Source Code
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These source-code files are part of a reconstructed copy of Artemis 071, the
first release of the Apollo 15 through 17 Command Module (CM) Apollo Guidance
Computer (AGC) software.
The reconstruction began with source code of Artemis 072 previously transcribed
from a digitized copy of that program. The code was then updated by undoing
changes between the two versions. The reconstruction was verified by matching
memory-bank checksums to those listed in drawing 2021154-. Note that page
numbers in the reconstructed code match those on the Artemis 072 printout,
although the changed code would likely have changed page numbers for a real
Artemis 071 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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044912,000002: ## Copyright: Public domain.
044913,000003: ## Filename: AUTOMATIC_MANEUVERS.agc
044914,000004: ## Purpose: A section of Artemis revision 071.
044915,000005: ## It is part of the reconstructed source code for the first
044916,000006: ## release of the flight software for the Command Module's
044917,000007: ## (CM) Apollo Guidance Computer (AGC) for Apollo 15 through
044918,000008: ## 17. The code has been recreated from a copy of Artemis 072.
044919,000009: ## It has been adapted such that the resulting bugger words
044920,000010: ## exactly match those specified for Artemis 071 in NASA
044921,000011: ## drawing 2021154-, which gives relatively high confidence
044922,000012: ## that the reconstruction is correct.
044923,000013: ## Reference: 1024
044924,000014: ## Assembler: yaYUL
044925,000015: ## Contact: Ron Burkey <info@sandroid.org>.
044926,000016: ## Website: www.ibiblio.org/apollo/index.html
044927,000017: ## Mod history: 2019-08-14 MAS Created from Artemis 072.
044928,000018:
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Page 1024
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044930,000020: 21,2000 SETLOC DAPS3
044931,000021: 21,2000 BANK
044932,000022:
044933,000023: 21,3272 COUNT* $$/DAPAM
044934,000024: 21,3272 E6,1510 EBANK= KMPAC
044935,000025: 21,3272 34753 AHFNOROT CAF BIT14
044936,000026: 21,3273 05654 TC C31BTCHK
044937,000027: 21,3274 13310 TCF FREECONT
044938,000028: 21,3275 31501 CA RCSFLAGS # SEE IF RATE FILTER HAS BEEN INITIALIZED
044939,000029: 21,3276 74753 MASK BIT14
044940,000030: 21,3277 10000 CCS A # IF SO, PROCEED WITH ATTITUDE CONTROL
044941,000031: 21,3300 12541 TCF REINIT # IF NOT, RECYCLE TO INITIALIZE FILTER
044942,000032: # AUTOMATIC CONTROL YET
044943,000033: 21,3301 34754 CAF BIT13
044944,000034: 21,3302 05654 TC C31BTCHK
044945,000035: 21,3303 13404 TCF HOLDFUNC
044946,000036: 21,3304 31340 AUTOCONT CA HOLDFLAG # IF HOLDFLAG IS +, GO TO GRABANG.
044947,000037: 21,3305 00006 EXTEND # OTHERWISE, GO TO ATTHOLD.
044948,000038: 21,3306 63334 BZMF ATTHOLD
044949,000039: 21,3307 13410 TCF GRABANG
044950,000040:
044951,000041: # MINIMUM IMPULSE CONTROL
044952,000042:
044953,000043: 21,3310 34770 FREECONT CAF ONE
044954,000044: 21,3311 55340 TS HOLDFLAG # RESET HOLDFLAG
044955,000045: # INHIBIT AUTOMATIC STEERING
044956,000046: 21,3312 00006 EXTEND
044957,000047: 21,3313 00032 READ CHAN32
044958,000048: 21,3314 54001 TS L
044959,000049: 21,3315 40000 COM
044960,000050: 21,3316 71633 MASK CHANTEMP
044961,000051: 21,3317 23633 LXCH CHANTEMP
044962,000052: 21,3320 73063 RHCMINP MASK MANROT
044963,000053: 21,3321 03152 TC STICKCHK
044964,000054: 21,3322 51656 INDEX RMANNDX
044965,000055: 21,3323 34614 CA MINTAU # MINTAU +0
044966,000056: 21,3324 55561 TS TAU # +1 +14MS MINIMUM IMPULSE
044967,000057: 21,3325 51657 INDEX PMANNDX # +2 -14MS TIME
044968,000058: 21,3326 34614 CA MINTAU # +3 +0
044969,000059: 21,3327 55562 TS TAU1
044970,000060: 21,3330 51660 INDEX YMANNDX
044971,000061: 21,3331 34614 CA MINTAU
044972,000062: 21,3332 55563 TS TAU2
044973,000063: 21,3333 13105 TCF T6PROGM
044974,000064:
044975,000065:
044976,000066: 4000 SETLOC FFTAG12
044977,000067: 4000 BANK
044978,000068:
044979,000069: 4614 COUNT* $$/DAPAM
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Page 1025
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044981,000071:
044982,000072: 4614 00000 MINTAU DEC 0 B-14
044983,000073: 4615 00027 DEC23 DEC 23 B-14 # = 14 MS
044984,000074: 4616 77750 DECNEG23 DEC -23 B-14 # = -14 MS
044985,000075: 4617 00000 DEC 0 B-14
044986,000076:
044987,000077:
044988,000078: 21,2000 SETLOC DAPS3
044989,000079: 21,2000 BANK
044990,000080:
044991,000081: 21,3334 COUNT* $$/DAPAM
044992,000082:
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Page 1026
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044994,000084: # CALCULATION OF ATTITUDE ERRORS-
044995,000085:
044996,000086: # - * - - -
044997,000087: # AK = AMGB (CDUX - THETADX) + BIAS
044998,000088:
044999,000089: # IE *AK * * 1 SIN(PSI) 0 ** CDUX - THETADX * *BIAS *
045000,000090: # * * * ** * * *
045001,000091: # *AK1* = * 0 COS(PSI)COS(PHI) SIN(PHI)** CDUY - THETADY * + *BIAS1*
045002,000092: # * * * ** * * *
045003,000093: # *AK2* * 0 -COS(PSI)SIN(PHI) COS(PHI)** CDUZ - THETADZ * *BIAS2*
045004,000094:
045005,000095: # THE BIASES ARE ADDED ONLY WHILE PERFORMING AUTOMATIC MANEUVERS (ESP KALCMANU) TO PROVIDE ADDITIONAL LEAD
045006,000096: # AND PREVENT OVERSHOOT WHEN STARTING AN AUTOMATIC MANEUVER. NORMALLY THE REQUIRED LEAD IS ONLY 1-2 DEGREES.
045007,000097: # BUT DURING HIGH RATE MANEUVERS IT CAN BE AS MUCH AS 7 DEGREES. THE BIASES ARE COMPUTED BY KALCMANU AND REMAIN
045008,000098: # FIXED UNTIL THE MANEUVER IS COMPLETED AT WHICH TIME THEY ARE RESET TO ZERO.
045009,000099:
045010,000100: 21,3334 30032 ATTHOLD CA CDUX
045011,000101: 21,3335 00006 EXTEND
045012,000102: 21,3336 21572 MSU THETADX
045013,000103: 21,3337 55567 TS ERRORX
045014,000104: 21,3340 30033 CA CDUY
045015,000105: 21,3341 00006 EXTEND
045016,000106: 21,3342 21573 MSU THETADY
045017,000107: 21,3343 55502 TS T5TEMP
045018,000108: 21,3344 00006 EXTEND
045019,000109: 21,3345 71640 MP AMGB1
045020,000110: 21,3346 27567 ADS ERRORX
045021,000111: 21,3347 31502 CA T5TEMP
045022,000112: 21,3350 00006 EXTEND
045023,000113: 21,3351 71641 MP AMGB4
045024,000114: 21,3352 55570 TS ERRORY
045025,000115: 21,3353 31502 CA T5TEMP
045026,000116: 21,3354 00006 EXTEND
045027,000117: 21,3355 71643 MP AMGB7
045028,000118: 21,3356 55571 TS ERRORZ
045029,000119: 21,3357 30034 CA CDUZ
045030,000120: 21,3360 00006 EXTEND
045031,000121: 21,3361 21574 MSU THETADZ
045032,000122: 21,3362 55502 TS T5TEMP
045033,000123: 21,3363 00006 EXTEND
045034,000124: 21,3364 71642 MP AMGB5
045035,000125: 21,3365 27570 ADS ERRORY
045036,000126: 21,3366 31502 CA T5TEMP
045037,000127: 21,3367 00006 EXTEND
045038,000128: 21,3370 71644 MP AMGB8
045039,000129: 21,3371 27571 ADS ERRORZ
045040,000130: 21,3372 41340 CS HOLDFLAG
045041,000131: 21,3373 00006 EXTEND
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Page 1027
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045043,000133: 21,3374 63452 BZMF JETS
045044,000134: 21,3375 31564 CA BIAS # AD BIASES ONLY IF PERFORMING AUTOMATIC
045045,000135: 21,3376 27567 ADS ERRORX
045046,000136: 21,3377 31565 CA BIAS1
045047,000137: 21,3400 27570 ADS ERRORY
045048,000138: 21,3401 31566 CA BIAS2
045049,000139: 21,3402 27571 ADS ERRORZ
045050,000140: 21,3403 13452 TCF JETS
045051,000141:
045052,000142:
045053,000143: 21,3404 11340 HOLDFUNC CCS HOLDFLAG
045054,000144: 21,3405 13410 TCF +3
045055,000145: 21,3406 13334 TCF ATTHOLD
045056,000146: 21,3407 13410 TCF +1
045057,000147: 21,3410 34772 GRABANG CAF ZERO # ZERO WBODYS AND BIASES
045058,000148: 21,3411 55525 TS WBODY
045059,000149: 21,3412 55526 TS WBODY +1
045060,000150: 21,3413 55527 TS WBODY1
045061,000151: 21,3414 55530 TS WBODY1 +1
045062,000152: 21,3415 55531 TS WBODY2
045063,000153: 21,3416 55532 TS WBODY2 +1
045064,000154: 21,3417 55564 TS BIAS
045065,000155: 21,3420 55565 TS BIAS1
045066,000156: 21,3421 55566 TS BIAS2
045067,000157:
045068,000158: 21,3422 31501 CA RCSFLAGS
045069,000159: 21,3423 73064 MASK OCT16000
045070,000160: 21,3424 00006 EXTEND # IS RATE DAMPING COMPLETED
045071,000161: 21,3425 13433 BZF ENDDAMP # IF SO, GO TO ENDDAMP
045072,000162: 21,3426 34772 CAF ZERO # OTHERWISE, ZERO ERRORS
045073,000163: 21,3427 55567 TS ERRORX
045074,000164: 21,3430 55570 TS ERRORY
045075,000165: 21,3431 55571 TS ERRORZ
045076,000166: 21,3432 13452 TCF JETS
045077,000167:
045078,000168: 21,3433 55340 ENDDAMP TS HOLDFLAG # SET HOLDFLAG +0
045079,000169: 21,3434 00006 EXTEND
045080,000170: 21,3435 30033 DCA CDUX # PICK UP CDU ANGLES FOR ATTITUDE HOLD
045081,000171: 21,3436 53573 DXCH THETADX # REFERENCES
045082,000172: 21,3437 30034 CA CDUZ
045083,000173: 21,3440 55574 TS THETADZ
045084,000174: 21,3441 13334 TCF ATTHOLD
045085,000175:
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Page 1028
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045087,000177: # JET SWITCHING LOGIC AND CALCULATION OF REQUIRED ROTATION COMMANDS
045088,000178:
045089,000179: # DETERMINE THE LOCATION OF THE RATE ERROR AND THE ATTITUDE ERROR RELATIVE TO THE SWITCHING LOGIC IN THE PHASE
045090,000180: # PLANE.
045091,000181: # COMPUTE THE CHANGE IN RATE CORRESPONDING TO THE ATTITUDE ERROR NECESSARY TO DRIVE THE THE S/C INTO THE
045092,000182: # APPROPRIATE DEADZONE.
045093,000183:
045094,000184:
045095,000185: # .
045096,000186: # R22 RATE . ERROR
045097,000187: # WL+H .
045098,000188: # ********************************* . ***** SWITCH LINES ENCLOSING DEADZONES
045099,000189: # R23 WL * .
045100,000190: # --------------------------------- * . ----- DESIRED RATE LINES
045101,000191: # R23 WL-H - *.
045102,000192: # ****************** - . R20, R21, R22, ETC REGIONS IN PHASE
045103,000193: # * - .* R18 R20 R21 PLANE FOF COMPUTING DESIRED RESPONSE
045104,000194: # * . *
045105,000195: # *- . *
045106,000196: # R22 R24*- R23 . *
045107,000197: # *- . *
045108,000198: # * . *
045109,000199: # + -ADB . * AF ATTITUDE
045110,000200: # .........................+--+---------------+--+........................
045111,000201: # AF * . +ADB + ERROR
045112,000202: # * . *
045113,000203: # * . -*
045114,000204: # * . -*
045115,000205: # * . -*
045116,000206: # * . *
045117,000207: # *. - *
045118,000208: # . - *****************
045119,000209: # .* -
045120,000210: # . * --------------------------------
045121,000211: # . *
045122,000212: # . ********************************
045123,000213: # .
045124,000214:
045125,000215: # FIG. 1 PHASE PLANE SWITCHING LOGIC
045126,000216:
045127,000217:
045128,000218: # CONSTANTS FOR JET SWITCHING LOGIC
045129,000219:
045130,000220: 21,3442 00114 WLH/SLOP DEC .00463 # = WL+H/SLOPE = .83333 DEG $180
045131,000221: 21,3443 5006 WL-H/SLP = DEC45 # = WL-H/SLOPE = .5 DEG $180
045132,000222: 21,3443 00022 06426 WLH 2DEC .0011111111 # = WL+H = 0.5 DEG/SEC $450
045133,000223: 21,3445 00012 35415 WLMH 2DEC .0006666666 # = WL-H = 0.3 DEG/SEC $450
045134,000224: 21,3447 00016 22021 WL 2DEC .0008888888 # = WL = 0.4 DEG/SEC $450
045135,000225:
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Page 1029
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045137,000227: 21,3451 12173 SLOPE2 DEC .32 # = 0.8 DEG/SEC/DEG $450/180
045138,000228: 21,3452 31655 JETS CA ADB
045139,000229: 21,3453 64766 AD FOUR # AF = FLAT REGION = .044 DEG
045140,000230: 21,3454 55502 TS T5TEMP # ADB+AF
045141,000231: 21,3455 34767 CAF TWO
045142,000232: 21,3456 55506 JLOOP TS SPNDX
045143,000233: 21,3457 60000 DOUBLE
045144,000234: 21,3460 55507 TS DPNDX
045145,000235: 21,3461 00006 EXTEND
045146,000236: 21,3462 50000 INDEX A
045147,000237: 21,3463 31534 DCA ADOT
045148,000238: 21,3464 53516 DXCH EDOT
045149,000239: 21,3465 31340 CA HOLDFLAG # HOLDFLAG = +0 MEANS THAT DAP IS IN
045150,000240: 21,3466 00006 EXTEND # ATTITUDE HOLD AND RATE DAMPING IS OVER.
045151,000241: 21,3467 13474 BZF INHOLD # IF THIS IS THE CASE, BYPASS ADDITION
045152,000242: # OF WBODY AND GO TO INHOLD
045153,000243: 21,3470 00006 EXTEND
045154,000244: 21,3471 51507 INDEX DPNDX
045155,000245: 21,3472 41526 DCS WBODY
045156,000246: 21,3473 21516 DAS EDOT # = ADOT-WBODY
045157,000247: 21,3474 51506 INHOLD INDEX SPNDX
045158,000248: 21,3475 31567 CA ERRORX
045159,000249: 21,3476 55517 TS AERR # AERR = BIAS + AK
045160,000250:
045161,000251: 21,3477 11515 CCS EDOT
045162,000252: 21,3500 13510 TCF POSVEL
045163,000253: 21,3501 13503 TCF SIGNCK1
045164,000254: 21,3502 13520 TCF NEGVEL
045165,000255: 21,3503 11516 SIGNCK1 CCS EDOT +1
045166,000256: 21,3504 13510 TCF POSVEL
045167,000257: 21,3505 13510 TCF POSVEL
045168,000258: 21,3506 13520 TCF NEGVEL
045169,000259: 21,3507 13520 TCF NEGVEL
045170,000260: 21,3510 00006 POSVEL EXTEND
045171,000261: 21,3511 31516 DCA EDOT
045172,000262: 21,3512 53521 DXCH EDOTVEL
045173,000263: 21,3513 31502 CA T5TEMP
045174,000264: 21,3514 55523 TS ADBVEL # +(ADB+AF)
045175,000265: 21,3515 31517 CA AERR
045176,000266: 21,3516 55522 TS AERRVEL
045177,000267: 21,3517 03527 TC J6.
045178,000268: 21,3520 00006 NEGVEL EXTEND
045179,000269: 21,3521 41516 DCS EDOT
045180,000270: 21,3522 53521 DXCH EDOTVEL
045181,000271: 21,3523 41502 CS T5TEMP
045182,000272: 21,3524 55523 TS ADBVEL # -(ADB+AF)
045183,000273: 21,3525 41517 CS AERR
045184,000274: 21,3526 55522 TS AERRVEL
045185,000275:
045186,000276: 21,3527 00006 J6. EXTEND
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Page 1030
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045188,000278: 21,3530 61655 SU ADB
045189,000279: 21,3531 63442 AD WLH/SLOP
045190,000280: 21,3532 00006 EXTEND
045191,000281: 21,3533 63562 BZMF J8
045192,000282:
045193,000283: 21,3534 41502 CS T5TEMP # (ADB+AF)
045194,000284: 21,3535 61522 AD AERRVEL
045195,000285: 21,3536 00006 EXTEND
045196,000286: 21,3537 63541 BZMF +2
045197,000287: 21,3540 13553 TCF J7
045198,000288: 21,3541 00006 EXTEND
045199,000289: 21,3542 41521 DCS EDOTVEL
045200,000290: 21,3543 00006 EXTEND
045201,000291: 21,3544 11654 DV SLOPE
045202,000292: 21,3545 00006 EXTEND
045203,000293: 21,3546 61522 SU AERRVEL
045204,000294: 21,3547 61655 AD ADB
045205,000295: 21,3550 00006 EXTEND
045206,000296: 21,3551 63641 BZMF J18
045207,000297: 21,3552 13715 TCF J23
045208,000298:
045209,000299: 21,3553 45006 J7 CS WL-H/SLP
045210,000300: 21,3554 00006 EXTEND
045211,000301: 21,3555 61502 SU T5TEMP # (ADB+AF)
045212,000302: 21,3556 61522 AD AERRVEL
045213,000303: 21,3557 00006 EXTEND
045214,000304: 21,3560 63645 BZMF J20
045215,000305: 21,3561 13656 TCF J21
045216,000306:
045217,000307: 21,3562 00006 J8 EXTEND
045218,000308: 21,3563 43444 DCS WLH
045219,000309: 21,3564 53514 DXCH WTEMP
045220,000310: 21,3565 00006 EXTEND
045221,000311: 21,3566 31521 DCA EDOTVEL
045222,000312: 21,3567 21514 DAS WTEMP
045223,000313: 21,3570 11513 CCS WTEMP
045224,000314: 21,3571 13704 TCF J22
045225,000315: 21,3572 13574 TCF SIGNCK2
045226,000316: 21,3573 13600 TCF NJ22
045227,000317: 21,3574 11514 SIGNCK2 CCS WTEMP +1
045228,000318: 21,3575 13704 TCF J22
045229,000319: 21,3576 13704 TCF J22
045230,000320: 21,3577 13600 TCF NJ22
045231,000321:
045232,000322: 21,3600 00006 NJ22 EXTEND
045233,000323: 21,3601 31521 DCA EDOTVEL
045234,000324: 21,3602 00006 EXTEND
045235,000325: 21,3603 11654 DV SLOPE
045236,000326: 21,3604 61502 AD T5TEMP # (ADB+AF)
045237,000327: 21,3605 61522 AD AERRVEL
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Page 1031
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045239,000329: 21,3606 10000 CCS A
045240,000330: 21,3607 13715 TCF J23
045241,000331: 21,3610 13715 TCF J23
045242,000332: 21,3611 13613 TCF +2
045243,000333: 21,3612 13715 TCF J23
045244,000334:
045245,000335: 21,3613 00006 EXTEND
045246,000336: 21,3614 43446 DCS WLMH # WL - H
045247,000337: 21,3615 53514 DXCH WTEMP
045248,000338: 21,3616 00006 EXTEND
045249,000339: 21,3617 31521 DCA EDOTVEL
045250,000340: 21,3620 21514 DAS WTEMP
045251,000341: 21,3621 11513 CCS WTEMP
045252,000342: 21,3622 13715 TCF J23
045253,000343: 21,3623 13625 TCF SIGNCK3
045254,000344: 21,3624 13631 TCF NJ23
045255,000345: 21,3625 11514 SIGNCK3 CCS WTEMP +1
045256,000346: 21,3626 13715 TCF J23
045257,000347: 21,3627 13715 TCF J23
045258,000348: 21,3630 13631 TCF NJ23
045259,000349:
045260,000350: 21,3631 31522 NJ23 CA AERRVEL
045261,000351: 21,3632 61502 AD T5TEMP # (ADB+AF)
045262,000352: 21,3633 65006 AD WL-H/SLP
045263,000353: 21,3634 10000 CCS A
045264,000354: 21,3635 13727 TCF J24
045265,000355: 21,3636 13727 TCF J24
045266,000356: 21,3637 13704 TCF J22
045267,000357: 21,3640 13704 TCF J22
045268,000358:
045269,000359: 21,3641 00006 J18 EXTEND
045270,000360: 21,3642 41516 DCS EDOT
045271,000361: 21,3643 53511 DXCH KMPAC
045272,000362: 21,3644 13740 TCF JTIME
045273,000363:
045274,000364: 21,3645 41517 J20 CS AERR
045275,000365: 21,3646 61523 AD ADBVEL
045276,000366: 21,3647 00006 EXTEND
045277,000367: 21,3650 73451 MP SLOPE2 # (HYSTERESIS SLOPE)
045278,000368: 21,3651 53511 DXCH KMPAC
045279,000369: 21,3652 00006 EXTEND
045280,000370: 21,3653 41516 DCS EDOT
045281,000371: 21,3654 21511 DAS KMPAC
045282,000372: 21,3655 13740 TCF JTIME
045283,000373:
045284,000374: 21,3656 11515 J21 CCS EDOT
045285,000375: 21,3657 13675 TCF JP
045286,000376: 21,3660 13662 TCF SIGNCK4
045287,000377: 21,3661 13666 TCF JN
045288,000378: 21,3662 11516 SIGNCK4 CCS EDOT +1
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Page 1032
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045290,000380: 21,3663 13675 TCF JP
045291,000381: 21,3664 13675 TCF JP
045292,000382: 21,3665 13666 TCF JN
045293,000383: 21,3666 00006 JN EXTEND
045294,000384: 21,3667 41516 DCS EDOT
045295,000385: 21,3670 53511 DXCH KMPAC
045296,000386: 21,3671 00006 EXTEND
045297,000387: 21,3672 33450 DCA WL
045298,000388: 21,3673 21511 DAS KMPAC
045299,000389: 21,3674 13740 TCF JTIME
045300,000390:
045301,000391: 21,3675 00006 JP EXTEND
045302,000392: 21,3676 41516 DCS EDOT
045303,000393: 21,3677 53511 DXCH KMPAC
045304,000394: 21,3700 00006 EXTEND
045305,000395: 21,3701 43450 DCS WL
045306,000396: 21,3702 21511 DAS KMPAC
045307,000397: 21,3703 13740 TCF JTIME
045308,000398:
045309,000399: 21,3704 11515 J22 CCS EDOT
045310,000400: 21,3705 13666 TCF JN
045311,000401: 21,3706 13710 TCF SIGNCK5
045312,000402: 21,3707 13675 TCF JP
045313,000403: 21,3710 11516 SIGNCK5 CCS EDOT +1
045314,000404: 21,3711 13666 TCF JN
045315,000405: 21,3712 13666 TCF JN
045316,000406: 21,3713 13675 TCF JP
045317,000407: 21,3714 13675 TCF JP
045318,000408:
045319,000409: 21,3715 51506 J23 INDEX SPNDX
045320,000410: 21,3716 44754 CS BIT13 # RESET RATE DAMPING FLAG
045321,000411: 21,3717 71501 MASK RCSFLAGS # BIT13 FOR ROLL (SPNDX = 0)
045322,000412: 21,3720 55501 TS RCSFLAGS # BIT12 FOR PITCH (SPNDX = 1)
045323,000413: # BIT11 FOR YAW (SPNDX = 2)
045324,000414:
045325,000415: 21,3721 51506 INDEX SPNDX
045326,000416: 21,3722 33060 CAF OCT01400 # IS THERE TO BE A FORCED FIRING ON THIS
045327,000417: 21,3723 71501 MASK RCSFLAGS # AXIS
045328,000418: 21,3724 00006 EXTEND
045329,000419: 21,3725 13761 BZF DOJET +2 # NO, GO TO DOJET +2 AND DO NOTHING
045330,000420:
045331,000421: 21,3726 13641 TCF J18 # YES, GO TO J18 AND FORCE A FIRING
045332,000422:
045333,000423: 21,3727 41517 J24 CS AERR
045334,000424: 21,3730 00006 EXTEND
045335,000425: 21,3731 61523 SU ADBVEL
045336,000426: 21,3732 00006 EXTEND
045337,000427: 21,3733 73451 MP SLOPE2 # (HYSTERESIS SLOPE)
045338,000428: 21,3734 53511 DXCH KMPAC
045339,000429: 21,3735 00006 EXTEND
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|
Page 1033
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045341,000431: 21,3736 41516 DCS EDOT
045342,000432: 21,3737 21511 DAS KMPAC
045343,000433:
|
|
Page 1034
|
045345,000435: # COMPUTE THE JET ON TIME NECESSARY TO ACCOMPLISH THE DESIRED CHANGE IN RATE, IE
045346,000436:
045347,000437: # T = J/M(DELTA W)
045348,000438: # J
045349,000439:
045350,000440: # DELTA W = DESIRED CHANGE IN S/C ANGULAR RATE AS DETERMINED BY THE
045351,000441: # SWITCHING LOGIC, AT THIS POINT STORED IN KMPAC.
045352,000442:
045353,000443: # J/M = S/C INERTIA TO TORQUE 9ATIO SCALED BY
045354,000444: # (57.3/450)(B24/1600)(1/.8)
045355,000445: # FOR 1 JET OPERATION (M = 700 FT-LB).
045356,000446: # IE J/M = J(SLUG-FTFT) X 0.00000085601606
045357,000447:
045358,000448: # THE CORRESPONDING COMPUTER VARIABLES ESTABLISHED BY
045359,000449: # KEYBOARD ENTRY ARE
045360,000450: # J/M (ROLL)
045361,000451: # J/M1 (PITCH)
045362,000452: # J/M2 (YAW)
045363,000453:
045364,000454: # T = JET ON-TIME SCALED 16384/1600 SEC
045365,000455: # J
045366,000456:
045367,000457: # THE COMPUTER VARIABLES ARE
045368,000458: # TAU (ROLL)
045369,000459: # TAU1 (PITCH)
045370,000460: # TAU2 (YAW)
045371,000461:
045372,000462:
045373,000463: 21,3740 51506 JTIME INDEX SPNDX # PICK UP S/C INERTIA/TORQUE RATIO
045374,000464: 21,3741 31623 CA J/M # SCALED (57.3/450)(B24/1600)
045375,000465: 21,3742 02060 TC SMALLMP # FOR 1-JET OPERATION
045376,000466: 21,3743 34756 CA BIT11
045377,000467: 21,3744 02060 TC SMALLMP
045378,000468: 21,3745 11510 CCS KMPAC
045379,000469: 21,3746 13752 TCF +4
045380,000470: 21,3747 13756 TCF TAUNORM
045381,000471: 21,3750 13754 TCF +4
045382,000472: 21,3751 13756 TCF TAUNORM
045383,000473: 21,3752 34750 CA POSMAX
045384,000474: 21,3753 13757 TCF DOJET
045385,000475: 21,3754 34752 CA NEGMAX
045386,000476: 21,3755 13757 TCF DOJET
045387,000477:
045388,000478: 21,3756 31511 TAUNORM CA KMPAC +1
045389,000479: 21,3757 51506 DOJET INDEX SPNDX
045390,000480: 21,3760 55561 TS TAU
045391,000481: 21,3761 11506 +2 CCS SPNDX
045392,000482: 21,3762 13456 TCF JLOOP
045393,000483: 21,3763 00006 T6PROG EXTEND # WHEN THE ROTATION COMMANDS (TAUS)
045394,000484: 21,3764 33770 DCA JETADDR # HAVE BEEN DETERMINED
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Page 1035
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045396,000486: 21,3765 52113 DXCH T5LOC # RESET T5LOC FOR PHASE3
045397,000487: 21,3766 15323 TCF RESUME
045398,000488:
045399,000489: 21,3767 E6,1510 EBANK= KMPAC
045400,000490: 21,3767 02541 36066 JETADDR 2CADR JETSLECT
End of include-file AUTOMATIC_MANEUVERS.agc. Parent file is MAIN.agc