21PR
039732,000989: 32,2761 00001 STORE 00D # DT21=(BETA14)DT21PR B28
039733,000990: 32,2762 41545 PREC174 DLOAD PUSH
039734,000991: 32,2763 00001 00D
039735,000992: 32,2764 37650 STCALL DT21PR
039736,000993: 32,2765 63710 RTENCK2
039737,000994: 32,2766 77650 GOTO
039738,000995: 32,2767 64555 PREC125
039739,000996: 32,2770 45345 PREC175 DLOAD DSU
039740,000997: 32,2771 00031 RPRE
039741,000998: 32,2772 03664 RD
039742,000999: 32,2773 51406 PUSH ABS # RPRE-RD = RERR
039743,001000: 32,2774 50025 DSU BMN
039744,001001: 32,2775 33612 EPC7RTE
039745,001002: 32,2776 34703 PREC220
039746,001003:
039747,001004: # DESIRED RADIUS HAS NOT BEEN ACHIEVED
039748,001005:
039749,001006: 32,2777 53145 DLOAD BZE
039750,001007: 32,3000 03730 NN1A
039751,001008: 32,3001 64604 PREC132 # TOO MANY ITERATIONS
039752,001009: 32,3002 53025 DSU BZE
039753,001010: 32,3003 33532 10RTE
039754,001011: 32,3004 65037 PREC207
039755,001012: 32,3005 45345 PREC205 DLOAD DSU # NOT FIRST PASS OF ITERATION
039756,001013: 32,3006 03670 RPRE'
039757,001014: 32,3007 00031 RPRE # RPRE,-RPRE B29/B27
039758,001015: 32,3010 55301 NORM BDDV
039759,001016: 32,3011 00050 X2
039760,001017: 32,3012 03666 DRCON
039761,001018: 32,3013 41457 SL* PUSH # DRCON/(RPRE,-RPRE)=S B2
039762,001019: 32,3014 57600 0 -2,2
039763,001020: 32,3015 40015 DAD BOV # S GR +4 OR LS -4
039764,001021: 32,3016 33500 1RTEB1
039765,001022: 32,3017 65024 PREC205M
039766,001023: 32,3020 45246 ABS DSU
|
|
Page 912
|
039768,001025: 32,3021 33500 1RTEB1
039769,001026: 32,3022 77640 BMN
039770,001027: 32,3023 65027 PREC206
039771,001028: 32,3024 57545 PREC205M DLOAD DCOMP # S GR 0 OR LS -4
039772,001029: 32,3025 33542 2RTEB1
039773,001030: 32,3026 77725 PDDL # S=-4 B2
039774,001031: 32,3027 41345 PREC206 DLOAD DMP
039775,001032: 32,3030 77712 SL2
039776,001033: 32,3031 03666 STORE DRCON # DRCON=S(RERR) B29
039777,001034: 32,3032 77615 DAD
039778,001035: 32,3033 03636 RCON
039779,001036: 32,3034 03636 STORE RCON # RCON+DRCON=RCON
039780,001037: 32,3035 77650 GOTO
039781,001038: 32,3036 65056 PREC210
039782,001039: 32,3037 63545 PREC207 DLOAD DSQ # FIRST PASS OF ITERATION
039783,001040: 32,3040 03664 RD
039784,001041: 32,3041 70501 NORM SR1
039785,001042: 32,3042 00047 X1
039786,001043: 32,3043 60325 PDDL NORM
039787,001044: 32,3044 00031 RPRE
039788,001045: 32,3045 00050 X2
039789,001046: 32,3046 55260 XSU,1 BDDV
039790,001047: 32,3047 00047 X2
039791,001048: 32,3050 77657 SR*
039792,001049: 32,3051 20600 0 -1,1
039793,001050: 32,3052 03636 STORE RCON # RD**2/RPRE=RCON
039794,001051: 32,3053 77625 DSU
039795,001052: 32,3054 03664 RD
039796,001053: 32,3055 03666 STORE DRCON # RCON-RD=DRCON
039797,001054: 32,3056 77745 PREC210 DLOAD # PREPARE FOR NEXT ITERATION
039798,001055: 32,3057 00031 RPRE
039799,001056: 32,3060 17670 STODL RPRE'
039800,001057: 32,3061 03730 NN1A
039801,001058: 32,3062 77625 DSU
039802,001059: 32,3063 33522 1RTEB28
039803,001060: 32,3064 37730 STCALL NN1A
039804,001061: 32,3065 65075 V2T100
039805,001062: 32,3066 52030 BHIZ GOTO
039806,001063: 32,3067 64547 PREC120
039807,001064: 32,3070 65073 PRECX
039808,001065:
039809,001066: # DESIRED RADIUS ACHIEVED
039810,001067:
039811,001068: 16,2000 SETLOC RTE2
039812,001069: 16,2000 BANK
039813,001070: 16,2703 45345 PREC220 DLOAD DSU
039814,001071: 16,2704 03726 X(T2)
039815,001072: 16,2705 03724 X(T2)PRE
039816,001073: 16,2706 45246 ABS DSU
039817,001074: 16,2707 34716 EPC8RTE
|
|
Page 913
|
039819,001076: 16,2710 67240 BMN SLOAD
039820,001077: 16,2711 65071 PREC225
039821,001078: 16,2712 34720 OCT613
039822,001079: 16,2713 77650 GOTO
039823,001080: 16,2714 65073 PRECX # IF REENTRY ANGLE OUT OF LIMITS
039824,001081:
039825,001082: 16,2715 00040 30447 EPC8RTE 2DEC .002
039826,001083:
039827,001084: 16,2717 00613 OCT613 OCT 613
039828,001085:
039829,001086: # DESIRED FINAL ANGLE HAS BEEN REACHED
039830,001087:
039831,001088: 32,2000 SETLOC RTE
039832,001089: 32,2000 BANK
039833,001090: 32,3071 77745 PREC225 DLOAD
039834,001091: 32,3072 33524 ZERORTE
039835,001092: 32,3073 77650 PRECX GOTO
039836,001093: 32,3074 03762 SPRTEX
039837,001094:
|
|
Page 914
|
039839,001096: # INTEGRATION CALLING SUBROUTINE
039840,001097:
039841,001098: # DESCRIPTION
039842,001099: # PERFORMS CONIC AND PRECISION INTEGRATIONS USING SUBROUTINE INTEGRVS. THERE ARE THREE ENTRANCES (RTENCK1,
039843,001100: # RTENCK2 AND RTENCK3) FOR DIFFERENT SOURCES OF INPUT AND DIFFERENT OPTIONS. THERE IS A COMMON SET OF OUTPUT
039844,001101: # WHICH INCLUDES SET UP OF INPUT FOR THE PARAM SUBROUTINE
039845,001102:
039846,001103: # RTENCK1 (CONIC INTEGRATION)
039847,001104:
039848,001105: # CALLING SEQUENCE
039849,001106: # L CALL
039850,001107: # L+1 RTENCK1
039851,001108:
039852,001109: # ERASABLE INITIALIZATION REQUIRED
039853,001110: # SAME AS FOR THE RTENCK3 ENTRANCE
039854,001111:
039855,001112: # RTENCK2 (PRECISION INTEGRATION)
039856,001113:
039857,001114: # CALLING SEQUENCE
039858,001115: # L CALL
039859,001116: # L+1 RTENCK2
039860,001117:
039861,001118: # ERASABLE INITIALIZATION REQUIRED
039862,001119: # PUSHLIST
039863,001120: # PUSHLOC-2 INTEGRATION TIME DT12 (CORRECTION TO T2) DP B28 CS
039864,001121: # OTHER
039865,001122: # R(T2)/ FINAL POSITION VECTOR VECTOR .B29 METERS
039866,001123: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039867,001124: # T2 FINAL TIME DP B28 CS
039868,001125:
039869,001126: # RTENCK3 (PRECISION INTEGRATION)
039870,001127:
039871,001128: # CALLING SEQUENCE
039872,001129: # L CALL
039873,001130: # L+1 RTENCK3
039874,001131:
039875,001132: # ERASABLE INITIALIZATION REQUIRED
039876,001133: # R(T1)/ INITIAL POSITION VECTOR VECTOR B29 METERS
039877,001134: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 M/CS
039878,001135: # T1 INITIAL VECTOR TIME DP B28 CS
039879,001136: # T2 FINAL TIME DP B28 CS
039880,001137:
039881,001138: # EXIT MODE
039882,001139: # AT L+2 OF CALLING SEQUENCE
039883,001140:
039884,001141: # SUBROUTINES CALLED
039885,001142: # INTSTALL
039886,001143: # INTEGRVS
039887,001144:
039888,001145: # OUTPUT
039889,001146: # PUSHLIST
|
|
Page 915
|
039891,001148: # PUSHLOC-6 FINAL POSITION VECTOR R(T2)/ VECTOR B29 METERS
039892,001149: # X1 CONICS MUTABLE ENTRY FOR EARTH (-2) SP B14
039893,001150: # MPAC
039894,001151: # FINAL VELOCITY VECTOR V(T2)/ VECTOR B7 M/CS
039895,001152: # OTHER
039896,001153: # R(T2)/ AS IN PUSHLIST
039897,001154: # V(T2)/ AS IN MPAC
039898,001155: # T2 FINAL TIME DP B28 CS
039899,001156:
039900,001157: 31,2000 SETLOC RTE3
039901,001158: 31,2000 BANK
039902,001159: 31,3700 45020 RTENCK1 STQ CALL
039903,001160: 31,3701 03733 RTENCKEX
039904,001161: 31,3702 27442 INTSTALL
039905,001162: 31,3703 43175 VLOAD SET
039906,001163: 31,3704 03640 R(T1)/
039907,001164: 31,3705 01473 INTYPFLG
039908,001165: 31,3706 77650 GOTO
039909,001166: 31,3707 63734 RTENCK3B
039910,001167:
039911,001168: 31,3710 45020 RTENCK2 STQ CALL
039912,001169: 31,3711 03733 RTENCKEX
039913,001170: 31,3712 27442 INTSTALL
039914,001171: 31,3713 77214 CLEAR VLOAD
039915,001172: 31,3714 01673 INTYPFLG
039916,001173: 31,3715 03656 R(T2)/
039917,001174: 31,3716 25535 STOVL RCV
039918,001175: 31,3717 03710 V(T2)/
039919,001176: 31,3720 15543 STODL VCV
039920,001177: 31,3721 03736 T2
039921,001178: 31,3722 01517 STORE TET
039922,001179: 31,3723 77615 DAD
039923,001180: 31,3724 77650 GOTO
039924,001181: 31,3725 63742 RTENCK3D
039925,001182:
039926,001183: 31,3726 45020 RTENCK3 STQ CALL
039927,001184: 31,3727 03733 RTENCKEX
039928,001185: 31,3730 27442 INTSTALL
039929,001186: 31,3731 43175 RTENCK3A VLOAD CLEAR
039930,001187: 31,3732 03640 R(T1)/
039931,001188: 31,3733 01673 INTYPFLG
039932,001189: 31,3734 25535 RTENCK3B STOVL RCV
039933,001190: 31,3735 03700 V2(T1)/
039934,001191: 31,3736 15543 STODL VCV
039935,001192: 31,3737 03716 T1
039936,001193: 31,3740 15517 STODL TET
039937,001194: 31,3741 03736 T2
|
|
Page 916
|
039939,001196: 31,3742 00041 RTENCK3D STORE TDEC1
039940,001197: 31,3743 45014 CLEAR CALL
039941,001198: 31,3744 00263 MOONFLAG
039942,001199: 31,3745 27135 INTEGRVS
039943,001200: 31,3746 77775 VLOAD
039944,001201: 31,3747 00001 RATT
039945,001202: 31,3750 03656 STORE R(T2)/
039946,001203: 31,3751 70125 PDDL LXC,1
039947,001204: 31,3752 00015 TAT
039948,001205: 31,3753 03734 CONICX1
039949,001206: 31,3754 27736 STOVL T2
039950,001207: 31,3755 00007 VATT
039951,001208: 31,3756 03710 STORE V(T2)/
039952,001209: 31,3757 77650 GOTO
039953,001210: 31,3760 03733 RTENCKEX
039954,001211: 32,2000 SETLOC RTE
039955,001212: 32,2000 BANK
039956,001213:
|
|
Page 917
|
039958,001215: # V2(T1) COMPUTATION SUBROUTINE
039959,001216:
039960,001217: # DESCRIPTION
039961,001218: # A POST IMPULSE VELOCITY VECTOR (V2(T1)) IS COMPUTED WHICH EITHER
039962,001219: # (1) MEETS THE INPUT VELOCITY CHANGE DESIRED (RTEDVD) IN A MINIMUM TIME OR
039963,001220: # (2) IF A VELOCITY CHANGE ISN:T SPECIFIED (RTEDVD) = 0), A V2(T1) IS COMPUTED WHICH MINIMIZES THE IMPULSE (DV)
039964,001221: # AND CONSEQUENTLY FUEL.
039965,001222:
039966,001223: # CALLING SEQUENCE
039967,001224: # L CALL
039968,001225: # L+1 V2T100
039969,001226:
039970,001227: # NORMAL EXIT MODE
039971,001228: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
039972,001229:
039973,001230: # ALARM EXIT MODE
039974,001231: # AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS
039975,001232:
039976,001233: # SUBROUTINES CALLED
039977,001234: # GAMDV10
039978,001235: # XT1LIM
039979,001236: # DVCALC
039980,001237:
039981,001238: # ERASABLE INITIALIZATION REQUIRED
039982,001239: # PUSHLIST
039983,001240: # NONE
039984,001241: # MPAC
039985,001242: # NONE
039986,001243: # OTHER
039987,001244: # R(T1) MAGNITUDE OF INITIAL POSITION VECTOR DP B29/B27 METERS
039988,001245: # RCON MAGNITUDE OF FINAL POSITION VECTOR DP B29/B27 METERS
039989,001246: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
039990,001247: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
039991,001248: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039992,001249: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039993,001250: # X(T2) COTANGENT OF FINAL FLIGHT PATH ANGLE DP B0
039994,001251: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (INPUT FOR PREC) DP B5
039995,001252: # CFPA COSINE OF INITIAL FLIGHT PATH ANGLE DP B1
039996,001253: # MAMAX1 MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
039997,001254: # MAMAX2 MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
039998,001255: # PHI2 REENTRY NEAR PERIGEE OR APOGEE INDICATE (RTE ONLY) DP B2 -1 PERIGEE, +1 APOGEE
039999,001256: # N1 CONIC OR PRECISION ITERATION COUNTER DP B28 NEGATIVE CONIC,PLUS PREC
040000,001257:
040001,001258: # OUTPUT
040002,001259: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040003,001260: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040004,001261: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (POST IMPULSE) DP B5
040005,001262: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040006,001263: # BETA1 1+X(T2)**2 DP B1
040007,001264:
|
|
Page 918
|
040009,001266:
040010,001267: # DEBRIS
040011,001268: # PUSHLIST
040012,001269: # 00D X(T1),,=PREVIOUS PRECISION X(T1) DP B5
040013,001270: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040014,001271: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040015,001272: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040016,001273: # 10D X(T1)MIN=LOWER BOUND ON X(T1) IN GAMDV ITERATOR DP B5
040017,001274: # 12D DX(T1)MAX=MAXIMUM DELTA X(T1) DP B5
040018,001275: # 14D X(T1)MAX=UPPER BOUND ON X(T1) IN GAMDV ITERATOR DP B5
040019,001276: # 16D DX(T1)=ITERATOR INCREMENT DP B5
040020,001277: # 31D GAMDV10 SUBROUTINE RETURN ADDRESS
040021,001278: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040022,001279: # 33D V2T100 SUBROUTINE RETURN ADDRESS
040023,001280:
040024,001281: 32,3075 71220 V2T100 STQ DLOAD
040025,001282: 32,3076 00041 33D
040026,001283: 32,3077 03636 RCON
040027,001284: 32,3100 45240 BMN DSU # ABORT IF RCON NEGATIVE
040028,001285: 32,3101 65105 V2TERROR
040029,001286: 32,3102 03646 R(T1)
040030,001287: 32,3103 77640 BMN
040031,001288: 32,3104 65110 V2T101
040032,001289: 32,3105 77776 V2TERROR EXIT # OR IF LAMBDA LESS THAN ONE
040033,001290: 32,3106 05721 TC POODOO # NO SOLUTION IF LAMBDA LESS THAN 1
040034,001291: 32,3107 00610 OCT 00610
040035,001292: 32,3110 43001 V2T101 SETPD CLEAR
040036,001293: 32,3111 00001 0 # PL00D
040037,001294: 32,3112 00272 F2RTE
040038,001295: 32,3113 60345 DLOAD NORM
040039,001296: 32,3114 03636 RCON
040040,001297: 32,3115 00047 X1
040041,001298: 32,3116 60325 PDDL NORM
040042,001299: 32,3117 03646 R(T1)
040043,001300: 32,3120 00051 S1
040044,001301: 32,3121 00013 STORE 10D
040045,001302: 32,3122 56342 SR1 DDV # R1/RCON = LAMBDA B1
040046,001303: 32,3123 65260 XSU,1 PDDL # PL02D
040047,001304: 32,3124 00050 S1
040048,001305: 32,3125 03726 X(T2)
040049,001306: 32,3126 77716 DSQ
040050,001307: 32,3127 43342 SR1 DAD
040051,001308: 32,3130 33500 1RTEB1
040052,001309: 32,3131 03754 STORE BETA1 # 1+X(T2)**2 = BETA1 B1
040053,001310: 32,3132 77605 DMP
040054,001311: 32,3133 00001 00D
040055,001312: 32,3134 00035 STORE 28D # BETAI*LAMBDA = BETA5
040056,001313: 32,3135 53605 DMP SL*
040057,001314: 32,3136 00001 00D
040058,001315: 32,3137 20172 0 -7,1
040059,001316: 32,3140 45257 SL* DSU
|
|
Page 919
|
040061,001318: 32,3141 20172 0 -7,1
040062,001319: 32,3142 33516 1RTEB17
040063,001320: 32,3143 65234 RTB PDDL # BETA5*LAMBDA-1 = THETA1 B17 PL05D
040064,001321: 32,3144 45565 TPMODE
040065,001322: 32,3145 33500 1RTEB1
040066,001323: 32,3146 57457 SR* DCOMP
040067,001324: 32,3147 20601 0,1
040068,001325: 32,3150 41215 DAD DMP
040069,001326: 32,3151 00001 00D
040070,001327: 32,3152 03646 R(T1)
040071,001328: 32,3153 47057 SL* RTB
040072,001329: 32,3154 20172 0 -7D,1
040073,001330: 32,3155 45565 TPMODE
040074,001331: 32,3156 77725 PDDL # 2*R(T1)*(LAMBDA-1)=THETA2 B38/B36 PL08D
040075,001332: 32,3157 33632 RTMURTE
040076,001333: 32,3160 70501 NORM SR1
040077,001334: 32,3161 00050 X2
040078,001335: 32,3162 56264 XSU,2 DDV
040079,001336: 32,3163 00050 S1
040080,001337: 32,3164 00013 10D
040081,001338: 32,3165 65257 SR* PDDL # MU**.5/R(T1)=THETA3 B-4/B-5 PL10D
040082,001339: 32,3166 57170 6,2
040083,001340: 32,3167 03652 MAMAX1
040084,001341: 32,3170 41406 PUSH PUSH # MAMAX1=MA
040085,001342: 32,3171 77624 CALL
040086,001343: 32,3172 65734 XT1LIM
040087,001344: 32,3173 41476 DCOMP PUSH # X(T1)MIN B5 PL12D
040088,001345: 32,3174 40476 DCOMP SR4
040089,001346: 32,3175 41525 PDDL PUSH # DX(T1)MAX B5 PL14D
040090,001347: 32,3176 03654 MAMAX2
040091,001348: 32,3177 45006 PUSH CALL
040092,001349: 32,3200 65734 XT1LIM
040093,001350: 32,3201 50125 PDDL BMN # X(T1)MAX B5 PL16D
040094,001351: 32,3202 03730 NN1A
040095,001352: 32,3203 65206 V2T102
040096,001353: 32,3204 77650 GOTO
040097,001354: 32,3205 65220 V2T110
040098,001355:
040099,001356: # PROCEED HERE IF NOT PRECISION COMPUTATION
040100,001357:
040101,001358: 32,3206 77745 V2T102 DLOAD
040102,001359: 32,3207 03632 RTEDVD
040103,001360: 32,3210 52054 BZE GOTO
040104,001361: 32,3211 65213 V2T105
040105,001362: 32,3212 65314 V2T140
040106,001363: 32,3213 50145 V2T105 DLOAD BMN
040107,001364: 32,3214 03757 CFPA
040108,001365: 32,3215 65314 V2T140
040109,001366: 32,3216 77650 GOTO
040110,001367: 32,3217 65322 V2T145
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|
Page 920
|
040112,001369: # DURING A PRECISION TRAJECTORY ITERATION CONSTRAIN THE INDEPENDENT
040113,001370: # VARIABLE TO INSURE THAT ALL CONICS PASS THROUGH RCON ON THE SAME PASS
040114,001371: # THROUGH X(T2)
040115,001372:
040116,001373: 32,3220 47145 V2T110 DLOAD RTB
040117,001374: 32,3221 33516 1RTEB17
040118,001375: 32,3222 45565 TPMODE
040119,001376: 32,3223 65276 DCOMP PDDL # -1 B17 PL19D
040120,001377: 32,3224 33542 2RTEB1
040121,001378: 32,3225 45257 SR* DSU
040122,001379: 32,3226 20601 0,1
040123,001380: 32,3227 00001 00D
040124,001381: 32,3230 53605 DMP SL*
040125,001382: 32,3231 00035 28D
040126,001383: 32,3232 20172 0 -7,1
040127,001384: 32,3233 76257 SL* TAD
040128,001385: 32,3234 20172 0 -7,1
040129,001386: 32,3235 65234 RTB PDDL # BETA5(2-LAMBDA)-1=BETA6 B17 PL19D
040130,001387: 32,3236 45565 TPMODE
040131,001388: 32,3237 03722 X(T1)
040132,001389: 32,3240 00001 STORE 00D # X(T1),, B5
040133,001390: 32,3241 77751 TLOAD # PL16D
040134,001391: 32,3242 53040 BMN BZE
040135,001392: 32,3243 65250 V2T115
040136,001393: 32,3244 65250 V2T115
040137,001394: 32,3245 52061 SL GOTO
040138,001395: 32,3246 20210 7
040139,001396: 32,3247 65261 V2T120
040140,001397: 32,3250 50145 V2T115 DLOAD BMN
040141,001398: 32,3251 03761 PHI2
040142,001399: 32,3252 65272 V2T125
040143,001400: 32,3253 77676 DCOMP
040144,001401: 32,3254 17761 STODL PHI2
040145,001402: 32,3255 33532 10RTE
040146,001403: 32,3256 03730 STORE NN1A
040147,001404: 32,3257 77650 GOTO
040148,001405: 32,3260 65272 V2T125
040149,001406: 32,3261 47166 V2T120 SQRT RTB
040150,001407: 32,3262 45716 DPMODE
040151,001408: 32,3263 50125 PDDL BMN # BETA6**.5=X(T1)LIM B5 PL18D
040152,001409: 32,3264 03761 PHI2
040153,001410: 32,3265 65300 V2T130
040154,001411: 32,3266 45545 DLOAD STADR # PL16D
040155,001412: 32,3267 77760 STORE 14D # X(T1)LIM = X(T1)MAX
040156,001413: 32,3270 77676 DCOMP
040157,001414: 32,3271 00013 STORE 10D # -X(T1)LIM = X(T1)MIN
040158,001415: 32,3272 53145 V2T125 DLOAD BZE
040159,001416: 32,3273 03722 X(T1)
040160,001417: 32,3274 65314 V2T140
040161,001418: 32,3275 52040 BMN GOTO
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|
Page 921
|
040163,001420: 32,3276 65314 V2T140
040164,001421: 32,3277 65322 V2T145
040165,001422: 32,3300 53145 V2T130 DLOAD BZE
040166,001423: 32,3301 03722 X(T1)
040167,001424: 32,3302 65311 V2T135
040168,001425: 32,3303 71240 BMN DLOAD # PL16D
040169,001426: 32,3304 65311 V2T135
040170,001427: 32,3305 77626 STADR
040171,001428: 32,3306 77764 STORE 10D # X(T1)LIM = X(T1)MIN
040172,001429: 32,3307 77650 GOTO
040173,001430: 32,3310 65322 V2T145
040174,001431: 32,3311 57545 V2T135 DLOAD DCOMP # PL16D
040175,001432: 32,3312 77626 STADR
040176,001433: 32,3313 77760 STORE 14D # -X(T1)LIM = X(T1)MAX
040177,001434: 32,3314 77745 V2T140 DLOAD
040178,001435: 32,3315 00013 10D
040179,001436: 32,3316 17722 STODL X(T1) # X(T1)MIN = X(T1)
040180,001437: 32,3317 00015 12D
040181,001438: 32,3320 52006 PUSH GOTO # DX(T1)MAX = DX(T1) PL18D
040182,001439: 32,3321 65327 V2T150
040183,001440: 32,3322 77745 V2T145 DLOAD
040184,001441: 32,3323 00017 14D
040185,001442: 32,3324 17722 STODL X(T1) # X(T1)MAX = X(T1)
040186,001443: 32,3325 00015 12D
040187,001444: 32,3326 41476 DCOMP PUSH # -DX(T1)MAX = DX(T1) PL18D
040188,001445: 32,3327 77624 V2T150 CALL # GOTO X(T1)-DV ITERATOR
040189,001446: 32,3330 65457 GAMDV10
040190,001447: 32,3331 53145 DLOAD BZE # EXIT IF MINIMUM FUEL MODE
040191,001448: 32,3332 03632 RTEDVD
040192,001449: 32,3333 65455 V2T1X
040193,001450:
040194,001451: # CONTINUE IF TIME CRITICAL MODE
040195,001452:
040196,001453: 32,3334 50025 DSU BMN
040197,001454: 32,3335 03706 DV
040198,001455: 32,3336 65341 V2T155
040199,001456: 32,3337 77650 GOTO
040200,001457: 32,3340 65374 V2T175
040201,001458: 32,3341 50145 V2T155 DLOAD BMN
040202,001459: 32,3342 03730 NN1A
040203,001460: 32,3343 65346 V2T160
040204,001461: 32,3344 77650 GOTO
040205,001462: 32,3345 65416 V2T185
040206,001463:
040207,001464: # CONIC TRAJECTORY COMPUTATION
040208,001465:
040209,001466: 32,3346 53145 V2T160 DLOAD BZE
040210,001467: 32,3347 03722 X(T1)
040211,001468: 32,3350 65354 V2T165
040212,001469: 32,3351 52040 BMN GOTO
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|
Page 922
|
040214,001471: 32,3352 65354 V2T165
040215,001472: 32,3353 65453 V2T300
040216,001473: 32,3354 53145 V2T165 DLOAD BZE
040217,001474: 32,3355 03757 CFPA
040218,001475: 32,3356 65453 V2T300
040219,001476: 32,3357 71240 BMN DLOAD
040220,001477: 32,3360 65453 V2T300
040221,001478: 32,3361 00017 14D
040222,001479: 32,3362 17722 STODL X(T1) # X(T1)MAX=X(T1)
040223,001480: 32,3363 00015 12D
040224,001481: 32,3364 77676 DCOMP
040225,001482: 32,3365 34021 STCALL 16D # -DX(T1)MAX=DX(T1)
040226,001483: 32,3366 65457 GAMDV10
040227,001484: 32,3367 45345 DLOAD DSU
040228,001485: 32,3370 03632 RTEDVD
040229,001486: 32,3371 03706 DV
040230,001487: 32,3372 77640 BMN
040231,001488: 32,3373 65453 V2T300
040232,001489: 32,3374 71214 V2T175 SET DLOAD
040233,001490: 32,3375 00072 F2RTE
040234,001491: 32,3376 03722 X(T1)
040235,001492: 32,3377 77614 BOFF
040236,001493: 32,3400 02742 SLOWFLG
040237,001494: 32,3401 65406 V2T177
040238,001495: 32,3402 14013 STODL 10D # X(T1)MIN
040239,001496: 32,3403 00015 12D # DX(T1)MAX
040240,001497: 32,3404 77650 GOTO
040241,001498: 32,3405 65411 V2T179
040242,001499: 32,3406 14017 V2T177 STODL 14D
040243,001500: 32,3407 00015 12D
040244,001501: 32,3410 77676 DCOMP
040245,001502: 32,3411 34021 V2T179 STCALL 16D # DX(T1)
040246,001503: 32,3412 65457 GAMDV10
040247,001504: 32,3413 50145 DLOAD BMN
040248,001505: 32,3414 03730 NN1A
040249,001506: 32,3415 65453 V2T300
040250,001507:
040251,001508: # PREVENT A LARGE CHANGE IN INDEPENDENT VARIABLE DURING AN ITERATION FOR A
040252,001509: # PRECISION TRAJECTORY
040253,001510:
040254,001511: 32,3416 45345 V2T185 DLOAD DSU
040255,001512: 32,3417 03722 X(T1)
040256,001513: 32,3420 00001 00D
040257,001514: 32,3421 65246 ABS PDDL # /X(T1)-X(T1),,/ = BETA7
040258,001515: 32,3422 00015 12D
040259,001516: 32,3423 44352 SL1 BDSU
040260,001517: 32,3424 71240 BMN DLOAD
040261,001518: 32,3425 65453 V2T300
040262,001519: 32,3426 00001 00D # CONTINUE IF BETA7 LARGER THAN 2DX(T1)MAX
040263,001520: 32,3427 03722 STORE X(T1) # X(T1),, = X(T1)
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|
Page 923
|
040265,001522: 32,3430 50025 DSU BMN
040266,001523: 32,3431 00017 14D
040267,001524: 32,3432 65440 V2T195
040268,001525: 32,3433 77745 DLOAD
040269,001526: 32,3434 00017 14D
040270,001527: 32,3435 03722 STORE X(T1) # X(T1)MAX = X(T1)
040271,001528: 32,3436 77650 GOTO
040272,001529: 32,3437 65451 V2T205
040273,001530: 32,3440 45345 V2T195 DLOAD DSU
040274,001531: 32,3441 03722 X(T1)
040275,001532: 32,3442 00013 10D
040276,001533: 32,3443 52040 BMN GOTO
040277,001534: 32,3444 65446 V2T200
040278,001535: 32,3445 65451 V2T205
040279,001536: 32,3446 77745 V2T200 DLOAD
040280,001537: 32,3447 00013 10D
040281,001538: 32,3450 03722 STORE X(T1) # X(T1)MIN = X(T1)
040282,001539: 32,3451 77624 V2T205 CALL
040283,001540: 32,3452 65660 DVCALC
040284,001541: 32,3453 77745 V2T300 DLOAD
040285,001542: 32,3454 33524 ZERORTE
040286,001543: 32,3455 77650 V2T1X GOTO
040287,001544: 32,3456 00041 33D
040288,001545:
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|
Page 924
|
040290,001547: # X(T1)-DV ITERATOR SUBROUTINE
040291,001548:
040292,001549: # DESCRIPTION
040293,001550: # COMPUTES A POST IMPULSE VELOCITY VECTOR (V2(T1)) WHICH REQUIRES A MINIMUM DV.
040294,001551:
040295,001552: # CALLING SEQUENCE
040296,001553: # L CALL
040297,001554: # L+1 GAMDV10
040298,001555:
040299,001556: # NORMAL EXIT MODE
040300,001557: # AT L+2 OF CALLING SEQUENCE
040301,001558:
040302,001559: # ALARM EXIT MODE
040303,001560: # AT V2T1X WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS
040304,001561:
040305,001562: # SUBROUTINES CALLED
040306,001563: # DVCALC
040307,001564:
040308,001565: # ERASABLE INITIALIZATION REQUIRED
040309,001566: # PUSHLIST
040310,001567: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040311,001568: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040312,001569: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040313,001570: # 10D X(T1)MIN=LOWER BOUND ON INDEPENDENT VARIABLE X(T1) DP B5
040314,001571: # 12D DX(T1)MAX=MAXIMUM DX(T1) DP B5
040315,001572: # 14D X(T1)MAX=UPPER BOUND ON INDEPENDENT VARIABLE X(T1) DP B5
040316,001573: # 16D DX(T1)=ITERATOR INCREMENT DP B5
040317,001574: # MPAC
040318,001575: # NONE
040319,001576: # OTHER
040320,001577: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040321,001578: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
040322,001579: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040323,001580: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040324,001581: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (FROM VERTICAL) DP B5
040325,001582: # F2RTE TIME CRITICAL OR MINIMUM FUEL MODE INDICATOR STATE AREA 0 MIN. FUEL, 1 MIN. TIME
040326,001583:
040327,001584: # OUTPUT
040328,001585: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040329,001586: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040330,001587: # X(T1) COTANGENT OF INITIAL FPA MEASURED FROM VERTICAL DP B5
040331,001588: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040332,001589:
040333,001590: # DEBRIS
040334,001591: # PUSHLIST
040335,001592: # 00D X(T1),,
040336,001593: # 02D THETA1
040337,001594: # 05D THETA2
040338,001595: # 08D THETA3
040339,001596: # 10D X(T1)MIN
040340,001597: # 12D DX(T1)MAX
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|
Page 925
|
040342,001599: # 14D X(T1)MAX
040343,001600: # 16D DX(T1)
040344,001601: # 22D DV,=PREVIOUS DV DP B7/B5
040345,001602: # 24D BETA9=X(T1)+1.1DX(T1) DP B5
040346,001603: # 31D GAMDV10 SUBROUTINE RETURN ADDRESS
040347,001604: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040348,001605: # 33D V2T100 SUBROUTINE RETURN ADDRESS
040349,001606:
040350,001607: 32,3457 77620 GAMDV10 STQ
040351,001608: 32,3460 00037 31D
040352,001609: 32,3461 45001 SETPD CALL
040353,001610: 32,3462 00023 18D # PL18D
040354,001611: 32,3463 65660 DVCALC
040355,001612: 32,3464 45345 DLOAD DSU
040356,001613: 32,3465 00017 14D
040357,001614: 32,3466 00013 10D
040358,001615: 32,3467 77600 BOV
040359,001616: 32,3470 65510 GAMDV20
040360,001617: 32,3471 45206 PUSH DSU # X(T1)MAX-X(T1)MIN=BETA8 B5 PL20D
040361,001618: 32,3472 33614 EPC9RTE
040362,001619: 32,3473 71240 BMN DLOAD
040363,001620: 32,3474 65656 GAMDVX # BOUNDS CLOSE TOGETHER
040364,001621: 32,3475 00023 18D
040365,001622: 32,3476 50025 DSU BMN # BETA8-DX(T1)MAX
040366,001623: 32,3477 00015 12D
040367,001624: 32,3500 65504 GAMDV15
040368,001625: 32,3501 52001 SETPD GOTO # PL18D
040369,001626: 32,3502 00023 18D
040370,001627: 32,3503 65510 GAMDV20
040371,001628: 32,3504 77745 GAMDV15 DLOAD # PL18D
040372,001629: 32,3505 70565 SIGN SR1
040373,001630: 32,3506 00021 16D
040374,001631: 32,3507 00021 STORE 16D # BETA8(SIGNDX(T1))/2=DX(T1)
040375,001632: 32,3510 77745 GAMDV20 DLOAD
040376,001633: 32,3511 33526 M144RTE
040377,001634: 32,3512 03732 STORE NN2
040378,001635: 32,3513 43345 GAMDV25 DLOAD DAD
040379,001636: 32,3514 03732 NN2
040380,001637: 32,3515 33522 1RTEB28
040381,001638: 32,3516 67240 BMN SLOAD
040382,001639: 32,3517 65523 GAMDV30
040383,001640: 32,3520 33562 OCT605
040384,001641: 32,3521 77650 GOTO
040385,001642: 32,3522 65455 V2T1X
040386,001643: 32,3523 03732 GAMDV30 STORE NN2 # NN2=NN2+1
040387,001644: 32,3524 65345 DLOAD PDDL # X(T1)=X(T1), B5 PL20D
040388,001645: 32,3525 03722 X(T1)
040389,001646: 32,3526 03706 DV
040390,001647: 32,3527 43325 PDDL DAD # DV=DV, B7/B5 PL22D
040391,001648: 32,3530 03722 X(T1)
040392,001649: 32,3531 00021 16D
|
|
Page 926
|
040394,001651: 32,3532 37722 STCALL X(T1) # X(T1)+DX(T1)=X(T1) B5
040395,001652: 32,3533 65660 DVCALC
040396,001653: 32,3534 71214 BON DLOAD
040397,001654: 32,3535 00312 F2RTE
040398,001655: 32,3536 65552 GAMDV35
040399,001656: 32,3537 03706 DV
040400,001657: 32,3540 50025 DSU BMN # CONTINUE IF FUEL CRITICAL MODE
040401,001658: 32,3541 00025 20D
040402,001659: 32,3542 65547 GAMDV33
040403,001660: 32,3543 57545 GAMDV32 DLOAD DCOMP
040404,001661: 32,3544 00021 16D
040405,001662: 32,3545 77742 SR1
040406,001663: 32,3546 00021 STORE 16D
040407,001664: 32,3547 52001 GAMDV33 SETPD GOTO
040408,001665: 32,3550 00023 18D # PL18D
040409,001666: 32,3551 65615 GAMDV50
040410,001667:
040411,001668: # TIME CRITICAL MODE
040412,001669:
040413,001670: 32,3552 45345 GAMDV35 DLOAD DSU
040414,001671: 32,3553 03632 RTEDVD
040415,001672: 32,3554 03706 DV
040416,001673: 32,3555 41525 PDDL PUSH # DVD-DV=DVERR B7/B5 PL22D
040417,001674: 32,3556 51545 GAMDV40 DLOAD ABS # DV, PL24D
040418,001675: 32,3557 00025 20D
040419,001676: 32,3560 50025 DSU BMN
040420,001677: 32,3561 33616 EPC10RTE
040421,001678: 32,3562 65656 GAMDVX
040422,001679: 32,3563 71204 GAMDV45 BOVB DLOAD
040423,001680: 32,3564 57352 TCDANZIG # ASSURE OVFIND IS 0
040424,001681: 32,3565 60221 BDSU NORM
040425,001682: 32,3566 03706 DV
040426,001683: 32,3567 00050 X2
040427,001684: 32,3570 77725 PDDL # DV-DV, B7/B5-N2 PL22D
040428,001685: 32,3571 70501 NORM SR1 # DVERR B8/B6-N1
040429,001686: 32,3572 00047 X1
040430,001687: 32,3573 65271 DDV PDDL # DVERR/ DV - DV
040431,001688: 32,3574 41221 BDSU DMP # PL18D
040432,001689: 32,3575 03722 X(T1)
040433,001690: 32,3576 77660 XSU,1
040434,001691: 32,3577 00047 X2
040435,001692: 32,3600 00021 STORE 16D # PRESERVE SIGN IF OVERFLOW
040436,001693: 32,3601 40057 SR* BOV
040437,001694: 32,3602 20600 0 -1,1
040438,001695: 32,3603 65611 GAMDV47
040439,001696: 32,3604 00021 STORE 16D # (X(T1)-X(T1),)DVERR/(DV-DV,)=DX(T1)
040440,001697: 32,3605 45246 ABS DSU
040441,001698: 32,3606 00015 12D
040442,001699: 32,3607 77640 BMN
040443,001700: 32,3610 65615 GAMDV50
|
|
Page 927
|
040445,001702: 32,3611 75345 GAMDV47 DLOAD SIGN
040446,001703: 32,3612 00015 12D
040447,001704: 32,3613 00021 16D
040448,001705: 32,3614 00021 STORE 16D # DX(T1)MAX(SIGNDX(T1))=DX(T1)
040449,001706:
040450,001707: # CHECK TO KEEP INDEPENDENT VARIABLE IN BOUNDS
040451,001708:
040452,001709: 32,3615 41345 GAMDV50 DLOAD DMP
040453,001710: 32,3616 00021 16D
040454,001711: 32,3617 33536 1.1RTEB1
040455,001712: 32,3620 43352 SL1 DAD
040456,001713: 32,3621 03722 X(T1)
040457,001714: 32,3622 00031 STORE 24D # X(T1)+1.1DX(T1)=BETA9 B5
040458,001715: 32,3623 50025 DSU BMN
040459,001716: 32,3624 00017 14D
040460,001717: 32,3625 65634 GAMDV55
040461,001718: 32,3626 45345 DLOAD DSU
040462,001719: 32,3627 00017 14D
040463,001720: 32,3630 03722 X(T1)
040464,001721: 32,3631 77742 SR1
040465,001722: 32,3632 34021 STCALL 16D # (X(T1)MAX-X(T1))/2=DX(T1) B5
040466,001723: 32,3633 65647 GAMDV65
040467,001724: 32,3634 45345 GAMDV55 DLOAD DSU
040468,001725: 32,3635 00031 24D
040469,001726: 32,3636 00013 10D
040470,001727: 32,3637 52040 BMN GOTO
040471,001728: 32,3640 65642 GAMDV60
040472,001729: 32,3641 65647 GAMDV65
040473,001730: 32,3642 45345 GAMDV60 DLOAD DSU
040474,001731: 32,3643 00013 10D
040475,001732: 32,3644 03722 X(T1)
040476,001733: 32,3645 77742 SR1
040477,001734: 32,3646 00021 STORE 16D # (X(T1)MIN-X(T1))/2=DX(T1) B5
040478,001735: 32,3647 51545 GAMDV65 DLOAD ABS
040479,001736: 32,3650 00021 16D
040480,001737: 32,3651 50025 DSU BMN
040481,001738: 32,3652 33614 EPC9RTE
040482,001739: 32,3653 65656 GAMDVX
040483,001740: 32,3654 77650 GOTO
040484,001741: 32,3655 65513 GAMDV25
040485,001742: 32,3656 77650 GAMDVX GOTO
040486,001743: 32,3657 00037 31D
040487,001744:
|
|
Page 928
|
040489,001746: # DV CALCULATION SUBROUTINE
040490,001747:
040491,001748: # INPUT
040492,001749: # PUSHLIST
040493,001750: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040494,001751: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040495,001752: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040496,001753: # OTHER
040497,001754: # X(T1) COTANGENT OF POST IMPULSE INITIAL FLIGHT PATH ANGLE DP B5
040498,001755: # V(T1)/ INITIAL VELOCITY VECTOR (PRE IMPULSE) VECTOR B7/B5 METERS/CS
040499,001756: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040500,001757: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040501,001758:
040502,001759: # OUTPUT
040503,001760: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040504,001761: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040505,001762: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040506,001763:
040507,001764: # DEBRIS
040508,001765: # 28D THETA3*PCON**.5 DP B10/B8-N1
040509,001766: # C(PUSLOC) THETA3(PCON**.5)*X(T1)*UR1/ VECTOR B7/B5
040510,001767: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040511,001768: # X1 NORMALIZATION FACTOR FOR VALUE IN 28D
040512,001769:
040513,001770: # PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING DVCALC
040514,001771:
040515,001772: 32,3660 71220 DVCALC STQ DLOAD
040516,001773: 32,3661 00040 32D
040517,001774: 32,3662 03722 X(T1)
040518,001775: 32,3663 54316 DSQ SR
040519,001776: 32,3664 20610 7
040520,001777: 32,3665 76276 DCOMP TAD
040521,001778: 32,3666 00003 02D
040522,001779: 32,3667 41501 NORM PUSH
040523,001780: 32,3670 00047 X1
040524,001781: 32,3671 60351 TLOAD NORM
040525,001782: 32,3672 00006 05D
040526,001783: 32,3673 00050 X2
040527,001784: 32,3674 70434 RTB SR1
040528,001785: 32,3675 45716 DPMODE
040529,001786: 32,3676 56264 XSU,2 DDV
040530,001787: 32,3677 00046 X1
040531,001788: 32,3700 77657 SR*
040532,001789: 32,3701 57170 6,2
040533,001790: 32,3702 03720 STORE PCON # THETA2/(THETA1-X(T1)**2)=PCON B28/26
040534,001791: 32,3703 41366 SQRT DMP
040535,001792: 32,3704 00011 08D
040536,001793: 32,3705 77701 NORM
040537,001794: 32,3706 00047 X1
040538,001795: 32,3707 14035 STODL 28D # THETA3*PCON**.5 B10/B8 -N1
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|
Page 929
|
040540,001797: 32,3710 03722 X(T1)
040541,001798: 32,3711 74301 NORM VXSC
040542,001799: 32,3712 00050 X2
040543,001800: 32,3713 03740 UR1/ # X(T1)*UR1/ B5+B1 -N2
040544,001801: 32,3714 74274 XAD,2 VXSC
040545,001802: 32,3715 00046 X1
040546,001803: 32,3716 00035 28D
040547,001804: 32,3717 63257 VSR* PDVL # THETA3(PCON**.5)X(T1)*UR1/ B7/B5
040548,001805: 32,3720 57207 0 -9D,2 # +
040549,001806: 32,3721 03746 UH/
040550,001807: 32,3722 53761 VXSC VSR* # THETA3(PCON**.5)UH/ B7/B5
040551,001808: 32,3723 00035 28D
040552,001809: 32,3724 20575 0 -4,1 # =
040553,001810: 32,3725 45455 VAD STADR
040554,001811: 32,3726 74077 STORE V2(T1)/ # V2(T1)/ B7/B5
040555,001812: 32,3727 51451 VSU ABVAL
040556,001813: 32,3730 03672 V(T1)/
040557,001814: 32,3731 03706 STORE DV # ABVAL(V2(T1)/-V1(T)/)=DV B7/B5
040558,001815: 32,3732 77650 GOTO
040559,001816: 32,3733 00040 32D
040560,001817:
|
|
Page 930
|
040562,001819: # SUBROUTINE TO COMPUTE BOUNDS ON INDEPENDENT VARIABLE X(T1)
040563,001820:
040564,001821: # INPUT
040565,001822: # PUSHLIST
040566,001823: # PUSHLOC -4 MAJOR AXIS (MA) DP B30/B28
040567,001824: # PUSHLOC -2 MAJOR AXIS (MA) AGAIN DP B30/B28
040568,001825: # 28D BETA5=LAMBDA*BETA1 DP B9
040569,001826: # OTHER
040570,001827: # RCON DP B29/B27
040571,001828: # R(T1) DP B29/B27
040572,001829:
040573,001830: # OUTPUT
040574,001831: # MPAC
040575,001832: # X(T1)LIM LIMIT ON INDEPENDENT VARIABLE X(T1) DP B5
040576,001833:
040577,001834: # DEBRIS
040578,001835: # PUSHLIST
040579,001836: # C(PUSHLOC) MA-RCON DP (B30/28)-N1
040580,001837: # C(PSHLOC)+2 MA DP B30/B28
040581,001838: # X1 NORMALIZATION FACTOR FOR MA-RCON
040582,001839: # 20D XT1LIM SUBROUTINE RETURN ADDRESS
040583,001840:
040584,001841: # PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING XT1LIM
040585,001842:
040586,001843: 32,3734 71220 XT1LIM STQ DLOAD
040587,001844: 32,3735 00024 20D
040588,001845: 32,3736 03636 RCON
040589,001846: 32,3737 44342 SR1 BDSU
040590,001847: 32,3740 65301 NORM PDDL # MA-RCON B30-N1
040591,001848: 32,3741 00050 X2
040592,001849: 32,3742 70525 PDDL SR1
040593,001850: 32,3743 03646 R(T1)
040594,001851: 32,3744 56221 BDSU DDV
040595,001852: 32,3745 41257 SL* DMP
040596,001853: 32,3746 57601 0 -3,2 # B3
040597,001854: 32,3747 00035 28D
040598,001855: 32,3750 45257 SL* DSU # BETA10=BETA5(MA-RT)/(MA-RC)-1 B11
040599,001856: 32,3751 20173 0 -6,1
040600,001857: 32,3752 33521 1RTEB25 +1 # 1.0 B-11
040601,001858: 32,3753 40152 SL1 BOV
040602,001859: 32,3754 65760 XT1LIM2 # B10
040603,001860: 32,3755 52040 BMN GOTO
040604,001861: 32,3756 65764 XT1LIM5
040605,001862: 32,3757 65762 XT1LIM3
040606,001863: 32,3760 77745 XT1LIM2 DLOAD # BETA10=POSMAX IF OVERFLOW
040607,001864: 32,3761 33542 2RTEB1
040608,001865: 32,3762 52166 XT1LIM3 SQRT GOTO # X(T1)=SQRT(BETA10) B5
040609,001866: 32,3763 65766 XT1LIMX
040610,001867: 32,3764 77745 XT1LIM5 DLOAD
040611,001868: 32,3765 33524 ZERORTE
040612,001869: 32,3766 77650 XT1LIMX GOTO
040613,001870: 32,3767 00024 20D
040614,001871:
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|
Page 931
|
040616,001873: # CONSTANTS FOR THE P37 AND P70 PROGRAMS AND SUBROUTINES
040617,001874:
040618,001875: 36,3254 BANK 36
040619,001876: 35,2000 SETLOC RTECON1
040620,001877: 35,2000 BANK
040621,001878:
040622,001879: 35,3477 20000 00000 1RTEB1 2DEC 1. B-1
040623,001880: 35,3501 10000 00000 1RTEB2 2DEC 1. B-2
040624,001881: 35,3503 04000 00000 1RTEB3 2DEC 1. B-3
040625,001882: 35,3505 02000 00000 1RTEB4 2DEC 1. B-4
040626,001883: 35,3507 00020 00000 1RTEB10 2DEC 1. B-10
040627,001884: 35,3511 00004 00000 1RTEB12 2DEC 1. B-12
040628,001885: 35,3513 00002 00000 1RTEB13 2DEC 1. B-13
040629,001886: 35,3515 00000 04000 1RTEB17 2DEC 1. B-17
040630,001887: 35,3517 00000 00010 1RTEB25 2DEC 1. B-25
040631,001888: # * * B25 AND B28 MUST BE CONSECUTIVE * *
040632,001889: 35,3521 00000 00001 1RTEB28 2DEC 1. B-28
040633,001890: 35,3523 00000 00000 ZERORTE 2DEC 0 B-28
040634,001891: 35,3525 77777 77557 M144RTE 2DEC -144. B-28
040635,001892: 35,3527 77777 77760 M15RTE 2DEC -15 B-28
040636,001893: 35,3531 00000 00012 10RTE 2DEC 10 B-28
040637,001894: 35,3533 54631 63145 M.6RTE 2DEC -.6
040638,001895: 35,3535 21463 06315 1.1RTEB1 2DEC 1.1 B-1
040639,001896: 35,3537 77777 77771 M6RTEB28 2DEC -6 B-28
040640,001897: 35,3541 37777 37777 2RTEB1 2OCT 3777737777
040641,001898: 35,3543 77777 77766 M9RTEB28 2DEC -9 B-28
040642,001899: 35,3545 77777 77767 M8RTEB28 2DEC -8 B-28
040643,001900: 35,3547 00000 35610 30480RTE 2DEC 30480. B-29
040644,001901: 35,3551 37405 12250 VCSPS 2DEC 31.510396 B-5 # (SEE 2VEXHUST)
|
|
Page 932
|
040646,001903: 35,3553 33041 37714 VCRCS 2DEC 27.0664 B-5
040647,001904: 35,3555 00003 13241 MDOTRCS 2DEC .0016375 B-3
040648,001905: 35,3557 20000 00000 CSUBT 2DEC .5
040649,001906: 35,3561 00605 OCT605 OCT 00605
040650,001907: 35,3562 00612 OCT612 OCT 00612
040651,001908: 35,3563 40214 45266 MCOS7.5 2DEC -.99144486
040652,001909: 35,3565 73645 56536 MSIN7.5 2DEC -.13052619
040653,001910: 35,3567 70467 71205 MCOS22.5 2DEC -.92387953 B-2
040654,001911: 35,3571 16525 12525 THETA165 2DEC .4583333333
040655,001912: 35,3573 22525 12525 THETA210 2DEC .5833333333
040656,001913: 35,3575 17775 06676 EPC1RTE 2DEC .99966 B-1
040657,001914: 35,3577 00000 00062 EPC2RTE 2DEC 100. B-29
040658,001915: 35,3601 00020 14223 EPC3RTE 2DEC .001
040659,001916: 35,3603 00000 05174 EPC4RTE 2DEC .00001
040660,001917: 35,3605 00002 21727 EPC5RTE 2DEC .01 B-6
040661,001918: 35,3607 00000 01654 EPC6RTE 2DEC .000007 B-1
040662,001919: 35,3611 00000 00764 EPC7RTE 2DEC 1000. B-29
040663,001920: 35,3613 00000 00010 EPC9RTE 2DEC 1. B-25
040664,001921: 35,3615 00000 00322 EPC10RTE 2DEC .0001 B-7
040665,001922:
040666,001923: 35,3617 BANK 35
040667,001924: 35,2000 SETLOC RTECON1
040668,001925: 35,2000 BANK
040669,001926:
040670,001927: 35,3617 75725 75417 C4RTE 2DEC -6.986643 E7 B-30
040671,001928: 35,3621 00325 23740 K1RTE 2DEC 7. E6 B-29
040672,001929: 35,3623 00306 06614 K2RTE 2DEC 6495000. B-29
040673,001930: 35,3625 76027 70156 K3RTE 2DEC -.06105
040674,001931: 35,3627 74517 54131 K4RTE 2DEC -.10453
040675,001932: 35,3631 30276 05001 RTMURTE 2DEC 199650.501 B-18
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|
Page 933
|
040677,001934: 35,3633 00003 27040 E3RTE 2DEC 121920. B-29
040678,001935:
End of include-file P37,P70.agc. Parent file is MAIN.agc