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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044921,000002: ## Copyright: Public domain.
044922,000003: ## Filename: AUTOMATIC_MANEUVERS.agc
044923,000004: ## Purpose: A section of Artemis revision 071.
044924,000005: ## It is part of the reconstructed source code for the first
044925,000006: ## release of the flight software for the Command Module's
044926,000007: ## (CM) Apollo Guidance Computer (AGC) for Apollo 15 through
044927,000008: ## 17. The code has been recreated from a copy of Artemis 072.
044928,000009: ## It has been adapted such that the resulting bugger words
044929,000010: ## exactly match those specified for Artemis 071 in NASA
044930,000011: ## drawing 2021154-, which gives relatively high confidence
044931,000012: ## that the reconstruction is correct.
044932,000013: ## Reference: 1024
044933,000014: ## Assembler: yaYUL
044934,000015: ## Contact: Ron Burkey <info@sandroid.org>.
044935,000016: ## Website: www.ibiblio.org/apollo/index.html
044936,000017: ## Mod history: 2019-08-14 MAS Created from Artemis 072.
044937,000018:
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Page 1024
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044939,000020: 21,2000 SETLOC DAPS3
044940,000021: 21,2000 BANK
044941,000022:
044942,000023: 21,3272 COUNT* $$/DAPAM
044943,000024: 21,3272 E6,1510 EBANK= KMPAC
044944,000025: 21,3272 34753 AHFNOROT CAF BIT14
044945,000026: 21,3273 05654 TC C31BTCHK
044946,000027: 21,3274 13310 TCF FREECONT
044947,000028: 21,3275 31501 CA RCSFLAGS # SEE IF RATE FILTER HAS BEEN INITIALIZED
044948,000029: 21,3276 74753 MASK BIT14
044949,000030: 21,3277 10000 CCS A # IF SO, PROCEED WITH ATTITUDE CONTROL
044950,000031: 21,3300 12541 TCF REINIT # IF NOT, RECYCLE TO INITIALIZE FILTER
044951,000032: # AUTOMATIC CONTROL YET
044952,000033: 21,3301 34754 CAF BIT13
044953,000034: 21,3302 05654 TC C31BTCHK
044954,000035: 21,3303 13404 TCF HOLDFUNC
044955,000036: 21,3304 31340 AUTOCONT CA HOLDFLAG # IF HOLDFLAG IS +, GO TO GRABANG.
044956,000037: 21,3305 00006 EXTEND # OTHERWISE, GO TO ATTHOLD.
044957,000038: 21,3306 63334 BZMF ATTHOLD
044958,000039: 21,3307 13410 TCF GRABANG
044959,000040:
044960,000041: # MINIMUM IMPULSE CONTROL
044961,000042:
044962,000043: 21,3310 34770 FREECONT CAF ONE
044963,000044: 21,3311 55340 TS HOLDFLAG # RESET HOLDFLAG
044964,000045: # INHIBIT AUTOMATIC STEERING
044965,000046: 21,3312 00006 EXTEND
044966,000047: 21,3313 00032 READ CHAN32
044967,000048: 21,3314 54001 TS L
044968,000049: 21,3315 40000 COM
044969,000050: 21,3316 71633 MASK CHANTEMP
044970,000051: 21,3317 23633 LXCH CHANTEMP
044971,000052: 21,3320 73063 RHCMINP MASK MANROT
044972,000053: 21,3321 03152 TC STICKCHK
044973,000054: 21,3322 51656 INDEX RMANNDX
044974,000055: 21,3323 34614 CA MINTAU # MINTAU +0
044975,000056: 21,3324 55561 TS TAU # +1 +14MS MINIMUM IMPULSE
044976,000057: 21,3325 51657 INDEX PMANNDX # +2 -14MS TIME
044977,000058: 21,3326 34614 CA MINTAU # +3 +0
044978,000059: 21,3327 55562 TS TAU1
044979,000060: 21,3330 51660 INDEX YMANNDX
044980,000061: 21,3331 34614 CA MINTAU
044981,000062: 21,3332 55563 TS TAU2
044982,000063: 21,3333 13105 TCF T6PROGM
044983,000064:
044984,000065:
044985,000066: 4000 SETLOC FFTAG12
044986,000067: 4000 BANK
044987,000068:
044988,000069: 4614 COUNT* $$/DAPAM
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Page 1025
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044990,000071:
044991,000072: 4614 00000 MINTAU DEC 0 B-14
044992,000073: 4615 00027 DEC23 DEC 23 B-14 # = 14 MS
044993,000074: 4616 77750 DECNEG23 DEC -23 B-14 # = -14 MS
044994,000075: 4617 00000 DEC 0 B-14
044995,000076:
044996,000077:
044997,000078: 21,2000 SETLOC DAPS3
044998,000079: 21,2000 BANK
044999,000080:
045000,000081: 21,3334 COUNT* $$/DAPAM
045001,000082:
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Page 1026
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045003,000084: # CALCULATION OF ATTITUDE ERRORS-
045004,000085:
045005,000086: # - * - - -
045006,000087: # AK = AMGB (CDUX - THETADX) + BIAS
045007,000088:
045008,000089: # IE *AK * * 1 SIN(PSI) 0 ** CDUX - THETADX * *BIAS *
045009,000090: # * * * ** * * *
045010,000091: # *AK1* = * 0 COS(PSI)COS(PHI) SIN(PHI)** CDUY - THETADY * + *BIAS1*
045011,000092: # * * * ** * * *
045012,000093: # *AK2* * 0 -COS(PSI)SIN(PHI) COS(PHI)** CDUZ - THETADZ * *BIAS2*
045013,000094:
045014,000095: # THE BIASES ARE ADDED ONLY WHILE PERFORMING AUTOMATIC MANEUVERS (ESP KALCMANU) TO PROVIDE ADDITIONAL LEAD
045015,000096: # AND PREVENT OVERSHOOT WHEN STARTING AN AUTOMATIC MANEUVER. NORMALLY THE REQUIRED LEAD IS ONLY 1-2 DEGREES.
045016,000097: # BUT DURING HIGH RATE MANEUVERS IT CAN BE AS MUCH AS 7 DEGREES. THE BIASES ARE COMPUTED BY KALCMANU AND REMAIN
045017,000098: # FIXED UNTIL THE MANEUVER IS COMPLETED AT WHICH TIME THEY ARE RESET TO ZERO.
045018,000099:
045019,000100: 21,3334 30032 ATTHOLD CA CDUX
045020,000101: 21,3335 00006 EXTEND
045021,000102: 21,3336 21572 MSU THETADX
045022,000103: 21,3337 55567 TS ERRORX
045023,000104: 21,3340 30033 CA CDUY
045024,000105: 21,3341 00006 EXTEND
045025,000106: 21,3342 21573 MSU THETADY
045026,000107: 21,3343 55502 TS T5TEMP
045027,000108: 21,3344 00006 EXTEND
045028,000109: 21,3345 71640 MP AMGB1
045029,000110: 21,3346 27567 ADS ERRORX
045030,000111: 21,3347 31502 CA T5TEMP
045031,000112: 21,3350 00006 EXTEND
045032,000113: 21,3351 71641 MP AMGB4
045033,000114: 21,3352 55570 TS ERRORY
045034,000115: 21,3353 31502 CA T5TEMP
045035,000116: 21,3354 00006 EXTEND
045036,000117: 21,3355 71643 MP AMGB7
045037,000118: 21,3356 55571 TS ERRORZ
045038,000119: 21,3357 30034 CA CDUZ
045039,000120: 21,3360 00006 EXTEND
045040,000121: 21,3361 21574 MSU THETADZ
045041,000122: 21,3362 55502 TS T5TEMP
045042,000123: 21,3363 00006 EXTEND
045043,000124: 21,3364 71642 MP AMGB5
045044,000125: 21,3365 27570 ADS ERRORY
045045,000126: 21,3366 31502 CA T5TEMP
045046,000127: 21,3367 00006 EXTEND
045047,000128: 21,3370 71644 MP AMGB8
045048,000129: 21,3371 27571 ADS ERRORZ
045049,000130: 21,3372 41340 CS HOLDFLAG
045050,000131: 21,3373 00006 EXTEND
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Page 1027
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045052,000133: 21,3374 63452 BZMF JETS
045053,000134: 21,3375 31564 CA BIAS # AD BIASES ONLY IF PERFORMING AUTOMATIC
045054,000135: 21,3376 27567 ADS ERRORX
045055,000136: 21,3377 31565 CA BIAS1
045056,000137: 21,3400 27570 ADS ERRORY
045057,000138: 21,3401 31566 CA BIAS2
045058,000139: 21,3402 27571 ADS ERRORZ
045059,000140: 21,3403 13452 TCF JETS
045060,000141:
045061,000142:
045062,000143: 21,3404 11340 HOLDFUNC CCS HOLDFLAG
045063,000144: 21,3405 13410 TCF +3
045064,000145: 21,3406 13334 TCF ATTHOLD
045065,000146: 21,3407 13410 TCF +1
045066,000147: 21,3410 34772 GRABANG CAF ZERO # ZERO WBODYS AND BIASES
045067,000148: 21,3411 55525 TS WBODY
045068,000149: 21,3412 55526 TS WBODY +1
045069,000150: 21,3413 55527 TS WBODY1
045070,000151: 21,3414 55530 TS WBODY1 +1
045071,000152: 21,3415 55531 TS WBODY2
045072,000153: 21,3416 55532 TS WBODY2 +1
045073,000154: 21,3417 55564 TS BIAS
045074,000155: 21,3420 55565 TS BIAS1
045075,000156: 21,3421 55566 TS BIAS2
045076,000157:
045077,000158: 21,3422 31501 CA RCSFLAGS
045078,000159: 21,3423 73064 MASK OCT16000
045079,000160: 21,3424 00006 EXTEND # IS RATE DAMPING COMPLETED
045080,000161: 21,3425 13433 BZF ENDDAMP # IF SO, GO TO ENDDAMP
045081,000162: 21,3426 34772 CAF ZERO # OTHERWISE, ZERO ERRORS
045082,000163: 21,3427 55567 TS ERRORX
045083,000164: 21,3430 55570 TS ERRORY
045084,000165: 21,3431 55571 TS ERRORZ
045085,000166: 21,3432 13452 TCF JETS
045086,000167:
045087,000168: 21,3433 55340 ENDDAMP TS HOLDFLAG # SET HOLDFLAG +0
045088,000169: 21,3434 00006 EXTEND
045089,000170: 21,3435 30033 DCA CDUX # PICK UP CDU ANGLES FOR ATTITUDE HOLD
045090,000171: 21,3436 53573 DXCH THETADX # REFERENCES
045091,000172: 21,3437 30034 CA CDUZ
045092,000173: 21,3440 55574 TS THETADZ
045093,000174: 21,3441 13334 TCF ATTHOLD
045094,000175:
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Page 1028
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045096,000177: # JET SWITCHING LOGIC AND CALCULATION OF REQUIRED ROTATION COMMANDS
045097,000178:
045098,000179: # DETERMINE THE LOCATION OF THE RATE ERROR AND THE ATTITUDE ERROR RELATIVE TO THE SWITCHING LOGIC IN THE PHASE
045099,000180: # PLANE.
045100,000181: # COMPUTE THE CHANGE IN RATE CORRESPONDING TO THE ATTITUDE ERROR NECESSARY TO DRIVE THE THE S/C INTO THE
045101,000182: # APPROPRIATE DEADZONE.
045102,000183:
045103,000184:
045104,000185: # .
045105,000186: # R22 RATE . ERROR
045106,000187: # WL+H .
045107,000188: # ********************************* . ***** SWITCH LINES ENCLOSING DEADZONES
045108,000189: # R23 WL * .
045109,000190: # --------------------------------- * . ----- DESIRED RATE LINES
045110,000191: # R23 WL-H - *.
045111,000192: # ****************** - . R20, R21, R22, ETC REGIONS IN PHASE
045112,000193: # * - .* R18 R20 R21 PLANE FOF COMPUTING DESIRED RESPONSE
045113,000194: # * . *
045114,000195: # *- . *
045115,000196: # R22 R24*- R23 . *
045116,000197: # *- . *
045117,000198: # * . *
045118,000199: # + -ADB . * AF ATTITUDE
045119,000200: # .........................+--+---------------+--+........................
045120,000201: # AF * . +ADB + ERROR
045121,000202: # * . *
045122,000203: # * . -*
045123,000204: # * . -*
045124,000205: # * . -*
045125,000206: # * . *
045126,000207: # *. - *
045127,000208: # . - *****************
045128,000209: # .* -
045129,000210: # . * --------------------------------
045130,000211: # . *
045131,000212: # . ********************************
045132,000213: # .
045133,000214:
045134,000215: # FIG. 1 PHASE PLANE SWITCHING LOGIC
045135,000216:
045136,000217:
045137,000218: # CONSTANTS FOR JET SWITCHING LOGIC
045138,000219:
045139,000220: 21,3442 00114 WLH/SLOP DEC .00463 # = WL+H/SLOPE = .83333 DEG $180
045140,000221: 21,3443 5006 WL-H/SLP = DEC45 # = WL-H/SLOPE = .5 DEG $180
045141,000222: 21,3443 00022 06426 WLH 2DEC .0011111111 # = WL+H = 0.5 DEG/SEC $450
045142,000223: 21,3445 00012 35415 WLMH 2DEC .0006666666 # = WL-H = 0.3 DEG/SEC $450
045143,000224: 21,3447 00016 22021 WL 2DEC .0008888888 # = WL = 0.4 DEG/SEC $450
045144,000225:
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Page 1029
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045146,000227: 21,3451 12173 SLOPE2 DEC .32 # = 0.8 DEG/SEC/DEG $450/180
045147,000228: 21,3452 31655 JETS CA ADB
045148,000229: 21,3453 64766 AD FOUR # AF = FLAT REGION = .044 DEG
045149,000230: 21,3454 55502 TS T5TEMP # ADB+AF
045150,000231: 21,3455 34767 CAF TWO
045151,000232: 21,3456 55506 JLOOP TS SPNDX
045152,000233: 21,3457 60000 DOUBLE
045153,000234: 21,3460 55507 TS DPNDX
045154,000235: 21,3461 00006 EXTEND
045155,000236: 21,3462 50000 INDEX A
045156,000237: 21,3463 31534 DCA ADOT
045157,000238: 21,3464 53516 DXCH EDOT
045158,000239: 21,3465 31340 CA HOLDFLAG # HOLDFLAG = +0 MEANS THAT DAP IS IN
045159,000240: 21,3466 00006 EXTEND # ATTITUDE HOLD AND RATE DAMPING IS OVER.
045160,000241: 21,3467 13474 BZF INHOLD # IF THIS IS THE CASE, BYPASS ADDITION
045161,000242: # OF WBODY AND GO TO INHOLD
045162,000243: 21,3470 00006 EXTEND
045163,000244: 21,3471 51507 INDEX DPNDX
045164,000245: 21,3472 41526 DCS WBODY
045165,000246: 21,3473 21516 DAS EDOT # = ADOT-WBODY
045166,000247: 21,3474 51506 INHOLD INDEX SPNDX
045167,000248: 21,3475 31567 CA ERRORX
045168,000249: 21,3476 55517 TS AERR # AERR = BIAS + AK
045169,000250:
045170,000251: 21,3477 11515 CCS EDOT
045171,000252: 21,3500 13510 TCF POSVEL
045172,000253: 21,3501 13503 TCF SIGNCK1
045173,000254: 21,3502 13520 TCF NEGVEL
045174,000255: 21,3503 11516 SIGNCK1 CCS EDOT +1
045175,000256: 21,3504 13510 TCF POSVEL
045176,000257: 21,3505 13510 TCF POSVEL
045177,000258: 21,3506 13520 TCF NEGVEL
045178,000259: 21,3507 13520 TCF NEGVEL
045179,000260: 21,3510 00006 POSVEL EXTEND
045180,000261: 21,3511 31516 DCA EDOT
045181,000262: 21,3512 53521 DXCH EDOTVEL
045182,000263: 21,3513 31502 CA T5TEMP
045183,000264: 21,3514 55523 TS ADBVEL # +(ADB+AF)
045184,000265: 21,3515 31517 CA AERR
045185,000266: 21,3516 55522 TS AERRVEL
045186,000267: 21,3517 03527 TC J6.
045187,000268: 21,3520 00006 NEGVEL EXTEND
045188,000269: 21,3521 41516 DCS EDOT
045189,000270: 21,3522 53521 DXCH EDOTVEL
045190,000271: 21,3523 41502 CS T5TEMP
045191,000272: 21,3524 55523 TS ADBVEL # -(ADB+AF)
045192,000273: 21,3525 41517 CS AERR
045193,000274: 21,3526 55522 TS AERRVEL
045194,000275:
045195,000276: 21,3527 00006 J6. EXTEND
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Page 1030
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045197,000278: 21,3530 61655 SU ADB
045198,000279: 21,3531 63442 AD WLH/SLOP
045199,000280: 21,3532 00006 EXTEND
045200,000281: 21,3533 63562 BZMF J8
045201,000282:
045202,000283: 21,3534 41502 CS T5TEMP # (ADB+AF)
045203,000284: 21,3535 61522 AD AERRVEL
045204,000285: 21,3536 00006 EXTEND
045205,000286: 21,3537 63541 BZMF +2
045206,000287: 21,3540 13553 TCF J7
045207,000288: 21,3541 00006 EXTEND
045208,000289: 21,3542 41521 DCS EDOTVEL
045209,000290: 21,3543 00006 EXTEND
045210,000291: 21,3544 11654 DV SLOPE
045211,000292: 21,3545 00006 EXTEND
045212,000293: 21,3546 61522 SU AERRVEL
045213,000294: 21,3547 61655 AD ADB
045214,000295: 21,3550 00006 EXTEND
045215,000296: 21,3551 63641 BZMF J18
045216,000297: 21,3552 13715 TCF J23
045217,000298:
045218,000299: 21,3553 45006 J7 CS WL-H/SLP
045219,000300: 21,3554 00006 EXTEND
045220,000301: 21,3555 61502 SU T5TEMP # (ADB+AF)
045221,000302: 21,3556 61522 AD AERRVEL
045222,000303: 21,3557 00006 EXTEND
045223,000304: 21,3560 63645 BZMF J20
045224,000305: 21,3561 13656 TCF J21
045225,000306:
045226,000307: 21,3562 00006 J8 EXTEND
045227,000308: 21,3563 43444 DCS WLH
045228,000309: 21,3564 53514 DXCH WTEMP
045229,000310: 21,3565 00006 EXTEND
045230,000311: 21,3566 31521 DCA EDOTVEL
045231,000312: 21,3567 21514 DAS WTEMP
045232,000313: 21,3570 11513 CCS WTEMP
045233,000314: 21,3571 13704 TCF J22
045234,000315: 21,3572 13574 TCF SIGNCK2
045235,000316: 21,3573 13600 TCF NJ22
045236,000317: 21,3574 11514 SIGNCK2 CCS WTEMP +1
045237,000318: 21,3575 13704 TCF J22
045238,000319: 21,3576 13704 TCF J22
045239,000320: 21,3577 13600 TCF NJ22
045240,000321:
045241,000322: 21,3600 00006 NJ22 EXTEND
045242,000323: 21,3601 31521 DCA EDOTVEL
045243,000324: 21,3602 00006 EXTEND
045244,000325: 21,3603 11654 DV SLOPE
045245,000326: 21,3604 61502 AD T5TEMP # (ADB+AF)
045246,000327: 21,3605 61522 AD AERRVEL
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Page 1031
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045248,000329: 21,3606 10000 CCS A
045249,000330: 21,3607 13715 TCF J23
045250,000331: 21,3610 13715 TCF J23
045251,000332: 21,3611 13613 TCF +2
045252,000333: 21,3612 13715 TCF J23
045253,000334:
045254,000335: 21,3613 00006 EXTEND
045255,000336: 21,3614 43446 DCS WLMH # WL - H
045256,000337: 21,3615 53514 DXCH WTEMP
045257,000338: 21,3616 00006 EXTEND
045258,000339: 21,3617 31521 DCA EDOTVEL
045259,000340: 21,3620 21514 DAS WTEMP
045260,000341: 21,3621 11513 CCS WTEMP
045261,000342: 21,3622 13715 TCF J23
045262,000343: 21,3623 13625 TCF SIGNCK3
045263,000344: 21,3624 13631 TCF NJ23
045264,000345: 21,3625 11514 SIGNCK3 CCS WTEMP +1
045265,000346: 21,3626 13715 TCF J23
045266,000347: 21,3627 13715 TCF J23
045267,000348: 21,3630 13631 TCF NJ23
045268,000349:
045269,000350: 21,3631 31522 NJ23 CA AERRVEL
045270,000351: 21,3632 61502 AD T5TEMP # (ADB+AF)
045271,000352: 21,3633 65006 AD WL-H/SLP
045272,000353: 21,3634 10000 CCS A
045273,000354: 21,3635 13727 TCF J24
045274,000355: 21,3636 13727 TCF J24
045275,000356: 21,3637 13704 TCF J22
045276,000357: 21,3640 13704 TCF J22
045277,000358:
045278,000359: 21,3641 00006 J18 EXTEND
045279,000360: 21,3642 41516 DCS EDOT
045280,000361: 21,3643 53511 DXCH KMPAC
045281,000362: 21,3644 13740 TCF JTIME
045282,000363:
045283,000364: 21,3645 41517 J20 CS AERR
045284,000365: 21,3646 61523 AD ADBVEL
045285,000366: 21,3647 00006 EXTEND
045286,000367: 21,3650 73451 MP SLOPE2 # (HYSTERESIS SLOPE)
045287,000368: 21,3651 53511 DXCH KMPAC
045288,000369: 21,3652 00006 EXTEND
045289,000370: 21,3653 41516 DCS EDOT
045290,000371: 21,3654 21511 DAS KMPAC
045291,000372: 21,3655 13740 TCF JTIME
045292,000373:
045293,000374: 21,3656 11515 J21 CCS EDOT
045294,000375: 21,3657 13675 TCF JP
045295,000376: 21,3660 13662 TCF SIGNCK4
045296,000377: 21,3661 13666 TCF JN
045297,000378: 21,3662 11516 SIGNCK4 CCS EDOT +1
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Page 1032
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045299,000380: 21,3663 13675 TCF JP
045300,000381: 21,3664 13675 TCF JP
045301,000382: 21,3665 13666 TCF JN
045302,000383: 21,3666 00006 JN EXTEND
045303,000384: 21,3667 41516 DCS EDOT
045304,000385: 21,3670 53511 DXCH KMPAC
045305,000386: 21,3671 00006 EXTEND
045306,000387: 21,3672 33450 DCA WL
045307,000388: 21,3673 21511 DAS KMPAC
045308,000389: 21,3674 13740 TCF JTIME
045309,000390:
045310,000391: 21,3675 00006 JP EXTEND
045311,000392: 21,3676 41516 DCS EDOT
045312,000393: 21,3677 53511 DXCH KMPAC
045313,000394: 21,3700 00006 EXTEND
045314,000395: 21,3701 43450 DCS WL
045315,000396: 21,3702 21511 DAS KMPAC
045316,000397: 21,3703 13740 TCF JTIME
045317,000398:
045318,000399: 21,3704 11515 J22 CCS EDOT
045319,000400: 21,3705 13666 TCF JN
045320,000401: 21,3706 13710 TCF SIGNCK5
045321,000402: 21,3707 13675 TCF JP
045322,000403: 21,3710 11516 SIGNCK5 CCS EDOT +1
045323,000404: 21,3711 13666 TCF JN
045324,000405: 21,3712 13666 TCF JN
045325,000406: 21,3713 13675 TCF JP
045326,000407: 21,3714 13675 TCF JP
045327,000408:
045328,000409: 21,3715 51506 J23 INDEX SPNDX
045329,000410: 21,3716 44754 CS BIT13 # RESET RATE DAMPING FLAG
045330,000411: 21,3717 71501 MASK RCSFLAGS # BIT13 FOR ROLL (SPNDX = 0)
045331,000412: 21,3720 55501 TS RCSFLAGS # BIT12 FOR PITCH (SPNDX = 1)
045332,000413: # BIT11 FOR YAW (SPNDX = 2)
045333,000414:
045334,000415: 21,3721 51506 INDEX SPNDX
045335,000416: 21,3722 33060 CAF OCT01400 # IS THERE TO BE A FORCED FIRING ON THIS
045336,000417: 21,3723 71501 MASK RCSFLAGS # AXIS
045337,000418: 21,3724 00006 EXTEND
045338,000419: 21,3725 13761 BZF DOJET +2 # NO, GO TO DOJET +2 AND DO NOTHING
045339,000420:
045340,000421: 21,3726 13641 TCF J18 # YES, GO TO J18 AND FORCE A FIRING
045341,000422:
045342,000423: 21,3727 41517 J24 CS AERR
045343,000424: 21,3730 00006 EXTEND
045344,000425: 21,3731 61523 SU ADBVEL
045345,000426: 21,3732 00006 EXTEND
045346,000427: 21,3733 73451 MP SLOPE2 # (HYSTERESIS SLOPE)
045347,000428: 21,3734 53511 DXCH KMPAC
045348,000429: 21,3735 00006 EXTEND
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|
Page 1033
|
045350,000431: 21,3736 41516 DCS EDOT
045351,000432: 21,3737 21511 DAS KMPAC
045352,000433:
|
|
Page 1034
|
045354,000435: # COMPUTE THE JET ON TIME NECESSARY TO ACCOMPLISH THE DESIRED CHANGE IN RATE, IE
045355,000436:
045356,000437: # T = J/M(DELTA W)
045357,000438: # J
045358,000439:
045359,000440: # DELTA W = DESIRED CHANGE IN S/C ANGULAR RATE AS DETERMINED BY THE
045360,000441: # SWITCHING LOGIC, AT THIS POINT STORED IN KMPAC.
045361,000442:
045362,000443: # J/M = S/C INERTIA TO TORQUE 9ATIO SCALED BY
045363,000444: # (57.3/450)(B24/1600)(1/.8)
045364,000445: # FOR 1 JET OPERATION (M = 700 FT-LB).
045365,000446: # IE J/M = J(SLUG-FTFT) X 0.00000085601606
045366,000447:
045367,000448: # THE CORRESPONDING COMPUTER VARIABLES ESTABLISHED BY
045368,000449: # KEYBOARD ENTRY ARE
045369,000450: # J/M (ROLL)
045370,000451: # J/M1 (PITCH)
045371,000452: # J/M2 (YAW)
045372,000453:
045373,000454: # T = JET ON-TIME SCALED 16384/1600 SEC
045374,000455: # J
045375,000456:
045376,000457: # THE COMPUTER VARIABLES ARE
045377,000458: # TAU (ROLL)
045378,000459: # TAU1 (PITCH)
045379,000460: # TAU2 (YAW)
045380,000461:
045381,000462:
045382,000463: 21,3740 51506 JTIME INDEX SPNDX # PICK UP S/C INERTIA/TORQUE RATIO
045383,000464: 21,3741 31623 CA J/M # SCALED (57.3/450)(B24/1600)
045384,000465: 21,3742 02060 TC SMALLMP # FOR 1-JET OPERATION
045385,000466: 21,3743 34756 CA BIT11
045386,000467: 21,3744 02060 TC SMALLMP
045387,000468: 21,3745 11510 CCS KMPAC
045388,000469: 21,3746 13752 TCF +4
045389,000470: 21,3747 13756 TCF TAUNORM
045390,000471: 21,3750 13754 TCF +4
045391,000472: 21,3751 13756 TCF TAUNORM
045392,000473: 21,3752 34750 CA POSMAX
045393,000474: 21,3753 13757 TCF DOJET
045394,000475: 21,3754 34752 CA NEGMAX
045395,000476: 21,3755 13757 TCF DOJET
045396,000477:
045397,000478: 21,3756 31511 TAUNORM CA KMPAC +1
045398,000479: 21,3757 51506 DOJET INDEX SPNDX
045399,000480: 21,3760 55561 TS TAU
045400,000481: 21,3761 11506 +2 CCS SPNDX
045401,000482: 21,3762 13456 TCF JLOOP
045402,000483: 21,3763 00006 T6PROG EXTEND # WHEN THE ROTATION COMMANDS (TAUS)
045403,000484: 21,3764 33770 DCA JETADDR # HAVE BEEN DETERMINED
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Page 1035
|
045405,000486: 21,3765 52113 DXCH T5LOC # RESET T5LOC FOR PHASE3
045406,000487: 21,3766 15323 TCF RESUME
045407,000488:
045408,000489: 21,3767 E6,1510 EBANK= KMPAC
045409,000490: 21,3767 02541 36066 JETADDR 2CADR JETSLECT
End of include-file AUTOMATIC_MANEUVERS.agc. Parent file is MAIN.agc