Source Code
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This is a reconstructed version of Luminary 130, the initial AGC program released
in November 1969 for the Apollo 13 LM. Three more releases
followed before the flown revision was finally manufactured in February 1970.
This reconstruction was created from a previous transcription of the original listing of
Luminary 131, combined with Luminary memo #129 which describes the small difference
between the Luminary 130 and 131. The reconstructed source code was verified by
matching memory-bank checksums to those listed for Luminary 130 in drawing 2021152G.
In this source code, program comments from the original (Luminary 131) code are
prefixed with '#', while those added later by the Virtual AGC project are prefixed
with '##'.
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036073,000002: ## Copyright: Public domain.
036074,000003: ## Filename: ASCENT_GUIDANCE.agc
036075,000004: ## Purpose: A section of the reconstructed source code for Luminary 130.
036076,000005: ## This was the original program released for the Apollo 13 LM,
036077,000006: ## although several more revisions would follow. It has been
036078,000007: ## reconstructed from a listing of Luminary 131, from which it
036079,000008: ## differs on only two lines in P70-P71. The difference is
036080,000009: ## described in detail in Luminary memo #129, which was used
036081,000010: ## to perform the reconstruction. This file is intended to be a
036082,000011: ## faithful reconstruction, except that the code format has been
036083,000012: ## changed to conform to the requirements of the yaYUL assembler
036084,000013: ## rather than the original YUL assembler.
036085,000014: ## Reference: pp. 836-851
036086,000015: ## Contact: Ron Burkey <info@sandroid.org>.
036087,000016: ## Website: www.ibiblio.org/apollo/index.html
036088,000017: ## Mod history: 05/26/03 RSB. Began transcribing.
036089,000018: ## 05/14/05 RSB Corrected website reference above.
036090,000019: ## 2010-10-25 JL Added missing # in comments.
036091,000020: ## 2017-01-06 RSB Page numbers now agree with those on the
036092,000021: ## original hardcopy, as opposed to the PDF page
036093,000022: ## numbers in 1701.pdf.
036094,000023: ## 2017-02-26 RSB Proofed comment text using octopus/ProoferComments.
036095,000024: ## 2017-03-01 RSB Fixed lingering typos.
036096,000025: ## 2017-03-14 RSB Comment-text fixes identified in 5-way
036097,000026: ## side-by-side diff of Luminary 69/99/116/131/210.
036098,000027: ## 2018-09-04 MAS Copied from Luminary 131 for Luminary 130.
036099,000028:
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Page 836
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036101,000030: 34,3372 BANK 34
036102,000031: 34,2000 SETLOC ASCFILT
036103,000032: 34,2000 BANK
036104,000033:
036105,000034: 34,3372 E7,1515 EBANK= DVCNTR
036106,000035:
036107,000036: 34,3372 COUNT* $$/ASENT
036108,000037:
036109,000038: 34,3372 05353 ATMAG TC PHASCHNG
036110,000039: 34,3373 00035 OCT 00035
036111,000040: 34,3374 06042 TC INTPRET
036112,000041: 34,3375 77614 BON
036113,000042: 34,3376 04705 FLRCS
036114,000043: 34,3377 60315 ASCENT
036115,000044: 34,3400 45345 DLOAD DSU
036116,000045: 34,3401 03514 ABDVCONV
036117,000046: 34,3402 26203 MINABDV
036118,000047: 34,3403 43040 BMN CLEAR
036119,000048: 34,3404 60756 ASCTERM4
036120,000049: 34,3405 04267 SURFFLAG
036121,000050: 34,3406 67214 CLEAR SLOAD
036122,000051: 34,3407 02676 RENDWFLG
036123,000052: 34,3410 31446 BIT3H
036124,000053: 34,3411 77471 DDV EXIT
036125,000054: 34,3412 03514 ABDVCONV
036126,000055: 34,3413 52155 DXCH MPAC
036127,000056: 34,3414 53641 DXCH 1/DV3
036128,000057: 34,3415 53637 DXCH 1/DV2
036129,000058: 34,3416 53635 DXCH 1/DV1
036130,000059: 34,3417 53571 DXCH 1/DV0
036131,000060: 34,3420 06042 TC INTPRET
036132,000061: 34,3421 43345 DLOAD DAD
036133,000062: 34,3422 03571 1/DV0
036134,000063: 34,3423 03635 1/DV1
036135,000064: 34,3424 43215 DAD DAD
036136,000065: 34,3425 03637 1/DV2
036137,000066: 34,3426 03641 1/DV3
036138,000067: 34,3427 41205 DMP DMP
036139,000068: 34,3430 02265 VE
036140,000069: 34,3431 21017 2SEC(9)
036141,000070: 34,3432 65252 SL3 PDDL
036142,000071: 34,3433 02271 TBUP
036143,000072: 34,3434 43342 SR1 DAD
036144,000073: 34,3435 77625 DSU
036145,000074: 34,3436 21014 6SEC(18)
036146,000075: 34,3437 16271 STODL TBUP
036147,000076: 34,3440 02265 VE
036148,000077: 34,3441 56342 SR1 DDV
036149,000078: 34,3442 02271 TBUP
036150,000079: 34,3443 36263 STCALL AT
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Page 837
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036152,000081: 34,3444 60315 ASCENT
036153,000082: 34,3445 00004 BIT3H OCT 4
036154,000083:
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Page 838
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036156,000085: 30,2315 BANK 30
036157,000086: 30,2000 SETLOC ASENT
036158,000087: 30,2000 BANK
036159,000088: 30,2315 COUNT* $$/ASENT
036160,000089:
036161,000090: 30,2315 51575 ASCENT VLOAD ABVAL
036162,000091: 30,2316 03521 R
036163,000092: 30,2317 26301 STOVL /R/MAG
036164,000093: 30,2320 03726 ZAXIS1
036165,000094: 30,2321 72441 DOT SL1
036166,000095: 30,2322 03527 V # Z.V = ZDOT*2(-8).
036167,000096: 30,2323 26313 STOVL ZDOT # ZDOT*2(-7)
036168,000097: 30,2324 03726 ZAXIS1
036169,000098: 30,2325 76435 VXV VSL1
036170,000099: 30,2326 03537 UNIT/R/ # Z X UR = LAXIS*2(-2)
036171,000100: 30,2327 02303 STORE LAXIS # LAXIS*2(-1)
036172,000101: 30,2330 72441 DOT SL1
036173,000102: 30,2331 03527 V # L.V = YDOT*2(-8).
036174,000103: 30,2332 36311 STCALL YDOT # YDOT * 2(-7)
036175,000104: 30,2333 57313 YCOMP
036176,000105: 30,2334 77775 VLOAD
036177,000106: 30,2335 03563 GDT1/2 # LOAD GDT1/2*2(-7) M/CS.
036178,000107: 30,2336 50341 V/SC DOT
036179,000108: 30,2337 27104 2SEC(18)
036180,000109: 30,2340 03537 UNIT/R/ # G.UR*2(9) = GR*2(9).
036181,000110: 30,2341 47315 PDVL VXV # STORE IN PDL(0) (2)
036182,000111: 30,2342 03537 UNIT/R/ # LOAD UNIT/R/ *2(-1).
036183,000112: 30,2343 03527 V # UR*2(-1) X V*2(-7) = H/R*2(-8).
036184,000113: 30,2344 56236 VSQ DDV # H(2)/R(2)*2(-16).
036185,000114: 30,2345 02301 /R/MAG # H(2)/R(3)*2(9).
036186,000115: 30,2346 43352 SL1 DAD
036187,000116: 30,2347 77626 STADR
036188,000117: 30,2350 75462 STORE GEFF # GEFF*2(10) M/CS/CS
036189,000118: 30,2351 45014 BOFF CALL # IF P7071FLG = 1 (I.E. P70 OR P71)
036190,000119: 30,2352 04742 P7071FLG # CALL ZDOTDCMP TO UPDATE ZDOTD
036191,000120: 30,2353 60355 +2 # ON THE BASIS OF THE LAST RP.
036192,000121: 30,2354 71524 ZDOTDCMP
036193,000122: 30,2355 45345 +2 DLOAD DSU
036194,000123: 30,2356 02277 ZDOTD
036195,000124: 30,2357 02313 ZDOT
036196,000125: 30,2360 02343 STORE DZDOT # DZDOT = (ZDOTD - ZDOT) * 2(7) M/CS.
036197,000126: 30,2361 65361 VXSC PDDL
036198,000127: 30,2362 03726 ZAXIS1
036199,000128: 30,2363 02275 YDOTD
036200,000129: 30,2364 77625 DSU
036201,000130: 30,2365 02311 YDOT
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Page 839
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036203,000132: 30,2366 02341 STORE DYDOT # DYDOT = (YDOTD - YDOT) *2(7) M/CS.
036204,000133: 30,2367 65361 VXSC PDDL
036205,000134: 30,2370 02303 LAXIS
036206,000135: 30,2371 02273 RDOTD
036207,000136: 30,2372 77625 DSU
036208,000137: 30,2373 03474 RDOT
036209,000138: 30,2374 02337 STORE DRDOT # DRDOT = (RDOTD - RDOT) * 2(7) M/CS.
036210,000139: 30,2375 53361 VXSC VAD
036211,000140: 30,2376 03537 UNIT/R/
036212,000141: 30,2377 76455 VAD VSL1
036213,000142: 30,2400 77626 STADR
036214,000143: 30,2401 74131 STORE VGVECT # VG = (DRDOT)R + (DYDOT)L + (DZDOT)Z.
036215,000144: 30,2402 41345 DLOAD DMP # LOAD TGO
036216,000145: 30,2403 03517 TGO # TGO GEFF
036217,000146: 30,2404 02315 GEFF
036218,000147: 30,2405 76561 VXSC VSL1
036219,000148: 30,2406 03537 UNIT/R/ # TGO GEFF UR
036220,000149: 30,2407 77645 BVSU
036221,000150: 30,2410 03646 VGVECT # COMPENSATED FOR GEFF
036222,000151: 30,2411 03646 STORE VGVECT # STORE FOR DOWNLINK
036223,000152: 30,2412 76521 MXV VSL1 # GET VGBODY FOR N85 DISPLAY
036224,000153: 30,2413 02146 XNBPIP
036225,000154: 30,2414 27502 STOVL VGBODY
036226,000155: 30,2415 03646 VGVECT
036227,000156: 30,2416 43046 ABVAL BOFF # MAGNITUDE OF VGVECT
036228,000157: 30,2417 04745 FLRCS # IF FLRCS=0,DO NORMAL GUIDANCE
036229,000158: 30,2420 60427 MAINENG
036230,000159: 30,2421 77671 DDV # USE TGO=VG/AT WITH RCS
036231,000160: 30,2422 20001 AT/RCS
036232,000161: 30,2423 37517 STCALL TGO # THIS WILL BE USED ON NEXT CYCLE
036233,000162: 30,2424 71475 RPCOMP1 # COMPUTE NEW RP FOR NEXT CYCLE.
036234,000163: 30,2425 77650 GOTO
036235,000164: 30,2426 60754 ASCTERM2
036236,000165: 30,2427 41471 MAINENG DDV PUSH # VG/VE IN PDL(0) (2)
036237,000166: 30,2430 02265 VE
036238,000167: 30,2431 44342 SR1 BDSU # 1 - VG / 2 VE
036239,000168: 30,2432 17772 NEARONE
036240,000169: 30,2433 41205 DMP DMP # TBUP VG(1-KT VG/VE)/VE (0)
036241,000170: 30,2434 02271 TBUP # = TGO
036242,000171: 30,2435 77625 DSU # COMPENSATE FOR TAILOFF
036243,000172: 30,2436 02267 TTO
036244,000173: 30,2437 03517 STORE TGO
036245,000174: 30,2440 57461 SR DCOMP
036246,000175: 30,2441 20614 11D
036247,000176: 30,2442 17454 STODL TTOGO # TGO *2(-28) CS
036248,000177: 30,2443 03517 TGO
036249,000178: 30,2444 45214 BON DSU
036250,000179: 30,2445 03710 IDLEFLAG
036251,000180: 30,2446 60452 T2TEST
036252,000181: 30,2447 21006 4SEC(17) # ( TGO - 4 )*2(-17) CS.
036253,000182:
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Page 840
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036255,000184: 30,2450 77640 BMN
036256,000185: 30,2451 30347 ENGOFF
036257,000186: 30,2452 77745 T2TEST DLOAD
036258,000187: 30,2453 03517 TGO
036259,000188: 30,2454 50025 DSU BMN # IF TGO - T2 NEG., GO TO CMPONENT
036260,000189: 30,2455 21010 T2A
036261,000190: 30,2456 60612 CMPONENT
036262,000191: 30,2457 45345 DLOAD DSU
036263,000192: 30,2460 02271 TBUP
036264,000193: 30,2461 03517 TGO
036265,000194: 30,2462 45071 DDV CALL # 1- TGO/TBUP
036266,000195: 30,2463 02271 TBUP
036267,000196: 30,2464 61023 LOGSUB
036268,000197: 30,2465 41461 SL PUSH # -L IN PDL(0) (2)
036269,000198: 30,2466 20206 5
036270,000199: 30,2467 44265 BDDV BDSU # -TGO/L*2(-17)
036271,000200: 30,2470 03517 TGO
036272,000201: 30,2471 02271 TBUP # TBUP + TGO/L = D12*2(-17)
036273,000202: 30,2472 43006 PUSH BON # STORE IN PDL(2) (4)
036274,000203: 30,2473 04703 FLPC # IF FLPC = 1, GO TO CONST
036275,000204: 30,2474 60503 NORATES
036276,000205: 30,2475 45345 DLOAD DSU
036277,000206: 30,2476 03517 TGO
036278,000207: 30,2477 21012 T3
036279,000208: 30,2500 43044 BPL SET # FLPC=1
036280,000209: 30,2501 60510 RATES
036281,000210: 30,2502 04463 FLPC
036282,000211: 30,2503 77745 NORATES DLOAD
036283,000212: 30,2504 06524 HI6ZEROS
036284,000213: 30,2505 02351 STORE PRATE # B = 0
036285,000214: 30,2506 36353 STCALL YRATE # D = 0
036286,000215: 30,2507 60572 CONST # GO TO CONST
036287,000216: 30,2510 45345 RATES DLOAD DSU
036288,000217: 30,2511 03517 TGO
036289,000218: 30,2512 00003 02D # TGO - D12 = D21*2(-17)
036290,000219: 30,2513 72406 PUSH SL1 # IN PDL(4) (6)
036291,000220: 30,2514 52421 BDSU SL3 # (1/2TGO - D21)*2(-13) = E * 2(-13)
036292,000221: 30,2515 03517 TGO # (8)
036293,000222: 30,2516 41325 PDDL DMP # IN PDL(6)
036294,000223: 30,2517 03517 TGO
036295,000224: 30,2520 03474 RDOT # RDOT TGO * 2(-24)
036296,000225: 30,2521 45215 DAD DSU # R + RDOT TGO
036297,000226: 30,2522 02301 /R/MAG # R + RDOT TGO - RCO
036298,000227: 30,2523 03631 RCO # MPAC = -DR *2(-24).
036299,000228: 30,2524 41325 PDDL DMP # -DR IN PDL(8) (10)
036300,000229: 30,2525 02337 DRDOT
036301,000230: 30,2526 00005 04D # D21 DRDOT*2(-24)
036302,000231: 30,2527 62415 DAD SL2 # (D21 DRDOT-DR)*2(-22) (8)
036303,000232: 30,2530 56271 DDV DDV
036304,000233: 30,2531 00007 06D # (D21 DRDOT-DR)/E*2(-9)
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Page 841
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036306,000235: 30,2532 03517 TGO
036307,000236: 30,2533 02351 STORE PRATE # B * 2(8)
036308,000237: 30,2534 71240 BMN DLOAD # B>0 NOT PERMITTED
036309,000238: 30,2535 60541 CHKBMAG
036310,000239: 30,2536 06524 HI6ZEROS
036311,000240: 30,2537 36351 STCALL PRATE
036312,000241: 30,2540 60553 PROK
036313,000242: 30,2541 56202 CHKBMAG SR4 DDV # B*2(4)
036314,000243: 30,2542 02271 TBUP # (B / TAU) * 2(21)
036315,000244: 30,2543 51025 DSU BPL
036316,000245: 30,2544 26201 PRLIMIT # ( B / TAU ) * 2(21) MAX.
036317,000246: 30,2545 60553 PROK
036318,000247: 30,2546 41345 DLOAD DMP
036319,000248: 30,2547 26201 PRLIMIT
036320,000249: 30,2550 02271 TBUP # B MAX. * 2(4)
036321,000250: 30,2551 77612 SL4 # BMAX*2(8)
036322,000251: 30,2552 02351 STORE PRATE
036323,000252: 30,2553 77745 PROK DLOAD
036324,000253: 30,2554 03517 TGO
036325,000254: 30,2555 43205 DMP DAD # YDOT TGO
036326,000255: 30,2556 02311 YDOT
036327,000256: 30,2557 02335 Y # Y + YDOT TGO
036328,000257: 30,2560 65225 DSU PDDL # Y + YDOT TGO - YCO
036329,000258: 30,2561 03633 YCO # MPAC = - DY*2(-24.) IN PDL(8) (10)
036330,000259: 30,2562 02341 DYDOT
036331,000260: 30,2563 43205 DMP DAD # D21 DYDOT - DY (8)
036332,000261: 30,2564 00005 04D
036333,000262: 30,2565 56312 SL2 DDV # (D21 DYDOT - DY)/E*2(-9)
036334,000263: 30,2566 40271 DDV SETPD # (D21 DYDOT - DY)/E TGO*2(8)
036335,000264: 30,2567 03517 TGO # = D*2(8)
036336,000265: 30,2570 00005 04
036337,000266: 30,2571 02353 STORE YRATE
036338,000267: 30,2572 41345 CONST DLOAD DMP # LOAD B*2(8)
036339,000268: 30,2573 02351 PRATE # B D12*2(-9)
036340,000269: 30,2574 00003 02D
036341,000270: 30,2575 56325 PDDL DDV # D12 B IN PDL(4) (6)
036342,000271: 30,2576 02337 DRDOT # LOAD DRDOT*2(-7)
036343,000272: 30,2577 00001 00D # -DRDOT/L*2(-7)
036344,000273: 30,2600 45302 SR2 DSU # (-DRDOT/L-D12 B)=A*2(-9) (4)
036345,000274: 30,2601 77626 STADR
036346,000275: 30,2602 61432 STODL PCONS
036347,000276: 30,2603 02353 YRATE # D*2(8)
036348,000277: 30,2604 65205 DMP PDDL # D12 D,EXCH WITH -L IN PDL(0) (2,2)
036349,000278: 30,2605 60465 BDDV SR2 # -DYDOT/L*2(-9)
036350,000279: 30,2606 02341 DYDOT
036351,000280: 30,2607 77625 DSU # (-DYDOT/L-D12 D)=C*2(-9)
036352,000281: 30,2610 00001 00D
036353,000282: 30,2611 02347 STORE YCONS
036354,000283: 30,2612 43001 CMPONENT SETPD BOFF
036355,000284: 30,2613 00001 00D
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Page 842
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036357,000286: 30,2614 04742 P7071FLG
036358,000287: 30,2615 60620 +3 # IF P7071FLG = 1 (I.E. P70 OR P71)
036359,000288: 30,2616 77624 CALL # COMPUTE NEW RP FOR NEXT CYCLE.
036360,000289: 30,2617 71501 RPCOMP2
036361,000290: 30,2620 41345 +3 DLOAD DMP
036362,000291: 30,2621 27104 100CS
036363,000292: 30,2622 02351 PRATE # B(T-T0)*2(-9)
036364,000293: 30,2623 56215 DAD DDV # (A+B(T-T0))*2(-9)
036365,000294: 30,2624 02345 PCONS # (A+B(T-T0))/TBUP*2(8)
036366,000295: 30,2625 02271 TBUP
036367,000296: 30,2626 45352 SL1 DSU
036368,000297: 30,2627 02315 GEFF # ATR*2(9)
036369,000298: 30,2630 16357 STODL ATR
036370,000299: 30,2631 27104 100CS
036371,000300: 30,2632 43205 DMP DAD
036372,000301: 30,2633 02353 YRATE
036373,000302: 30,2634 02347 YCONS # (C+D(T-T0))*2(-9)
036374,000303: 30,2635 72471 DDV SL1
036375,000304: 30,2636 02271 TBUP
036376,000305: 30,2637 02355 STORE ATY # ATY*2(9)
036377,000306: 30,2640 65361 VXSC PDDL # ATY UY*2(8) (6)
036378,000307: 30,2641 02303 LAXIS
036379,000308: 30,2642 02357 ATR
036380,000309: 30,2643 53361 VXSC VAD # (0)
036381,000310: 30,2644 03537 UNIT/R/
036382,000311: 30,2645 41572 VSL1 PUSH # AH*2(9) IN PDL(0) (6)
036383,000312: 30,2646 65246 ABVAL PDDL # AH(2) IN PDL(34)
036384,000313: 30,2647 02263 AT # AHMAG IN PDL(6) (8)
036385,000314: 30,2650 45316 DSQ DSU # (AT(2)-AH(2))*2(18)
036386,000315: 30,2651 00043 34D # =ATP2*2(18)
036387,000316: 30,2652 41525 PDDL PUSH # (12)
036388,000317: 30,2653 02263 AT
036389,000318: 30,2654 45316 DSQ DSU # (AT(2)KR(2)-AH(2))*2(18) (10)
036390,000319: 30,2655 00043 34D # =ATP3*2(18)
036391,000320: 30,2656 71240 BMN DLOAD # IF ATP3 NEG,GO TO NO-ATP
036392,000321: 30,2657 60663 NO-ATP # LOAD ATP2, IF ATP3 POS
036393,000322: 30,2660 00011 8D
036394,000323: 30,2661 52166 SQRT GOTO # ATP*2(9)
036395,000324: 30,2662 60671 AIMER
036396,000325: 30,2663 55345 NO-ATP DLOAD BDDV # KR AT/AH = KH (8)
036397,000326: 30,2664 00007 6D
036398,000327: 30,2665 77761 VXSC # KH AH*2(9)
036399,000328: 30,2666 00001 00D
036400,000329: 30,2667 14001 STODL 00D # STORE NEW AH IN PDL(0)
036401,000330: 30,2670 06524 HI6ZEROS
036402,000331: 30,2671 77765 AIMER SIGN
036403,000332: 30,2672 02343 DZDOT
036404,000333: 30,2673 02361 STORE ATP
036405,000334: 30,2674 77761 VXSC
036406,000335: 30,2675 03726 ZAXIS1 # ATP ZAXIS *2(8).
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Page 843
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036408,000337: 30,2676 53372 VSL1 VAD # AT*2(9)
036409,000338: 30,2677 00001 00D
036410,000339: 30,2700 03253 STORE UNFC/2 # WILL BE OVERWRITTEN IF IN VERT. RISE.
036411,000340: 30,2701 43001 SETPD BON
036412,000341: 30,2702 00001 00D
036413,000342: 30,2703 04704 FLPI
036414,000343: 30,2704 60216 P12RET
036415,000344: 30,2705 77614 BON
036416,000345: 30,2706 04701 FLVR
036417,000346: 30,2707 60763 CHECKALT
036418,000347: 30,2710 57575 MAINLINE VLOAD VCOMP
036419,000348: 30,2711 03537 UNIT/R/
036420,000349: 30,2712 17261 STODL UNWC/2
036421,000350: 30,2713 03654 TXO
036422,000351: 30,2714 51025 DSU BPL
036423,000352: 30,2715 01234 PIPTIME
036424,000353: 30,2716 60730 ASCTERM
036425,000354: 30,2717 77614 BON
036426,000355: 30,2720 04711 ROTFLAG
036427,000356: 30,2721 57273 ANG1CHEK
036428,000357: 30,2722 43014 CLRXFLAG CLEAR BON # ALLOW X-AXIS OVERRIDE
036429,000358: 30,2723 06666 XOVINFLG
036430,000359: 30,2724 04702 P7071FLG # ONLY ACTIVATE R29 IF IN P12.
036431,000360: 30,2725 60730 ASCTERM
036432,000361: 30,2726 77614 CLEAR
036433,000362: 30,2727 01664 NOR29FLG
036434,000363: 30,2730 77776 ASCTERM EXIT
036435,000364: 30,2731 30105 CA FLAGWRD9
036436,000365: 30,2732 74742 MASK FLRCSBIT
036437,000366: 30,2733 10000 CCS A
036438,000367: 30,2734 12755 TCF ASCTERM3
036439,000368: 30,2735 06042 TC INTPRET
036440,000369: 30,2736 77624 CALL
036441,000370: 30,2737 61100 FINDCDUW -2
036442,000371: 30,2740 77776 ASCTERM1 EXIT
036443,000372: 30,2741 30105 +1 CA FLAGWRD9 # INSURE THAT THE NOUN 63 DISPLAY IS
036444,000373: 30,2742 74742 MASK FLRCSBIT # BYPASSED IF WE ARE IN THE RCS TRIMMING
036445,000374: 30,2743 10000 CCS A # MODE OF OPERATION
036446,000375: 30,2744 12755 TCF ASCTERM3
036447,000376: 30,2745 30104 CA FLAGWRD8 # BYPASS DISPLAYS IF ENGINE FAILURE IS
036448,000377: 30,2746 74742 MASK FLUNDBIT # INDICATED.
036449,000378: 30,2747 10000 CCS A
036450,000379: 30,2750 12755 TCF ASCTERM3
036451,000380: 30,2751 33020 CAF V06N63*
036452,000381: 30,2752 04616 TC BANKCALL
036453,000382: 30,2753 20444 CADR GODSP
036454,000383: 30,2754 77776 ASCTERM2 EXIT
036455,000384: 30,2755 15155 ASCTERM3 TCF ENDOFJOB
036456,000385: 30,2756 77776 ASCTERM4 EXIT
036457,000386: 30,2757 00004 INHINT
|
|
Page 844
|
036459,000388: 30,2760 04674 TC IBNKCALL # NO GUIDANCE THIS CYCLE -- HENCE ZERO
036460,000389: 30,2761 40166 CADR STOPRATE # THE DAP COMMANDED RATES.
036461,000390: 30,2762 12741 TCF ASCTERM1 +1
036462,000391:
036463,000392: 30,2763 45345 CHECKALT DLOAD DSU
036464,000393: 30,2764 02301 /R/MAG
036465,000394: 30,2765 02333 /LAND/
036466,000395: 30,2766 50025 DSU BMN # IF H LT 25K CHECK Z AXIS ORIENTATION.
036467,000396: 30,2767 26205 25KFT
036468,000397: 30,2770 16666 CHECKYAW
036469,000398: 30,2771 43014 EXITVR CLEAR BON
036470,000399: 30,2772 04661 FLVR
036471,000400: 30,2773 04711 ROTFLAG
036472,000401: 30,2774 60710 MAINLINE
036473,000402: 30,2775 43345 DLOAD DAD
036474,000403: 30,2776 01234 PIPTIME
036475,000404: 30,2777 25734 10SECS
036476,000405: 30,3000 37654 STCALL TXO
036477,000406: 30,3001 60710 MAINLINE
036478,000407: 30,3002 77614 EXITVR1 CLRGO
036479,000408: 30,3003 04631 ROTFLAG
036480,000409: 30,3004 60771 EXITVR
036481,000410:
036482,000411: 27,2000 SETLOC ASENT1
036483,000412: 27,2000 BANK
036484,000413: 27,3273 COUNT* $$/ASENT
036485,000414:
036486,000415: 27,3273 53575 ANG1CHEK VLOAD UNIT
036487,000416: 27,3274 03253 UNFC/2
036488,000417: 27,3275 77641 DOT
036489,000418: 27,3276 02146 XNBPIP
036490,000419: 27,3277 51025 DSU BPL
036491,000420: 27,3300 02571 COSTHET1
036492,000421: 27,3301 57310 OFFROT
036493,000422: 27,3302 50375 VLOAD DOT
036494,000423: 27,3303 02146 XNBPIP
036495,000424: 27,3304 03537 UNIT/R/
036496,000425: 27,3305 50025 DSU BMN
036497,000426: 27,3306 02573 COSTHET2
036498,000427: 27,3307 71450 KEEPVR1
036499,000428: 27,3310 77614 OFFROT CLRGO
036500,000429: 27,3311 04631 ROTFLAG
036501,000430: 27,3312 60722 CLRXFLAG
036502,000431:
036503,000432: 07,2666 BANK 7
036504,000433: 07,2000 SETLOC ASENT2
036505,000434: 07,2000 BANK
036506,000435: 07,2666 COUNT* $$/ASENT
036507,000436:
036508,000437: 07,2666 07,2666 SETXFLAG = CHECKYAW
036509,000438:
|
|
Page 845
|
036511,000440: 07,2666 77614 CHECKYAW SET
036512,000441: 07,2667 06466 XOVINFLG # PROHIBIT X-AXIS OVERRIDE
036513,000442: 07,2670 74345 DLOAD VXSC
036514,000443: 07,2671 02355 ATY
036515,000444: 07,2672 02303 LAXIS
036516,000445: 07,2673 74325 PDDL VXSC
036517,000446: 07,2674 02361 ATP
036518,000447: 07,2675 03726 ZAXIS1
036519,000448: 07,2676 53455 VAD UNIT
036520,000449: 07,2677 45325 PDDL DSU
036521,000450: 07,2700 03474 RDOT
036522,000451: 07,2701 13504 40FPS
036523,000452: 07,2702 52044 BPL GOTO
036524,000453: 07,2703 61002 EXITVR1
036525,000454: 07,2704 71446 KEEPVR
036526,000455:
036527,000456: 05,3503 BANK 5
036528,000457: 05,2000 SETLOC ASENT3
036529,000458: 05,2000 BANK
036530,000459: 05,3503 COUNT* $$/ASENT
036531,000460:
036532,000461: 05,3503 00017 23305 40FPS 2DEC 0.12192 B-7
036533,000462:
036534,000463: 34,3446 BANK 34
036535,000464: 34,2000 SETLOC ASENT8
036536,000465: 34,2000 BANK
036537,000466: 34,3446 COUNT* $$/ASENT
036538,000467:
036539,000468: 34,3446 45575 KEEPVR VLOAD STADR # RECALL LOSVEC FROM PUSHLIST
036540,000469: 34,3447 74516 STORE UNWC/2
036541,000470: 34,3450 77775 KEEPVR1 VLOAD
036542,000471: 34,3451 03537 UNIT/R/
036543,000472: 34,3452 37253 STCALL UNFC/2
036544,000473: 34,3453 60730 ASCTERM
036545,000474:
036546,000475: 14,2347 BANK 14
036547,000476: 14,2000 SETLOC ASENT4
036548,000477: 14,2000 BANK
036549,000478: 14,2347 COUNT* $$/ASENT
036550,000479:
036551,000480: 14,2347 77634 ENGOFF RTB
036552,000481: 14,2350 21574 LOADTIME
036553,000482: 14,2351 43225 DSU DAD
036554,000483: 14,2352 01234 PIPTIME
036555,000484: 14,2353 03454 TTOGO
036556,000485: 14,2354 77476 DCOMP EXIT
036557,000486: 14,2355 07262 TC TPAGREE # FORCE SIGN AGREEMENT ON MPAC, MPAC +1.
036558,000487: 14,2356 35016 CAF EBANK7
036559,000488: 14,2357 54003 TS EBANK
|
|
Page 846
|
036561,000490: 14,2360 E7,1516 EBANK= TGO
036562,000491: 14,2360 00004 INHINT
036563,000492: 14,2361 10155 CCS MPAC +1
036564,000493: 14,2362 12365 TCF +3 # C(A) = DT - 1 BIT
036565,000494: 14,2363 12365 TCF +2 # C(A) = 0
036566,000495: 14,2364 34755 CAF ZERO # C(A) = 0
036567,000496: 14,2365 64753 AD BIT1 # C(A) = 1 BIT OR DT.
036568,000497: 14,2366 55644 TS ENGOFFDT
036569,000498: 14,2367 05173 TC TWIDDLE
036570,000499: 14,2370 02402 ADRES ENGOFF1
036571,000500: 14,2371 05353 TC PHASCHNG
036572,000501: 14,2372 47014 OCT 47014
036573,000502: 14,2373 76133 -GENADR ENGOFFDT
036574,000503: 14,2374 E7,1516 EBANK= TGO
036575,000504: 14,2374 02402 30067 2CADR ENGOFF1
036576,000505:
036577,000506: 14,2376 06042 TC INTPRET
036578,000507: 14,2377 52014 SET GOTO
036579,000508: 14,2400 03470 IDLEFLAG # DISABLE DELTA-V MONITOR
036580,000509: 14,2401 60452 T2TEST
036581,000510:
036582,000511: 14,2402 04674 ENGOFF1 TC IBNKCALL # SHUT OFF THE ENGINE.
036583,000512: 14,2403 75555 CADR ENGINOF2
036584,000513:
036585,000514: 14,2404 35027 CAF PRIO17 # SET UP A JOB FOR THE ASCENT GUIDANCE
036586,000515: 14,2405 05105 TC FINDVAC # POSTBURN LOGIC.
036587,000516: 14,2406 E7,1455 EBANK= WHICH
036588,000517: 14,2406 02416 30067 2CADR CUTOFF
036589,000518:
036590,000519: 14,2410 05353 TC PHASCHNG
036591,000520: 14,2411 07024 OCT 07024
036592,000521: 14,2412 17000 OCT 17000
036593,000522: 14,2413 E7,1516 EBANK= TGO
036594,000523: 14,2413 02416 30067 2CADR CUTOFF
036595,000524:
036596,000525: 14,2415 15261 TCF TASKOVER
036597,000526:
036598,000527: 14,2416 05504 CUTOFF TC UPFLAG # SET FLRCS FLAG.
036599,000528: 14,2417 00214 ADRES FLRCS
036600,000529:
036601,000530: 14,2420 32437 -5 CAF V16N63
036602,000531: 14,2421 04616 TC BANKCALL
036603,000532: 14,2422 20477 CADR GOFLASH
036604,000533: 14,2423 12426 TCF +3
036605,000534: 14,2424 12430 TCF CUTOFF1
036606,000535: 14,2425 12420 TCF -5
036607,000536:
036608,000537: 14,2426 04635 +3 TC POSTJUMP
036609,000538: 14,2427 71464 CADR TERMASC
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|
Page 847
|
036611,000540:
036612,000541: 14,2430 00004 CUTOFF1 INHINT
036613,000542: 14,2431 04674 TC IBNKCALL # ZERO ATTITUDE ERRORS BEFORE REDUCING DB.
036614,000543: 14,2432 40154 CADR ZATTEROR
036615,000544: 14,2433 04674 TC IBNKCALL
036616,000545: 14,2434 40141 CADR SETMINDB
036617,000546: 14,2435 04635 TC POSTJUMP
036618,000547: 14,2436 71454 CADR CUTOFF2
036619,000548:
036620,000549: 14,2437 04077 V16N63 VN 1663
036621,000550: 34,3454 BANK 34
036622,000551: 34,2000 SETLOC ASENT8
036623,000552: 34,2000 BANK
036624,000553: 34,3454 COUNT* $$/ASENT
036625,000554:
036626,000555: 34,3454 05353 CUTOFF2 TC PHASCHNG
036627,000556: 34,3455 04024 OCT 04024
036628,000557:
036629,000558: 34,3456 33474 CAF V16N85C
036630,000559: 34,3457 04616 TC BANKCALL
036631,000560: 34,3460 20477 CADR GOFLASH
036632,000561: 34,3461 13464 TCF TERMASC
036633,000562: 34,3462 13464 TCF +2 # PROCEED
036634,000563: 34,3463 13454 TCF CUTOFF2
036635,000564:
036636,000565: 34,3464 05353 TERMASC TC PHASCHNG
036637,000566: 34,3465 04024 OCT 04024
036638,000567:
036639,000568: 34,3466 00004 INHINT # RESTORE DEADBAND DESIRED BY ASTRONAUT.
036640,000569: 34,3467 04674 TC IBNKCALL
036641,000570: 34,3470 40115 CADR RESTORDB
036642,000571: 34,3471 05516 TC DOWNFLAG # DISALLOW ABORTS AT THIS TIME.
036643,000572: 34,3472 00215 ADRES LETABORT
036644,000573: 34,3473 16001 TCF GOTOPOOH
036645,000574:
036646,000575: 34,3474 04125 V16N85C VN 1685
036647,000576:
036648,000577: 34,3475 77745 RPCOMP1 DLOAD # FLRCS = 1 (TRIM MODE)
036649,000578: 34,3476 06524 HI6ZEROS
036650,000579: 34,3477 02345 STORE PCONS # SET PCONS = PRATE = 0 SO THAT
036651,000580: 34,3500 02351 STORE PRATE # RP = R + RDOT TGO
036652,000581: 34,3501 41345 RPCOMP2 DLOAD DMP # FLRCS = 0 (GUIDANCE MODE)
036653,000582: 34,3502 02351 PRATE # LEAVE PCONS AND PRATE ALONE SO THAT
036654,000583: 34,3503 03517 TGO # RP = R + RDOT TGO + (PCONS*TGO**2)/
036655,000584: 34,3504 43205 DMP DAD # (2 TBUP) + (PRATE*TGO**3)/(6 TBUP)
036656,000585: 34,3505 33645 THIRD
036657,000586: 34,3506 02345 PCONS
036658,000587: 34,3507 41205 DMP DMP
036659,000588: 34,3510 03517 TGO
036660,000589: 34,3511 03517 TGO
036661,000590: 34,3512 72471 DDV SL1
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|
Page 848
|
036663,000592: 34,3513 02271 TBUP
036664,000593: 34,3514 65215 DAD PDDL
036665,000594: 34,3515 02301 /R/MAG
036666,000595: 34,3516 03474 RDOT
036667,000596: 34,3517 43205 DMP DAD
036668,000597: 34,3520 03517 TGO
036669,000598: 34,3521 77626 STADR
036670,000599: 34,3522 75152 STORE RP
036671,000600: 34,3523 77616 RVQ
036672,000601:
036673,000602: 34,3524 45020 ZDOTDCMP STQ CALL # COMPUTE CENTRAL ANGLE (0)
036674,000603: 34,3525 02574 ASCSAVE
036675,000604: 34,3526 71554 THETCOMP
036676,000605: 34,3527 43205 DMP DAD # CENTRAL ANGLE IN MPAC
036677,000606: 34,3530 02623 KPARM
036678,000607: 34,3531 02621 JPARM
036679,000608: 34,3532 41425 DSU PUSH # RA IN MPAC AND IN PUSHLIST (2)
036680,000609: 34,3533 02625 RP
036681,000610: 34,3534 51025 DSU BPL
036682,000611: 34,3535 02563 RAMIN
036683,000612: 34,3536 71541 +3
036684,000613: 34,3537 65345 DLOAD PDDL # RA < RAMIN. SET RA = RAMIN. (2)
036685,000614: 34,3540 02563 RAMIN
036686,000615: 34,3541 41345 +3 DLOAD DMP
036687,000616: 34,3542 00001 0D
036688,000617: 34,3543 16025 MUM(-37)
036689,000618: 34,3544 77725 PDDL
036690,000619: 34,3545 41215 DAD DMP
036691,000620: 34,3546 02625 RP
036692,000621: 34,3547 02625 RP
036693,000622: 34,3550 75465 BDDV SQRT # (0)
036694,000623: 34,3551 77626 STADR
036695,000624: 34,3552 41500 STCALL ZDOTD # UPDATE ZDOTD FOR GUIDANCE AND DOWNLINK.
036696,000625: 34,3553 02574 ASCSAVE
036697,000626:
036698,000627: 34,3554 53575 THETCOMP VLOAD UNIT
036699,000628: 34,3555 03521 R
036700,000629: 34,3556 53515 PDVL UNIT # (6)
036701,000630: 34,3557 01720 R(CSM)
036702,000631: 34,3560 47206 PUSH VXV # (12)
036703,000632: 34,3561 00001 0D
036704,000633: 34,3562 77641 DOT
036705,000634: 34,3563 02325 WM
036706,000635: 34,3564 24037 STOVL 30D # (6)
036707,000636: 34,3565 72441 DOT SL1 # (0)
036708,000637: 34,3566 75326 ARCCOS SIGN
036709,000638: 34,3567 00037 30D
036710,000639: 34,3570 77616 RVQ
036711,000640:
036712,000641: 34,3571 E5,1574 ASCSAVE = CG
036713,000642:
|
|
Page 849
|
036715,000644: 27,3313 BANK 27
036716,000645: 27,2000 SETLOC ASENT1
036717,000646: 27,2000 BANK
036718,000647: 27,3313 COUNT* $$/ASENT
036719,000648:
036720,000649: 27,3313 50375 YCOMP VLOAD DOT
036721,000650: 27,3314 03537 UNIT/R/
036722,000651: 27,3315 03720 QAXIS
036723,000652: 27,3316 41312 SL2 DMP
036724,000653: 27,3317 03631 RCO
036725,000654: 27,3320 02335 STORE Y
036726,000655: 27,3321 77616 RVQ
036727,000656:
036728,000657: 30,3005 BANK 30
036729,000658: 30,2000 SETLOC ASENT
036730,000659: 30,2000 BANK
036731,000660:
|
|
Page 850
|
036733,000662: # ASCENT GUIDANCE CONSTANTS
036734,000663:
036735,000664: 30,3005 33,3103 100CS EQUALS 2SEC(18)
036736,000665: 30,3005 30,3007 T2A EQUALS 2SEC(17)
036737,000666: 30,3005 00062 00000 4SEC(17) 2DEC 400 B-17
036738,000667: 30,3007 00031 00000 2SEC(17) 2DEC 200 B-17
036739,000668: 30,3011 00175 00000 T3 2DEC 1000 B-17
036740,000669: 30,3013 00045 20000 6SEC(18) 2DEC 600 B-18
036741,000670: 30,3015 00010 BIT4H OCT 10
036742,000671: 30,3016 14400 00000 2SEC(9) 2DEC 200 B-9
036743,000672: 30,3020 01477 V06N63* VN 0663
036744,000673: 30,3021 01514 V06N76 VN 0676
036745,000674: 30,3022 01441 V06N33A VN 0633
036746,000675:
036747,000676: 33,2200 BANK 33
036748,000677: 33,2000 SETLOC ASENT6
036749,000678: 33,2000 BANK
036750,000679: 33,2200 COUNT* $$/ASENT
036751,000680:
036752,000681: 33,2200 75751 41775 PRLIMIT 2DEC -.0639 # (B/TBUP)MIN=-.1FT.SEC(-3)
036753,000682: 33,2202 00022 07212 MINABDV 2DEC .0356 B-5 # 10 PERCENT BIGGER THAN GRAVITY
036754,000683: 33,2204 00007 16100 25KFT 2DEC 7620 B-24
036755,000684: 33,2206 E7,1570 1/DV0 = MASS1
036756,000685:
|
|
Page 851
|
036758,000687: # THE LOGARITHM SUBROUTINE
036759,000688:
036760,000689: 24,3700 BANK 24
036761,000690: 30,2000 SETLOC FLOGSUB
036762,000691: 30,2000 BANK
036763,000692:
036764,000693: # INPUT ..... X IN MPAC
036765,000694: # OUTPUT ..... -LOG(X) IN MPAC
036766,000695:
036767,000696: 30,3023 44301 LOGSUB NORM BDSU
036768,000697: 30,3024 00163 MPAC +6
036769,000698: 30,3025 17772 NEARONE
036770,000699: 30,3026 77776 EXIT
036771,000700: 30,3027 07225 TC POLY
036772,000701: 30,3030 00006 DEC 6 B-14
036773,000702: 30,3031 00000 00002 2DEC .0000000060
036774,000703: 30,3033 76777 77175 2DEC -.0312514377
036775,000704: 30,3035 77400 75416 2DEC -.0155686771
036776,000705: 30,3037 77507 65515 2DEC -.0112502068
036777,000706: 30,3041 77741 63547 2DEC -.0018545108
036778,000707: 30,3043 77052 55373 2DEC -.0286607906
036779,000708: 30,3045 01167 30361 2DEC .0385598563
036780,000709: 30,3047 76520 75267 2DEC -.0419361902
036781,000710:
036782,000711: 30,3051 34755 CAF ZERO
036783,000712: 30,3052 54156 TS MPAC +2
036784,000713: 30,3053 00006 EXTEND
036785,000714: 30,3054 33070 DCA CLOG2/32
036786,000715: 30,3055 52155 DXCH MPAC
036787,000716: 30,3056 52132 DXCH BUF +1
036788,000717: 30,3057 30162 CA MPAC +6
036789,000718: 30,3060 07312 TC SHORTMP
036790,000719: 30,3061 52156 DXCH MPAC +1
036791,000720: 30,3062 52155 DXCH MPAC
036792,000721: 30,3063 52132 DXCH BUF +1
036793,000722: 30,3064 20155 DAS MPAC
036794,000723: 30,3065 06042 TC INTPRET
036795,000724: 30,3066 43476 DCOMP RVQ
036796,000725:
036797,000726: 30,3067 00542 34414 CLOG2/32 2DEC .0216608494
036798,000727:
End of include-file ASCENT_GUIDANCE.agc. Parent file is MAIN.agc