Source Code
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These source-code files were from the printout at the MIT Museum, with many thanks
to Deborah Douglas, the Museum's Curator of Science and Technology, for releasing
it to us. The printout was digitally photographed by Paul Fjeld. A team of
volunteers transcribed the source code manually from these images or, where
appropriate, modified already-transcribed but similar source Colossus 249 (Apollo 9)
source code to agree with the images from the printout. Note that the page images
presented online are of reduced quality, and that higher-quality images
are available. Report any conversion errors or legibility
problems in page images to info@sandroid.org.
Notations on the program listing read, in part:GAP: ASSEMBLE REVISION 055 OF AGC PROGRAM COMANCHE BY NASA 2021113-051 10:28 APR. 1,1969Note that the date is the date of the printout, not the date of the program revision. |
039410,000002: ## Copyright: Public domain.
039411,000003: ## Filename: P37_P70.agc
039412,000004: ## Purpose: Part of the source code for Colossus 2A, AKA Comanche 055.
039413,000005: ## It is part of the source code for the Command Module's (CM)
039414,000006: ## Apollo Guidance Computer (AGC), for Apollo 11.
039415,000007: ## Assembler: yaYUL
039416,000008: ## Contact: Jim Lawton <jim.lawton@gmail.com>.
039417,000009: ## Website: www.ibiblio.org/apollo.
039418,000010: ## Pages: 890-933
039419,000011: ## Mod history: 2009-05-11 JVL Adapted from the Colossus249/ file
039420,000012: ## of the same name, using Comanche055 page
039421,000013: ## images.
039422,000014: ## 2009-05-20 RSB Added missing label V2T179. Fixed POODOO -> P00DOO.
039423,000015: ## 2009-05-23 RSB In RTD18, corrected a STOVL DELVLVC to
039424,000016: ## STODL DELVLVC and a STODL 02D to STORE 02D.
039425,000017: ## 2010-08-28 JL Added missing comment characters.
039426,000018: ##
039427,000019: ## This source code has been transcribed or otherwise adapted from digitized
039428,000020: ## images of a hardcopy from the MIT Museum. The digitization was performed
039429,000021: ## by Paul Fjeld, and arranged for by Deborah Douglas of the Museum. Many
039430,000022: ## thanks to both. The images (with suitable reduction in storage size and
039431,000023: ## consequent reduction in image quality as well) are available online at
039432,000024: ## www.ibiblio.org/apollo. If for some reason you find that the images are
039433,000025: ## illegible, contact me at info@sandroid.org about getting access to the
039434,000026: ## (much) higher-quality images which Paul actually created.
039435,000027: ##
039436,000028: ## Notations on the hardcopy document read, in part:
039437,000029: ##
039438,000030: ## Assemble revision 055 of AGC program Comanche by NASA
039439,000031: ## 2021113-051. 10:28 APR. 1, 1969
039440,000032: ##
039441,000033: ## This AGC program shall also be referred to as
039442,000034: ## Colossus 2A
039443,000035:
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Page 890 |
039445,000037: 31,3700 BANK 31
039446,000038: 36,2000 SETLOC RTE1
039447,000039: 36,2000 BANK
039448,000040:
039449,000041: 36,2466 E7,1631 EBANK= RTEDVD
039450,000042: 36,2466 COUNT 31/P37
039451,000043:
039452,000044: # PROGRAM DESCRIPTION: P37, RETURN TO EARTH
039453,000045:
039454,000046: # DESCRIPTION
039455,000047: # A RETURN TO EARTH TRAJECTORY IS COMPUTED PROVIDED THE CSM IS OUTSIDE THE LUNAR SPHERE OF INFLUENCE AT THE
039456,000048: # TIME OF IGNITION. INITIALLY A CONIC TRAJECTORY IS DETERMINED AND RESULTING IGNITION AND REENTRY PARAMETERS ARE
039457,000049: # DISPLAYED TO THE ASTRONAUT. THEN IF THE ASTRONAUT SO DESIRES, A PRECISION TRAJECTORY IS DETERMINED WTIH THE
039458,000050: # RESULTING IGNITION AND REENTRY PARAMETERS DISPLAYED. UPON FINAL ACCEPTANCE BY THE ASTRONAUT, THE PROGRAM
039459,000051: # COMPUTES AND STORES THE TARGET PARAMETERS FOR RETURN TO EARTH FOR USE BY SPS PROGRAM (P40) OR RCS PROGRAM (P41).
039460,000052:
039461,000053: # CALLING SEQUENCE
039462,000054: # L TC P37
039463,000055:
039464,000056: # SUBROUTINES CALLED
039465,000057: # PREC100
039466,000058: # V2T100
039467,000059: # RTENCK2
039468,000060: # RTENCK3
039469,000061: # TIMERAD
039470,000062: # PARAM
039471,000063: # V2T100
039472,000064: # GAMDV10
039473,000065: # XT1LIM
039474,000066: # DVCALC
039475,000067: # RTENCK1
039476,000068: # INTSTALL
039477,000069: # INTEGRVS
039478,000070: # RTEVN
039479,000071: # RETDISP
039480,000072: # TMRAD100
039481,000073: # AUGEKUGL
039482,000074: # LAT-LONG
039483,000075: # TMRAD100
039484,000076: # TIMERAD
039485,000077: # INVC100
039486,000078: # CSMPREC
039487,000079: # GETERAD
039488,000080: # TIMETHET
039489,000081: # P370ALRM
039490,000082: # VN1645
039491,000083: # POLY
039492,000084:
039493,000085: # ERASABLE INITIALIZATION REQUIRED
039494,000086: # CSM STATE VECTOR
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Page 891 |
039496,000088: # NJETSFLG NUMBER OF JETS IF THE RCS PROPULSION SYSTEM SELECTED STATE FLAG 0=4 JETS 1=2 JETS
039497,000089:
039498,000090: # ASTRONAUT INPUT
039499,000091: # SPRTETIG TIME OF IGNITION (OVERLAYS TIG) DP B28 CS
039500,000092: # VPRED DESIRED CHANGE IN VELOCITY AT TIG(PROGRM COMPUTED IF 0) DP B7 METERS/CS
039501,000093: # GAMMAEI DESIRED FLIGHT PATH ANGLE AT REENTRY (COMPUTED IF 0) DP B0 REVS + ABOVE HORIZ.
039502,000094: # OPTION2 PROPULSION SYSTEM OPTION SP B14 1=SPS, 2=RCS
039503,000095:
039504,000096: # OUTPUT
039505,000097: # CONIC OR PRECISION TRAJECTORY DISPLAY
039506,000098: # VPRED VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE DP B7 METERS/CS
039507,000099: # T3TOT4 TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE DP B28 CS
039508,000100: # GAMMAEI FLIGHT PATH ANGLE AT 400,00 FT. ENTRY ALTITUDE DP B0 REVS + ABOVE HORIZON
039509,000101: # DELVLVC INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR B7 METERS/CS
039510,000102: # LAT(SPL) LATITUDE OF THE LANDING SITE DP B0 REVS
039511,000103: # LNG(SPL) LONGITUDE OF THE LANDING SITE DP B0 REVS
039512,000104: # TARGETING COMPUTATION DISPLAY
039513,000105: # TIG RECOMPUTED TIG BASED ON THRUST OPTION DP B28 CS
039514,000106: # TTOGO TIME FROM TIG DP B28 CS
039515,000107: # +MGA POSITIVE MIDDLE GIMBAL ANGLE DP B0 REVS -.02 IF REFSMFLG=0
039516,000108: # THRUST PROGRAM COMMUNICATION
039517,000109: # XDELVFLG EXTERNAL DELTA V FLAG STATE FLAG SET 0 FOR LAMBERT AIMPT
039518,000110: # NORMSW LAMBERT AIMPT ROTATION SWITCH STATE FLAG SET 0 FOR NO ROTATION
039519,000111: # ECSTEER CROSS PRODUCT STEERING CONSTANT SP B2 SET 1
039520,000112: # RTARG CONICALLY INTEGRATED REENTRY POSITION VECTOR VECTOR B29 METERS
039521,000113: # TPASS4 REENTRY TIME DP B28 CS
039522,000114:
039523,000115: 36,2466 05412 P37 TC PHASCHNG # P37 IS NOT RESTARTABLE
039524,000116: 36,2467 00004 OCT 4
039525,000117:
039526,000118: 36,2470 06006 TC INTPRET
039527,000119: 36,2471 66170 AXT,1 SXA,1
039528,000120: 36,2472 04000 OCT 04000
039529,000121: 36,2473 03424 ECSTEER
039530,000122: 36,2474 77745 DLOAD
039531,000123: 36,2475 15335 ZEROVECS
039532,000124: 36,2476 03767 STORE VPRED
039533,000125: 36,2477 03771 STORE GAMMAEI
039534,000126: 36,2500 77776 EXIT
039535,000127: 36,2501 33246 CAF V6N33RTE # INPUT TIG STORED IN SPRTETIG
039536,000128: 36,2502 03235 TCR P370GOF # OVERLAYED WITH TIG
039537,000129: 36,2503 12501 TCF -2 # DISPLAY NEW DATA
039538,000130: 36,2504 33252 CAF V6N60RTE # INPUT REENTRY ANGLE IN GAMMAEI
039539,000131: 36,2505 03211 TCR P37GFRB1 # AND DESIRED DELTA V IN RETDVD
039540,000132: 36,2506 12504 TCF -2 # DISPLAY NEW DATA
039541,000133: 36,2507 06006 RTE299 TC INTPRET
039542,000134: 36,2510 71331 SSP DLOAD
039543,000135: 36,2511 00122 OVFIND
039544,000136: 36,2512 00000 0
039545,000137: 36,2513 03767 VPRED
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Page 892 |
039547,000139: 36,2514 17632 STODL RTEDVD
039548,000140: 36,2515 03771 GAMMAEI
039549,000141: 36,2516 17634 STODL RTEGAM2D
039550,000142: 36,2517 33514 1RTEB13
039551,000143: 36,2520 17735 STODL CONICX1
039552,000144: 36,2521 33620 C4RTE
039553,000145: 36,2522 37652 STCALL MAMAX1
039554,000146: 36,2523 64450 INVC100 # GET R(T1)/,V(T1)/,UR1/,UH/
039555,000147: 36,2524 71214 CLEAR DLOAD
039556,000148: 36,2525 02662 SLOWFLG
039557,000149: 36,2526 03632 RTEDVD
039558,000150: 36,2527 51444 BPL ABS
039559,000151: 36,2530 74540 RTE317
039560,000152: 36,2531 03632 STORE RTEDVD
039561,000153: 36,2532 45345 DLOAD DSU
039562,000154: 36,2533 03646 R(T1)
039563,000155: 36,2534 33622 K1RTE
039564,000156: 36,2535 43040 BMN SET
039565,000157: 36,2536 74540 RTE317
039566,000158: 36,2537 02462 SLOWFLG
039567,000159: 36,2540 77545 RTE317 DLOAD EXIT
039568,000160: 36,2541 03646 R(T1)
039569,000161: 36,2542 07171 TC POLY
039570,000162: 36,2543 00002 DEC 2 B-14
039571,000163: 36,2544 02544 35436 2DEC 181000434. B-31
039572,000164: 36,2546 14040 05066 2DEC 1.50785145 B-2
039573,000165: 36,2550 44052 60030 2DEC* -6.49993057 E-9 B27*
039574,000166: 36,2552 26415 25057 2DEC* 9.76938926 E-18 B56*
039575,000167: 36,2554 06006 TC INTPRET
039576,000168: 36,2555 77752 SL1
039577,000169: 36,2556 17654 STODL MAMAX2 # C0+C1*R+C2*R**2+C3*R**3=MAMAX2 B30
039578,000170: 36,2557 33544 M9RTEB28
039579,000171: 36,2560 17730 STODL NN1A
039580,000172: 36,2561 33624 K2RTE
039581,000173: 36,2562 17636 RTE320 STODL RCON # RCON=K2
039582,000174: 36,2563 03634 RTEGAM2D
039583,000175: 36,2564 44254 BZE BDSU
039584,000176: 36,2565 74574 RTE340 # GOTORTE340 IF REENTRY ANGLE NOT INPUT
039585,000177: 36,2566 33502 1RTEB2
039586,000178: 36,2567 71406 PUSH COS # PL02D
039587,000179: 36,2570 73525 PDDL SIN
039588,000180: 36,2571 45465 BDDV STADR # PL00D
039589,000181: 36,2572 40051 STCALL X(T2) # X(T2)=COT(GAM2D) B0
039590,000182: 36,2573 74607 RTE360
039591,000183: 36,2574 45345 RTE340 DLOAD DSU
039592,000184: 36,2575 03646 R(T1)
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Page 893 |
039594,000186: 36,2576 33622 K1RTE
039595,000187: 36,2577 71240 BMN DLOAD
039596,000188: 36,2600 74604 RTE350
039597,000189: 36,2601 33630 K4RTE
039598,000190: 36,2602 37726 STCALL X(T2) # X(T2)=K4
039599,000191: 36,2603 74607 RTE360
039600,000192: 36,2604 77745 RTE350 DLOAD
039601,000193: 36,2605 33626 K3RTE
039602,000194: 36,2606 03726 STORE X(T2) # X(T2)=K3
039603,000195: 36,2607 77624 RTE360 CALL
039604,000196: 36,2610 65075 V2T100
039605,000197: 36,2611 52054 BZE GOTO
039606,000198: 36,2612 74614 RTE367
039607,000199: 36,2613 74776 RTEALRM
039608,000200: 36,2614 77775 RTE367 VLOAD
039609,000201: 36,2615 03640 R(T1)/
039610,000202: 36,2616 16657 STODL RVEC
039611,000203: 36,2617 03636 RCON
039612,000204: 36,2620 26760 STOVL RDESIRED
039613,000205: 36,2621 03700 V2(T1)/
039614,000206: 36,2622 36746 STCALL VVEC
039615,000207: 36,2623 64277 TMRAD100
039616,000208: 36,2624 77615 DAD
039617,000209: 36,2625 03716 T1
039618,000210: 36,2626 17736 STODL T2
039619,000211: 36,2627 03634 RTEGAM2D
039620,000212: 36,2630 52054 BZE GOTO
039621,000213: 36,2631 74633 RTE369
039622,000214: 36,2632 74655 RTE372
039623,000215: 36,2633 51575 RTE369 VLOAD ABVAL
039624,000216: 36,2634 03710 V(T2)/
039625,000217: 36,2635 77776 EXIT
039626,000218: 36,2636 07171 TC POLY
039627,000219: 36,2637 00002 DEC 2 B-14
039628,000220: 36,2640 00000 00000 2DEC 0 B-28
039629,000221: 36,2642 47021 65002 2DEC -4.8760771 E-2 B4
039630,000222: 36,2644 35610 07722 2DEC 4.5419476 E-4 B11
039631,000223: 36,2646 63772 63276 2DEC -1.4317675 E-6 B18
039632,000224:
039633,000225: 36,2650 06006 TC INTPRET
039634,000226: 36,2651 77615 DAD
039635,000227: 36,2652 01352 RTED1
039636,000228: 36,2653 52052 SL3 GOTO # X(T2),=D1+D2V2+D3V2**2+D4V2**3
039637,000229: 36,2654 74657 RTE373
039638,000230: 36,2655 77745 RTE372 DLOAD # X(T2),=X(T2)
039639,000231: 36,2656 03726 X(T2)
039640,000232: 36,2657 41425 RTE373 DSU PUSH # X(T2)ERR B0 PL02D
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Page 894 |
039642,000234: 36,2660 03726 X(T2)
039643,000235: 36,2661 53575 VLOAD UNIT
039644,000236: 36,2662 03656 R(T2)/ # B58
039645,000237: 36,2663 36152 STCALL ALPHAV
039646,000238: 36,2664 26505 GETERAD
039647,000239: 36,2665 77615 DAD
039648,000240: 36,2666 33634 E3RTE
039649,000241: 36,2667 45206 PUSH DSU # RCON,=(E1/1+E2BETA11)**.5)+E3 B29 PL04D
039650,000242: 36,2670 03636 RCON
039651,000243: 36,2671 45246 ABS DSU
039652,000244: 36,2672 33600 EPC2RTE
039653,000245: 36,2673 52040 BMN GOTO
039654,000246: 36,2674 74676 RTE374
039655,000247: 36,2675 74703 RTE375
039656,000248: 36,2676 51545 RTE374 DLOAD ABS
039657,000249: 36,2677 00001 00D
039658,000250: 36,2700 50025 DSU BMN
039659,000251: 36,2701 33602 EPC3RTE
039660,000252: 36,2702 74753 P37E
039661,000253: 36,2703 43345 RTE375 DLOAD DAD
039662,000254: 36,2704 03730 NN1A
039663,000255: 36,2705 33522 1RTEB28
039664,000256: 36,2706 67240 BMN SLOAD
039665,000257: 36,2707 74713 RTE380
039666,000258: 36,2710 33562 OCT605
039667,000259: 36,2711 77650 GOTO
039668,000260: 36,2712 74776 RTEALRM # TOO MANY ITERATIONS
039669,000261: 36,2713 03730 RTE380 STORE NN1A
039670,000262: 36,2714 53025 DSU BZE
039671,000263: 36,2715 33546 M8RTEB28
039672,000264: 36,2716 74734 RTE385
039673,000265: 36,2717 45345 DLOAD DSU
039674,000266: 36,2720 00001 00D
039675,000267: 36,2721 03666 DRCON
039676,000268: 36,2722 65301 NORM PDDL # X(T2)ERR-X(T2)ERR,=Z1 PL06D
039677,000269: 36,2723 00047 X1
039678,000270: 36,2724 03670 RPRE'
039679,000271: 36,2725 56225 DSU DDV # X(T2)PRI-X(T2)=Z2 PL04D
039680,000272: 36,2726 03726 X(T2)
039681,000273: 36,2727 53605 DMP SL* # DX(T2)=X(T2)ERR(Z2/Z1)
039682,000274: 36,2730 00001 00D
039683,000275: 36,2731 20201 0,1
039684,000276: 36,2732 77650 GOTO
039685,000277: 36,2733 74736 RTE390
039686,000278: 36,2734 77745 RTE385 DLOAD # DX(T2)=X(T2)ERR
039687,000279: 36,2735 00001 00D
039688,000280: 36,2736 14021 RTE390 STODL 16D # DX(T2) PL02D
039689,000281: 36,2737 77626 STADR
039690,000282: 36,2740 60141 STODL RCON # RCON=RCON,
039691,000283: 36,2741 77600 BOV
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Page 895 |
039693,000285: 36,2742 74607 RTE360
039694,000286: 36,2743 17666 STODL DRCON # X(T2)ERR,=X(T2)ERR
039695,000287: 36,2744 03726 X(T2)
039696,000288: 36,2745 17670 STODL RPRE' # X(T2)PRI=X(T2)
039697,000289: 36,2746 00021 16D
039698,000290: 36,2747 77615 DAD
039699,000291: 36,2750 03726 X(T2)
039700,000292: 36,2751 37726 STCALL X(T2) # X(T2)=X(T2)+DX(T2)
039701,000293: 36,2752 74607 RTE360 # REITERATE
039702,000294: 36,2753 77624 P37E CALL # DISPLAY CONIC SOLUTION
039703,000295: 36,2754 75002 RTEVN
039704,000296: 36,2755 41345 RTE505 DLOAD DMP
039705,000297: 36,2756 03720 PCON
039706,000298: 36,2757 03754 BETA1
039707,000299: 36,2760 53021 BDSU BZE
039708,000300: 36,2761 03636 RCON
039709,000301: 36,2762 74770 RTE510
039710,000302: 36,2763 71240 BMN DLOAD
039711,000303: 36,2764 74770 RTE510
039712,000304: 36,2765 33502 1RTEB2
039713,000305: 36,2766 77650 GOTO # ENTRY NEAR APOGEE
039714,000306: 36,2767 74772 RTE515
039715,000307: 36,2770 57545 RTE510 DLOAD DCOMP # ENTRY NEAR PERIGEE
039716,000308: 36,2771 33502 1RTEB2
039717,000309: 36,2772 37761 RTE515 STCALL PHI2
039718,000310: 36,2773 64541 PREC100 # PRECISION TRAJECTORY COMPUTATION
039719,000311: 36,2774 77654 RTE625 BZE
039720,000312: 36,2775 75030 P37G
039721,000313: 36,2776 77624 RTEALRM CALL
039722,000314: 36,2777 64262 P370ALRM
039723,000315: 36,3000 77776 EXIT
039724,000316: 36,3001 12466 TCF P37 # RECYCLE AFTER ALARM DISPLAY
039725,000317:
039726,000318: # RETURN TO EARTH DISPLAY SUBROUTINE
039727,000319:
039728,000320: 36,3002 45020 RTEVN STQ CALL
039729,000321: 36,3003 03763 VNSTORE
039730,000322: 36,3004 64316 RTEDISP # DISPLAY PREPARATION
039731,000323: 36,3005 77776 EXIT
039732,000324: 36,3006 33250 CAF V6N61RTE # LATITUDE,LONGITUDE,BLANK
039733,000325: 36,3007 03221 TCR P370GOFR # IN LAT(SPL),LNG(SPL),-
039734,000326: 36,3010 35015 CAF FOUR
039735,000327: 36,3011 03215 TCR 37BLANK +1
039736,000328: 36,3012 13017 TCF +5
039737,000329: 36,3013 12466 TCF P37 # RECYCLE
039738,000330: 36,3014 33251 CAF V6N39RTE # T21 HRS,MIN,SEC IN T3TOT4
039739,000331: 36,3015 03235 TCR P370GOF
039740,000332: 36,3016 12466 TCF P37 # RECYCLE
039741,000333: 36,3017 33252 CAF V6N60RTE # DISPLAY BLANK,V(T2),FPA2
039742,000334: 36,3020 03211 TCR P37GFRB1 # IN -,VPRED,GAMMAEI
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Page 896 |
039744,000336: 36,3021 12466 TCF P37 # RECYCLE
039745,000337: 36,3022 33253 CAF V6N81RTE # DISPLAY DELTA V (LV) IN DELVLVC
039746,000338: 36,3023 03235 TCR P370GOF
039747,000339: 36,3024 12466 TCF P37 # RECYCLE
039748,000340: 36,3025 06006 TCR INTPRET
039749,000341: 36,3026 77650 GOTO
039750,000342: 36,3027 03763 VNSTORE
039751,000343:
039752,000344: # PRECISION DISPLAY, TARGETING COMPUTATION AND RTE END PROCESSING
039753,000345:
039754,000346: 36,3030 77624 P37G CALL
039755,000347: 36,3031 75002 RTEVN
039756,000348: 36,3032 77776 EXIT
039757,000349: 36,3033 35023 P37N CAF SEVEN
039758,000350: 36,3034 55131 TS OPTION1
039759,000351: 36,3035 35017 CAF ONE
039760,000352: 36,3036 55132 TS OPTION2
039761,000353: 36,3037 33247 CAF V4N06RTE # DISPLAY RCS OR SPS OPTION SPS ASSUMED
039762,000354: 36,3040 03235 TCR P370GOF
039763,000355: 36,3041 13037 TCF -2 # RECYCLE
039764,000356: 36,3042 06006 TC INTPRET # PROCEED
039765,000357: 36,3043 67201 SETPD SLOAD
039766,000358: 36,3044 00001 00D
039767,000359: 36,3045 01133 OPTION2
039768,000360: 36,3046 53025 DSU BZE
039769,000361: 36,3047 33514 1RTEB13
039770,000362: 36,3050 75057 P37Q
039771,000363: 36,3051 60335 SLOAD NORM # SPS
039772,000364: 36,3052 00111 EMDOT
039773,000365: 36,3053 00047 X1
039774,000366: 36,3054 52125 PDDL GOTO
039775,000367: 36,3055 33552 VCSPS
039776,000368: 36,3056 75070 P37T
039777,000369: 36,3057 43145 P37Q DLOAD BON # RCS
039778,000370: 36,3060 33556 MDOTRCS
039779,000371: 36,3061 00700 NJETSFLG
039780,000372: 36,3062 75064 P37R
039781,000373: 36,3063 77752 SL1
039782,000374: 36,3064 77752 P37R SL1
039783,000375: 36,3065 65301 NORM PDDL
039784,000376: 36,3066 00047 X1
039785,000377: 36,3067 33554 VCRCS
039786,000378: 36,3070 56325 P37T PDDL DDV # DV/VC B7 -B5 = B2 PL02D
039787,000379: 36,3071 03706 DV
039788,000380: 36,3072 77776 EXIT
039789,000381: 36,3073 07171 TC POLY
039790,000382: 36,3074 00001 DEC 1 B-14
039791,000383: 36,3075 00001 05070 2DEC 5.66240507 E-4 B-3
039792,000384: 36,3077 17527 36700 2DEC 9.79487897 E-1 B-1
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Page 897 |
039794,000386: 36,3101 47114 70670 2DEC -.388281955 B1
039795,000387: 36,3103 06006 TC INTPRET
039796,000388: 36,3104 67206 PUSH SLOAD # (1-E)**(-DV/VC)=A B3 PL04D
039797,000389: 36,3105 03076 WEIGHT/G
039798,000390: 36,3106 56205 DMP DDV # DTB=(M0/MDOT)A B16+B3-B3=B16 PL00D
039799,000391: 36,3107 41257 SL* DMP
039800,000392: 36,3110 20165 0 -12D,1
039801,000393: 36,3111 33560 CSUBT
039802,000394: 36,3112 77621 BDSU
039803,000395: 36,3113 03716 T1
039804,000396: 36,3114 03413 STORE TIG # TIG=T1-CT*DTB B28
039805,000397: 36,3115 77776 EXIT
039806,000398: 36,3116 33246 CAF V6N33RTE # DISPLAY BIASED TIG
039807,000399: 36,3117 03235 TCR P370GOF
039808,000400: 36,3120 13116 TCF -2
039809,000401: 36,3121 35021 CAF ZERO
039810,000402: 36,3122 55125 TS VHFCNT
039811,000403: 36,3123 55126 TS TRKMKCNT
039812,000404: 36,3124 06006 TC INTPRET
039813,000405: 36,3125 77624 CALL # CONICALLY INTEGRATE FROM R1,V1 OVER T12
039814,000406: 36,3126 63700 RTENCK1
039815,000407: 36,3127 53575 VLOAD UNIT # PL00D
039816,000408: 36,3130 03656 R(T2)/
039817,000409: 36,3131 74315 PDVL VXSC # UR2 B1 PL06D
039818,000410: 36,3132 03740 UR1/
039819,000411: 36,3133 33564 MCOS7.5
039820,000412: 36,3134 74315 PDVL VXSC # -UR1(COS7.5) B1 PL12D
039821,000413: 36,3135 03746 UH/
039822,000414: 36,3136 33566 MSIN7.5
039823,000415: 36,3137 50255 VAD DOT # K/=-UR1(COS7.5)-UH(SIN7.5) B2 PL00D
039824,000416: 36,3140 50015 DAD BMN
039825,000417: 36,3141 33570 MCOS22.5
039826,000418: 36,3142 75167 P37W
039827,000419: 36,3143 50375 VLOAD DOT # K/ . UR2 GR COS22.5
039828,000420: 36,3144 03746 UH/
039829,000421: 36,3145 03656 R(T2)/
039830,000422: 36,3146 71240 BMN DLOAD
039831,000423: 36,3147 75153 P37U
039832,000424: 36,3150 33572 THETA165
039833,000425: 36,3151 52006 PUSH GOTO
039834,000426: 36,3152 75155 P37V
039835,000427: 36,3153 41545 P37U DLOAD PUSH
039836,000428: 36,3154 33574 THETA210
039837,000429: 36,3155 77756 P37V SIN
039838,000430: 36,3156 16732 STODL SNTH
039839,000431: 36,3157 43146 COS CLEAR
039840,000432: 36,3160 03666 RVSW
039841,000433: 36,3161 26734 STOVL CSTH
039842,000434: 36,3162 03640 R(T1)/
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Page 898 |
039844,000436: 36,3163 26657 STOVL RVEC
039845,000437: 36,3164 03700 V2(T1)/
039846,000438: 36,3165 36746 STCALL VVEC
039847,000439: 36,3166 24744 TIMETHET
039848,000440: 36,3167 43014 P37W CLEAR CLEAR
039849,000441: 36,3170 01267 XDELVFLG
039850,000442: 36,3171 03665 NORMSW
039851,000443: 36,3172 77214 SET VLOAD
039852,000444: 36,3173 01071 FINALFLG
039853,000445: 36,3174 77626 STADR
039854,000446: 36,3175 60362 STODL RTARG
039855,000447: 36,3176 00037 T
039856,000448: 36,3177 77615 DAD
039857,000449: 36,3200 03716 T1
039858,000450: 36,3201 27656 STOVL TPASS4
039859,000451: 36,3202 03700 V2(T1)/
039860,000452: 36,3203 77651 VSU
039861,000453: 36,3204 03672 V(T1)/
039862,000454: 36,3205 37646 STCALL DELVSIN
039863,000455: 36,3206 73002 VN1645
039864,000456: 36,3207 77650 GOTO
039865,000457: 36,3210 75167 P37W
039866,000458:
039867,000459: # SUBROUTINE TO GO TO GOFLASHR AND BLANK R1
039868,000460:
039869,000461: 36,3211 00006 P37GFRB1 EXTEND
039870,000462: 36,3212 23762 QXCH SPRTEX
039871,000463: 36,3213 03221 TCR P370GOFR
039872,000464: 36,3214 35017 37BLANK CAF ONE
039873,000465: 36,3215 05526 TCR BLANKET
039874,000466: 36,3216 15217 TCF ENDOFJOB
039875,000467: 36,3217 01762 TC SPRTEX # RECYCLE
039876,000468: 36,3220 13244 TCF P37PROC # PROCEED
039877,000469:
039878,000470: # SUBROUTINE TO GO TO GOFLASHR
039879,000471:
039880,000472: 36,3221 00006 P370GOFR EXTEND
039881,000473: 36,3222 23733 QXCH RTENCKEX
039882,000474: 36,3223 04662 TCR BANKCALL
039883,000475: 36,3224 21057 CADR GOFLASHR
039884,000476: 36,3225 14106 TCF GOTOP00H # TERMINATE
039885,000477: 36,3226 13231 TCF +3
039886,000478: 36,3227 13233 TCF +4
039887,000479: 36,3230 01733 TC RTENCKEX # IMMEDIATE RETURN
039888,000480: 36,3231 51733 INDEX RTENCKEX # PROCEED
039889,000481: 36,3232 10004 TCF 0 +4
039890,000482: 36,3233 51733 INDEX RTENCKEX # RECYCLE
039891,000483: 36,3234 10003 TCF 0 +3
039892,000484:
039893,000485: # SUBROUTINE TO GO TO GOFLASH
039894,000486:
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Page 899 |
039896,000488: 36,3235 00006 P370GOF EXTEND
039897,000489: 36,3236 23762 QXCH SPRTEX
039898,000490: 36,3237 04662 TCR BANKCALL
039899,000491: 36,3240 20720 CADR GOFLASH
039900,000492: 36,3241 14106 TCF GOTOP00H
039901,000493: 36,3242 13244 TCF +2
039902,000494: 36,3243 01762 TC SPRTEX
039903,000495: 36,3244 51762 P37PROC INDEX SPRTEX
039904,000496: 36,3245 10001 TCF 0 +1
039905,000497: 36,3246 01441 V6N33RTE VN 0633
039906,000498: 36,3247 01006 V4N06RTE VN 0406
039907,000499: 36,3250 01475 V6N61RTE VN 0661
039908,000500: 36,3251 01447 V6N39RTE VN 0639
039909,000501: 36,3252 01474 V6N60RTE VN 0660
039910,000502: 36,3253 01521 V6N81RTE VN 0681
039911,000503: 32,2262 BANK 32
039912,000504: 32,2000 SETLOC RTE
039913,000505: 32,2000 BANK
039914,000506: 32,2262 COUNT 32/RTE
039915,000507:
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Page 900 |
039917,000509: # ALARM DISPLAY SUBROUTINE
039918,000510:
039919,000511: 32,2262 77420 P370ALRM STQ EXIT
039920,000512: 32,2263 03762 SPRTEX
039921,000513: 32,2264 30154 CA MPAC
039922,000514: 32,2265 05764 TC VARALARM
039923,000515: 32,2266 32276 CAF V5N09RTE
039924,000516: 32,2267 04662 TC BANKCALL
039925,000517: 32,2270 20720 CADR GOFLASH
039926,000518: 32,2271 14106 TCF GOTOP00H
039927,000519: 32,2272 12266 TCF -4
039928,000520: 32,2273 06006 TC INTPRET
039929,000521: 32,2274 77650 GOTO
039930,000522: 32,2275 03762 SPRTEX
039931,000523: 32,2276 01211 V5N09RTE VN 0509
039932,000524:
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Page 901 |
039934,000526: # TIME RADIUS CALLING SUBROUTINE
039935,000527:
039936,000528: # INPUT
039937,000529: # RVEC INITIAL POSITION VECTOR VECTOR B29 METERS
039938,000530: # VVEC INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039939,000531: # RDESIRED FINAL RADIUS FOR WHICH TRANSFER TIME IS TO BE COMPUTED DP B29 METERS
039940,000532: # CONICX1 X1 SETTING FOR CONIC SUBROUTINES -2=EARTH SP B14
039941,000533:
039942,000534: # OUTPUT
039943,000535: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039944,000536: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039945,000537: # T12 TRANSFER TIME TO FINAL RADIUS DP B28 CS
039946,000538:
039947,000539: 32,2277 43020 TMRAD100 STQ CLEAR
039948,000540: 32,2300 03733 RTENCKEX
039949,000541: 32,2301 03666 RVSW
039950,000542: 32,2302 67164 AXC,2 SXA,2
039951,000543: 32,2303 20000 OCT 20000
039952,000544: 32,2304 02756 SGNRDOT
039953,000545: 32,2305 45140 LXC,1 CALL
039954,000546: 32,2306 03734 CONICX1
039955,000547: 32,2307 25556 TIMERAD
039956,000548: 32,2310 27710 STOVL V(T2)/ # PL00D
039957,000549: 32,2311 77626 STADR
039958,000550: 32,2312 60121 STODL R(T2)/
039959,000551: 32,2313 00037 T
039960,000552: 32,2314 37724 STCALL T12
039961,000553: 32,2315 03733 RTENCKEX
039962,000554:
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Page 902 |
039964,000556: # DISPLAY CALCULATION SUBROUTINE
039965,000557:
039966,000558: # DESCRIPTION
039967,000559: # OUTPUT FOR DISPLAY IS CONVERTED TO PROPER UNITS AND PLACED IN OUTPUT STORAGE REGISTERS. LANDING SITE
039968,000560: # COMPUTATION FOR DETERMINING LANDING SITE LATITUDE AND LONGITUDE IS INCLUDED IN THE ROUTINE.
039969,000561:
039970,000562: # CALLING SEQUENCE
039971,000563: # L CALL
039972,000564: # L+1 RTEDISP
039973,000565:
039974,000566: # SUBROUTINES CALLED
039975,000567: # TMRAD100
039976,000568: # AUGEKUGL
039977,000569: # LAT-LONG
039978,000570:
039979,000571: # ERASABLE INITIALIZATION REQUIRED
039980,000572: # PUSHLIST
039981,000573: # NONE
039982,000574: # MPAC
039983,000575: # NONE
039984,000576: # OTHER
039985,000577: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039986,000578: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039987,000579: # T2 FINAL TIME DP B28 CS
039988,000580: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039989,000581: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7
039990,000582: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039991,000583: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039992,000584:
039993,000585: # OUTPUT
039994,000586: # VPRED VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE DP B7 METERS/CS
039995,000587: # T3TOT4 TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE DP B28 CS
039996,000588: # GAMMAEI FLIGHT PATH ANGLE AT 400,000 FT. ENTRY ALTITUDE DP B0 REVS + ABOVE HORIZ
039997,000589: # DELVLVC INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR B7 METERS/CS
039998,000590: # LAT(SPL) LATITUDE OF THE LANDING SITE DP B0 REVS
039999,000591: # LNG(SPL) LONGITUDE OF THE LANDING SITE DP B0 REVS
040000,000592:
040001,000593: 32,2316 77220 RTEDISP STQ VLOAD # DISPLAY
040002,000594: 32,2317 03762 SPRTEX
040003,000595: 32,2320 03710 V(T2)/
040004,000596: 32,2321 65256 UNIT PDDL
040005,000597: 32,2322 00045 36D
040006,000598: 32,2323 17767 STODL VPRED # V(T2)
040007,000599: 32,2324 03736 T2
040008,000600: 32,2325 77625 DSU
040009,000601: 32,2326 03413 SPRTETIG
040010,000602: 32,2327 26641 STOVL T3TOT4 # T21
040011,000603: 32,2330 03656 R(T2)/
040012,000604: 32,2331 50256 UNIT DOT
040013,000605: 32,2332 77752 SL1
040014,000606:
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Page 903 |
040016,000608: 32,2333 44326 ARCCOS BDSU
040017,000609: 32,2334 33502 1RTEB2
040018,000610: 32,2335 27771 STOVL GAMMAEI # FLIGHT PATH ANGLE T2
040019,000611: 32,2336 03700 V2(T1)/
040020,000612: 32,2337 41451 VSU PUSH
040021,000613: 32,2340 03672 V(T1)/
040022,000614: 32,2341 57441 DOT DCOMP
040023,000615: 32,2342 03740 UR1/
040024,000616: 32,2343 41515 PDVL PUSH
040025,000617: 32,2344 63345 DLOAD PDVL
040026,000618: 32,2345 33524 ZERORTE
040027,000619: 32,2346 55441 DOT VDEF
040028,000620: 32,2347 03746 UH/
040029,000621: 32,2350 77772 VSL1
040030,000622: 32,2351 17405 STODL DELVLVC
040031,000623: 32,2352 03405 DELVLVC
040032,000624: 32,2353 57414 BOFF DCOMP
040033,000625: 32,2354 02741 RETROFLG
040034,000626: 32,2355 64357 RTD18
040035,000627: 32,2356 03405 STORE DELVLVC # NEGATE X COMPONENT, RETROGRADE
040036,000628: 32,2357 51575 RTD18 VLOAD ABVAL
040037,000629: 32,2360 03405 DELVLVC
040038,000630: 32,2361 27773 STOVL VGDISP
040039,000631: 32,2362 03656 R(T2)/
040040,000632: 32,2363 02657 STORE RVEC # ***** LANDING SITE COMPUTATION *****
040041,000633: 32,2364 45246 ABVAL DSU
040042,000634: 32,2365 33550 30480RTE
040043,000635: 32,2366 26760 STOVL RDESIRED
040044,000636: 32,2367 03710 V(T2)/
040045,000637: 32,2370 36746 STCALL VVEC
040046,000638: 32,2371 64277 TMRAD100 # R3,V3,T23 FROM TIMERAD
040047,000639: 32,2372 53575 VLOAD UNIT
040048,000640: 32,2373 03656 R(T2)/
040049,000641: 32,2374 53515 PDVL UNIT # UR3 PL06D
040050,000642: 32,2375 03710 V(T2)/
040051,000643: 32,2376 72441 DOT SL1 # GAMMAE=ARCSIN(UR3 . UV3) PL00D
040052,000644: 32,2377 65336 ARCSIN PDDL # V(T3) PL02D
040053,000645: 32,2400 00045 36D
040054,000646: 32,2401 51525 PDDL ABS
040055,000647: 32,2402 45006 PUSH CALL # /GAMMAE/ PL04D
040056,000648: 32,2403 64075 AUGEKUGL # PHIE PL06D
040057,000649: 32,2404 43215 DAD DAD
040058,000650: 32,2405 03724 T12 # T23
040059,000651: 32,2406 03736 T2
040060,000652: 32,2407 00003 STORE 02D # T(LS)=T2&T23&TE
040061,000653: 32,2410 53135 SLOAD BZE
040062,000654: 32,2411 03377 P37RANGE
040063,000655: 32,2412 64414 RTD22
040064,000656: 32,2413 00005 STORE 04D # OVERRIDE RANGE (PCR 261)
040065,000657: 32,2414 73545 RTD22 DLOAD SIN
040066,000658:
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Page 904 |
040068,000660: 32,2415 00005 04D
040069,000661: 32,2416 17403 STODL LNG(SPL) # LNG(SPL)=SIN(PHIE) PL04D
040070,000662: 32,2417 77746 COS
040071,000663: 32,2420 03401 STORE LAT(SPL) # LAT(SPL)=COS(PHIE)
040072,000664: 32,2421 53575 VLOAD UNIT
040073,000665: 32,2422 03656 R(T2)/
040074,000666: 32,2423 41406 PUSH PUSH
040075,000667: 32,2424 53515 PDVL UNIT # PL22D
040076,000668: 32,2425 03710 V(T2)/
040077,000669: 32,2426 47315 PDVL VXV
040078,000670: 32,2427 53435 VXV UNIT # UH3=UNIT(UR3 X UV3 X UR3) PL10D
040079,000671: 32,2430 63361 VXSC PDVL
040080,000672: 32,2431 03403 LNG(SPL)
040081,000673: 32,2432 53361 VXSC VAD # PL04D
040082,000674: 32,2433 03401 LAT(SPL)
040083,000675: 32,2434 43014 CLEAR CLEAR # T(LS) IN MPAC
040084,000676: 32,2435 00662 ERADFLAG
040085,000677: 32,2436 01663 LUNAFLAG
040086,000678: 32,2437 16152 STODL ALPHAV # ALPHAV=UR3(COSPHIE)+UH3(SINPHIE) PL02D
040087,000679: 32,2440 77624 CALL
040088,000680: 32,2441 26370 LAT-LONG
040089,000681: 32,2442 77745 DLOAD
040090,000682: 32,2443 01104 LAT
040091,000683: 32,2444 17401 STODL LAT(SPL) # LATITUDE LANDING SITE *****
040092,000684: 32,2445 01106 LONG
040093,000685: 32,2446 37403 STCALL LNG(SPL) # LONGITUDE LANDING SITE *****
040094,000686: 32,2447 03762 SPRTEX
040095,000687: 32,2450 COUNT* $$/RTE
040096,000688:
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Page 905 |
040098,000690: # INITIAL VECTOR SUBROUTINE
040099,000691:
040100,000692: # DESCRIPTION
040101,000693: # A PRECISION INTEGRATION OF THE STATE VECTOR TO THE TIME OF IGNITION IS PERFORMED. PRECOMPUTATIONS OCCUR.
040102,000694:
040103,000695: # CALLING SEQUENCE
040104,000696: # L CALL
040105,000697: # L+1 INVC100
040106,000698:
040107,000699: # NORMAL EXIT MODE
040108,000700: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040109,000701:
040110,000702: # ALARM EXIT MODE
040111,000703: # AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 612 FOR STATE VECTOR IN MOONS SPHERE OF INFLUENCE
040112,000704:
040113,000705: # SUBROUTINES CALLED
040114,000706: # CSMPREC
040115,000707:
040116,000708: # ERASABLE INITIALIZATION REQUIRED
040117,000709: # PUSHLIST
040118,000710: # NONE
040119,000711: # MPAC
040120,000712: # NONE
040121,000713: # OTHER
040122,000714: # SPRTETIG TIME OF IGNITION DP B28 CS
040123,000715: # CSM STATE VECTOR
040124,000716:
040125,000717: # OUTPUT
040126,000718: # R(T1)/ INITIAL POSITION VECTOR AT TIG VECTOR B29 METERS
040127,000719: # V(T1)/ INITIAL VELOCITY VECTOR AT TIG VECTOR B7 METERS/CS
040128,000720: # T1 INITIAL VECTOR TIME (TIG) DP B28 CS
040129,000721: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040130,000722: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040131,000723: # CFPA COSINE OF INITIAL FLIGHT PATH ANGLE DP B1
040132,000724:
040133,000725: 32,2450 71220 INVC100 STQ DLOAD
040134,000726: 32,2451 03762 SPRTEX
040135,000727: 32,2452 03413 SPRTETIG
040136,000728: 32,2453 34041 STCALL TDEC1
040137,000729: 32,2454 27071 CSMPREC # PRECISION INTEGRATION R0,V0 TO R1,V1
040138,000730: 32,2455 67175 VLOAD SXA,2
040139,000731: 32,2456 00001 RATT
040140,000732: 32,2457 03755 P(T1)
040141,000733: 32,2460 27640 STOVL R(T1)/
040142,000734: 32,2461 00007 VATT
040143,000735: 32,2462 17672 STODL V(T1)/
040144,000736: 32,2463 00015 TAT
040145,000737: 32,2464 03716 STORE T1
040146,000738: 32,2465 53135 SLOAD BZE
040147,000739: 32,2466 03756 P(T1)
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Page 906 |
040149,000741: 32,2467 64473 INVC109
040150,000742: 32,2470 52135 INVC107 SLOAD GOTO
040151,000743: 32,2471 33563 OCT612
040152,000744: 32,2472 74776 RTEALRM # R1,V1 NOT IN PROPER SPHERE OF INFLUENCE
040153,000745: 32,2473 53575 INVC109 VLOAD UNIT
040154,000746: 32,2474 03640 R(T1)/
040155,000747: 32,2475 17740 STODL UR1/ # UR1/ B1
040156,000748: 32,2476 00045 36D
040157,000749: 32,2477 27646 STOVL R(T1) # R(T1) B29
040158,000750: 32,2500 03672 V(T1)/
040159,000751: 32,2501 77656 UNIT
040160,000752: 32,2502 03746 STORE UV1/
040161,000753: 32,2503 72441 DOT SL1
040162,000754: 32,2504 03740 UR1/
040163,000755: 32,2505 03757 STORE CFPA # CFPA B1
040164,000756: 32,2506 45246 ABS DSU
040165,000757: 32,2507 33576 EPC1RTE
040166,000758: 32,2510 71240 BMN DLOAD
040167,000759: 32,2511 64520 INVC115 # NOT NEAR RECTILINEAR
040168,000760: 32,2512 33502 1RTEB2
040169,000761: 32,2513 41525 PDDL PUSH
040170,000762: 32,2514 33524 ZERORTE
040171,000763: 32,2515 41466 VDEF PUSH # N/ = (0,0,1)
040172,000764: 32,2516 77650 GOTO
040173,000765: 32,2517 64524 INVC120
040174,000766: 32,2520 47375 INVC115 VLOAD VXV
040175,000767: 32,2521 03740 UR1/
040176,000768: 32,2522 03746 UV1/
040177,000769: 32,2523 77606 PUSH # N/ = UR X UV B2
040178,000770: 32,2524 71214 INVC120 CLEAR DLOAD
040179,000771: 32,2525 02661 RETROFLG
040180,000772: 32,2526 51006 PUSH BPL
040181,000773: 32,2527 64533 INVC125
040182,000774: 32,2530 57575 VLOAD VCOMP # RETROGRADE ORBIT
040183,000775: 32,2531 43006 PUSH SET
040184,000776: 32,2532 02461 RETROFLG
040185,000777: 32,2533 77775 INVC125 VLOAD
040186,000778: 32,2534 53435 VXV UNIT
040187,000779: 32,2535 03740 UR1/
040188,000780: 32,2536 03746 STORE UH/ # UH/ B1
040189,000781: 32,2537 77650 GOTO
040190,000782: 32,2540 03762 SPRTEX
040191,000783:
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Page 907 |
040193,000785: # PRECISION TRAJECTORY COMPUTATION SUBROUTINE
040194,000786:
040195,000787: # DESCRIPTION
040196,000788: # A NUMERICALLY INTEGRATED TRAJECTORY IS GENERATED WHICH FOR THE RETURN TO EARTH PROBLEM SATISFIES THE REENTRY
040197,000789: # CONSTRAINTS (RCON AND X(T2)) ACHIEVED BY THE INITIAL CONIC TRAJECTORY AND MEETS THE DVD REQUIREMENT AS CLOSELY
040198,000790: # AS POSSIBLE.
040199,000791:
040200,000792: # CALLING SEQUENCE
040201,000793: # L CALL
040202,000794: # L+1 PREC100
040203,000795:
040204,000796: # NORMAL EXIT MODE
040205,000797: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040206,000798:
040207,000799: # ALARM EXIT MODE
040208,000800: # AT L+2 OF CALLING SEQUENCE WITH MPAC =
040209,000801: # OCTAL 605 FOR EXCESS ITERATIONS
040210,000802: # OCTAL 613 FOR REENTRY ANGLE OUT OF LIMITS
040211,000803:
040212,000804: # SUBROUTINES CALLED
040213,000805: # INTSTALL
040214,000806: # RTENCK2
040215,000807: # RTENCK3
040216,000808: # TIMERAD
040217,000809: # PARAM
040218,000810: # V2T100
040219,000811:
040220,000812: # ERASABLE INITIALIZATION REQUIRED
040221,000813: # PUSHLIST
040222,000814: # NONE
040223,000815: # MPAC
040224,000816: # NONE
040225,000817: # OTHER
040226,000818: # R(T1)/ INITIAL POSITION VECTOR VECTOR B29/B27 METERS
040227,000819: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040228,000820: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040229,000821: # T1 INITIAL VECTOR TIME DP B28 CS
040230,000822: # T12 INITIAL TO FINAL POSITION TIME DP B28 CS
040231,000823: # RCON CONIC FINAL RADIUS DP B29/B27 METERS
040232,000824: # R(T1) MAGNITUDE OF INITIAL POSITION VECTOR DP B29/B27 METERS
040233,000825: # X(T2) COTANGENT OF FINAL FLIGHT PATH ANGLE DP B0
040234,000826: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE DP B5
040235,000827: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
040236,000828: # MAMAX1 MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
040237,000829: # MAMAX2 MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
040238,000830: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040239,000831: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040240,000832: # BETA1 1+X(T2)**2 DP B1
040241,000833: # PHI2 PERIGEE OR APOGEE INDICATOR DP B2 -1 PERIGEE, +1 APOGEE
040242,000834:
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Page 908 |
040244,000836:
040245,000837: # OUTPUT
040246,000838: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
040247,000839: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
040248,000840: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
040249,000841: # T2 FINAL TIME DP B28 CENTISECONDS
040250,000842:
040251,000843: # DEBRIS
040252,000844: # RD FINAL R DESIRED DP B29/B27 METERS
040253,000845: # R/APRE R/A DP B6
040254,000846: # P/RPRE P/R DP B4
040255,000847: # RPRE MAGNITUDE OF R(T2)/ DP B29/B27 METERS
040256,000848: # X(T2)PRE COTANGENT OF GAMMA2 DP B0
040257,000849: # DT12 CORRECTION TO FINAL TIME T2 DP B28 CENTISECONDS
040258,000850: # RCON FINAL RADIUS DP B29/B27 METERS
040259,000851: # DRCON DELTA RCON DP B29/B27 METERS
040260,000852:
040261,000853: 32,2541 71220 PREC100 STQ DLOAD
040262,000854: 32,2542 03762 SPRTEX
040263,000855: 32,2543 33532 10RTE
040264,000856: 32,2544 17730 STODL NN1A
040265,000857: 32,2545 03636 RCON
040266,000858: 32,2546 03664 STORE RD
040267,000859: 32,2547 77745 PREC120 DLOAD
040268,000860: 32,2550 33542 2RTEB1
040269,000861: 32,2551 17650 STODL DT21PR # DT21PR = POSMAX
040270,000862: 32,2552 33530 M15RTE
040271,000863: 32,2553 37732 STCALL NN2
040272,000864: 32,2554 63726 RTENCK3
040273,000865: 32,2555 77624 PREC125 CALL
040274,000866: 32,2556 11637 PARAM
040275,000867: 32,2557 77745 DLOAD
040276,000868: 32,2560 02742 P
040277,000869: 32,2561 14033 STODL P/RPRE
040278,000870: 32,2562 02744 R1A
040279,000871: 32,2563 14035 STODL R/APRE
040280,000872: 32,2564 00041 R1
040281,000873: 32,2565 14031 STODL RPRE
040282,000874: 32,2566 03775 COGA
040283,000875: 32,2567 77661 SL
040284,000876: 32,2570 20206 5
040285,000877: 32,2571 03724 STORE X(T2)PRE
040286,000878: 32,2572 43276 DCOMP DAD
040287,000879: 32,2573 03726 X(T2)
040288,000880: 32,2574 45246 ABS DSU
040289,000881: 32,2575 33604 EPC4RTE
040290,000882: 32,2576 50000 BOV BMN
040291,000883: 32,2577 64601 PREC130
040292,000884: 32,2600 64770 PREC175
040293,000885:
040294,000886: # DESIRED REENTRY ANGLE NOT ACHIEVED
040295,000887:
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Page 909 |
040297,000889: 32,2601 50145 PREC130 DLOAD BMN
040298,000890: 32,2602 03732 NN2
040299,000891: 32,2603 64607 PREC140
040300,000892: 32,2604 52135 PREC132 SLOAD GOTO # TOO MANY ITERATIONS
040301,000893: 32,2605 33562 OCT605 # EXIT WITH ALARM
040302,000894: 32,2606 65073 PRECX
040303,000895:
040304,000896: # DETERMINE RADIUS AT WHICH THE DESIRED REENTRY ANGLE WILL BE ACHIEVED
040305,000897:
040306,000898: 32,2607 53145 PREC140 DLOAD BZE
040307,000899: 32,2610 03730 NN1A
040308,000900: 32,2611 64647 PREC162
040309,000901: 32,2612 62545 PREC150 DLOAD SL2 # B2
040310,000902: 32,2613 00033 P/RPRE
040311,000903: 32,2614 72405 DMP SL1 # BETA2=BETA1*P/R B2 PL02
040312,000904: 32,2615 03754 BETA1
040313,000905: 32,2616 71206 PUSH DLOAD
040314,000906: 32,2617 00035 R/APRE
040315,000907: 32,2620 41212 SL4 DMP
040316,000908: 32,2621 00001 00D
040317,000909: 32,2622 50021 BDSU BMN # BETA3=1-BETA2*R/A
040318,000910: 32,2623 33506 1RTEB4
040319,000911: 32,2624 64637 PREC160
040320,000912: 32,2625 75512 PREC155 SL2 SQRT
040321,000913: 32,2626 44205 DMP BDSU
040322,000914: 32,2627 03761 PHI2
040323,000915: 32,2630 33504 1RTEB3
040324,000916: 32,2631 65301 NORM PDDL
040325,000917: 32,2632 00047 X1
040326,000918: 32,2633 56342 SR1 DDV # BETA4=BETA2/(1-PHI2*SQRT(BETA3))
040327,000919: 32,2634 52057 SL* GOTO # B1
040328,000920: 32,2635 20200 0 -1,1
040329,000921: 32,2636 64655 PREC165
040330,000922: 32,2637 60345 PREC160 DLOAD NORM
040331,000923: 32,2640 00035 R/APRE
040332,000924: 32,2641 00047 X1
040333,000925: 32,2642 53665 BDDV SL* # B1
040334,000926: 32,2643 33500 1RTEB1
040335,000927: 32,2644 20173 0 -6,1
040336,000928: 32,2645 77650 GOTO
040337,000929: 32,2646 64655 PREC165
040338,000930: 32,2647 60345 PREC162 DLOAD NORM
040339,000931: 32,2650 00031 RPRE
040340,000932: 32,2651 00047 X1
040341,000933: 32,2652 53665 BDDV SL* # BETA4=RD/RPRE B1
040342,000934: 32,2653 03664 RD
040343,000935: 32,2654 20200 0 -1,1
040344,000936: 32,2655 41401 PREC165 SETPD PUSH
040345,000937: 32,2656 00001 0
040346,000938: 32,2657 57425 DSU DCOMP
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Page 910 |
040348,000940: 32,2660 33500 1RTEB1
040349,000941: 32,2661 03765 STORE BETA12
040350,000942: 32,2662 71240 BMN DLOAD
040351,000943: 32,2663 64674 PREC168
040352,000944: 32,2664 03724 X(T2)PRE
040353,000945: 32,2665 71240 BMN DLOAD
040354,000946: 32,2666 64672 PREC167
040355,000947: 32,2667 03765 BETA12
040356,000948: 32,2670 77676 DCOMP
040357,000949: 32,2671 03765 STORE BETA12
040358,000950: 32,2672 77745 PREC167 DLOAD
040359,000951: 32,2673 03765 BETA12
040360,000952: 32,2674 45246 PREC168 ABS DSU
040361,000953: 32,2675 33610 EPC6RTE
040362,000954: 32,2676 71240 BMN DLOAD
040363,000955: 32,2677 64770 PREC175
040364,000956: 32,2700 72405 DMP SL1
040365,000957: 32,2701 00031 RPRE
040366,000958: 32,2702 77606 PUSH # RF = NEW RADIUS
040367,000959: 32,2703 43345 PREC170 DLOAD DAD
040368,000960: 32,2704 03732 NN2
040369,000961: 32,2705 33522 1RTEB28
040370,000962: 32,2706 03732 STORE NN2
040371,000963: 32,2707 43175 VLOAD SET
040372,000964: 32,2710 03656 R(T2)/
040373,000965: 32,2711 03466 RVSW
040374,000966: 32,2712 26657 STOVL RVEC
040375,000967: 32,2713 03710 V(T2)/
040376,000968: 32,2714 77765 SIGN
040377,000969: 32,2715 03765 BETA12
040378,000970: 32,2716 16746 STODL VVEC
040379,000971: 32,2717 33500 1RTEB1
040380,000972: 32,2720 57565 SIGN DCOMP
040381,000973: 32,2721 03765 BETA12
040382,000974: 32,2722 71354 LXA,2 DLOAD
040383,000975: 32,2723 00154 MPAC
040384,000976: 32,2724 67140 LXC,1 SXA,2
040385,000977: 32,2725 03734 CONICX1
040386,000978: 32,2726 02756 SGNRDOT
040387,000979: 32,2727 36760 STCALL RDESIRED # COMPUTED DT12 (CORRECTION TO TIME OF
040388,000980: 32,2730 25556 TIMERAD # NEW RADIUS)
040389,000981: 32,2731 75345 DLOAD SIGN
040390,000982: 32,2732 00037 T
040391,000983: 32,2733 03765 BETA12
040392,000984: 32,2734 60325 PDDL NORM # DT21=(PHI4)DT21 PL02D
040393,000985: 32,2735 03650 DT21PR
040394,000986: 32,2736 00047 X1
040395,000987: 32,2737 53665 BDDV SL*
040396,000988: 32,2740 00001 00D
040397,000989: 32,2741 20176 0 -3,1
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Page 911 |
040399,000991: 32,2742 50006 PUSH BMN # BETA13=(DT21)/(DT21PR) R3 PL04D
040400,000992: 32,2743 64750 PREC172
040401,000993: 32,2744 65345 DLOAD PDDL # BETA14=1 B0 PL04D
040402,000994: 32,2745 33542 2RTEB1
040403,000995: 32,2746 77650 GOTO
040404,000996: 32,2747 64752 PREC173
040405,000997: 32,2750 65345 PREC172 DLOAD PDDL # BETA14=.6 B0 PL04D
040406,000998: 32,2751 33534 M.6RTE
040407,000999: 32,2752 45271 PREC173 DDV DSU
040408,001000: 32,2753 00003 02D
040409,001001: 32,2754 33504 1RTEB3
040410,001002: 32,2755 71240 BMN DLOAD
040411,001003: 32,2756 64762 PREC174
040412,001004: 32,2757 77605 DMP
040413,001005: 32,2760 03650 DT21PR
040414,001006: 32,2761 00001 STORE 00D # DT21=(BETA14)DT21PR B28
040415,001007: 32,2762 41545 PREC174 DLOAD PUSH
040416,001008: 32,2763 00001 00D
040417,001009: 32,2764 37650 STCALL DT21PR
040418,001010: 32,2765 63710 RTENCK2
040419,001011: 32,2766 77650 GOTO
040420,001012: 32,2767 64555 PREC125
040421,001013: 32,2770 45345 PREC175 DLOAD DSU
040422,001014: 32,2771 00031 RPRE
040423,001015: 32,2772 03664 RD
040424,001016: 32,2773 51406 PUSH ABS # RPRE-RD = RERR
040425,001017: 32,2774 50025 DSU BMN
040426,001018: 32,2775 33612 EPC7RTE
040427,001019: 32,2776 34703 PREC220
040428,001020:
040429,001021: # DESIRED RADIUS HAS NOT BEEN ACHIEVED
040430,001022:
040431,001023: 32,2777 53145 DLOAD BZE
040432,001024: 32,3000 03730 NN1A
040433,001025: 32,3001 64604 PREC132 # TOO MANY ITERATIONS
040434,001026: 32,3002 53025 DSU BZE
040435,001027: 32,3003 33532 10RTE
040436,001028: 32,3004 65037 PREC207
040437,001029: 32,3005 45345 PREC205 DLOAD DSU # NOT FIRST PASS OF ITERATION
040438,001030: 32,3006 03670 RPRE'
040439,001031: 32,3007 00031 RPRE # RPRE'-RPRE B29/B27
040440,001032: 32,3010 55301 NORM BDDV
040441,001033: 32,3011 00050 X2
040442,001034: 32,3012 03666 DRCON
040443,001035: 32,3013 41457 SL* PUSH # DRCON/(RPRE'-RPRE)=S B2
040444,001036: 32,3014 57600 0 -2,2
040445,001037: 32,3015 40015 DAD BOV # S GR +4 OR LS -4
040446,001038: 32,3016 33500 1RTEB1
040447,001039: 32,3017 65024 PREC205M
040448,001040: 32,3020 45246 ABS DSU
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Page 912 |
040450,001042: 32,3021 33500 1RTEB1
040451,001043: 32,3022 77640 BMN
040452,001044: 32,3023 65027 PREC206
040453,001045: 32,3024 57545 PREC205M DLOAD DCOMP # S GR 0 OR LS -4
040454,001046: 32,3025 33542 2RTEB1
040455,001047: 32,3026 77725 PDDL # S=-4 B2
040456,001048: 32,3027 41345 PREC206 DLOAD DMP
040457,001049: 32,3030 77712 SL2
040458,001050: 32,3031 03666 STORE DRCON # DRCON=S(RERR) B29
040459,001051: 32,3032 77615 DAD
040460,001052: 32,3033 03636 RCON
040461,001053: 32,3034 03636 STORE RCON # RCON+DRCON=RCON
040462,001054: 32,3035 77650 GOTO
040463,001055: 32,3036 65056 PREC210
040464,001056: 32,3037 63545 PREC207 DLOAD DSQ # FIRST PASS OF ITERATION
040465,001057: 32,3040 03664 RD
040466,001058: 32,3041 70501 NORM SR1
040467,001059: 32,3042 00047 X1
040468,001060: 32,3043 60325 PDDL NORM
040469,001061: 32,3044 00031 RPRE
040470,001062: 32,3045 00050 X2
040471,001063: 32,3046 55260 XSU,1 BDDV
040472,001064: 32,3047 00047 X2
040473,001065: 32,3050 77657 SR*
040474,001066: 32,3051 20600 0 -1,1
040475,001067: 32,3052 03636 STORE RCON # RD**2/RPRE=RCON
040476,001068: 32,3053 77625 DSU
040477,001069: 32,3054 03664 RD
040478,001070: 32,3055 03666 STORE DRCON # RCON-RD=DRCON
040479,001071: 32,3056 77745 PREC210 DLOAD # PREPARE FOR NEXT ITERATION
040480,001072: 32,3057 00031 RPRE
040481,001073: 32,3060 17670 STODL RPRE'
040482,001074: 32,3061 03730 NN1A
040483,001075: 32,3062 77625 DSU
040484,001076: 32,3063 33522 1RTEB28
040485,001077: 32,3064 37730 STCALL NN1A
040486,001078: 32,3065 65075 V2T100
040487,001079: 32,3066 52030 BHIZ GOTO
040488,001080: 32,3067 64547 PREC120
040489,001081: 32,3070 65073 PRECX
040490,001082:
040491,001083: # DESIRED RADIUS ACHIEVED
040492,001084:
040493,001085: 16,2000 SETLOC RTE2
040494,001086: 16,2000 BANK
040495,001087: 16,2703 45345 PREC220 DLOAD DSU
040496,001088: 16,2704 03726 X(T2)
040497,001089: 16,2705 03724 X(T2)PRE
040498,001090: 16,2706 45246 ABS DSU
040499,001091: 16,2707 34716 EPC8RTE
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Page 913 |
040501,001093: 16,2710 67240 BMN SLOAD
040502,001094: 16,2711 65071 PREC225
040503,001095: 16,2712 34720 OCT613
040504,001096: 16,2713 77650 GOTO
040505,001097: 16,2714 65073 PRECX # IF REENTRY ANGLE OUT OF LIMITS
040506,001098:
040507,001099: 16,2715 00040 30447 EPC8RTE 2DEC .002
040508,001100:
040509,001101: 16,2717 00613 OCT613 OCT 613
040510,001102:
040511,001103: # DESIRED FINAL ANGLE HAS BEEN REACHED.
040512,001104:
040513,001105: 32,2000 SETLOC RTE
040514,001106: 32,2000 BANK
040515,001107: 32,3071 77745 PREC225 DLOAD
040516,001108: 32,3072 33524 ZERORTE
040517,001109: 32,3073 77650 PRECX GOTO
040518,001110: 32,3074 03762 SPRTEX
040519,001111:
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Page 914 |
040521,001113: # INTEGRATION CALLING SUBROUTINE
040522,001114:
040523,001115: # DESCRIPTION
040524,001116: # PERFORMS CONIC AND PRECISION INTEGRATIONS USING SUBROUTINE INTEGRVS. THERE ARE THREE ENTRANCES (RTENCK1,
040525,001117: # RTENCK2, AND RTENCK3) FOR DIFFERENT SOURCES OF INPUT AND DIFFERENT OPTIONS. THERE IS A COMMON SET OF OUTPUT
040526,001118: # WHICH INCLUDES SET UP OF INPUT FOR THE PARAM SUBROUTINE.
040527,001119:
040528,001120: # RTENCK1 (CONIC INTEGRATION)
040529,001121:
040530,001122: # CALLING SEQUENCE
040531,001123: # L CALL
040532,001124: # L+1 RTENCK1
040533,001125:
040534,001126: # ERASABLE INITIALIZATION REQUIRED
040535,001127: # SAME AS FOR THE RTENCK3 ENTRANCE
040536,001128:
040537,001129: # RTENCK2 (PRECISION INTEGRATION)
040538,001130:
040539,001131: # CALLING SEQUENCE
040540,001132: # L CALL
040541,001133: # L+1 RTENCK2
040542,001134:
040543,001135: # ERASABLE INITIALIZATION REQUIRED
040544,001136: # PUSHLIST
040545,001137: # PUSHLOC-2 INTEGRATION TIME DT12 (CORRECTION TO T2) DP B28 CS
040546,001138: # OTHER
040547,001139: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
040548,001140: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
040549,001141: # T2 FINAL TIME DP B28 CS
040550,001142:
040551,001143: # RTENCK3 (PRECISION INTEGRATION)
040552,001144:
040553,001145: # CALLING SEQUENCE
040554,001146: # L CALL
040555,001147: # L+1 RTENCK3
040556,001148:
040557,001149: # ERASABLE INITIALIZATION REQUIRED
040558,001150: # R(T1)/ INITIAL POSITION VECTOR VECTOR B29 METERS
040559,001151: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 M/CS
040560,001152: # T1 INITIAL VECTOR TIME DP B28 CS
040561,001153: # T2 FINAL TIME DP B28 CS
040562,001154:
040563,001155: # EXIT MODE
040564,001156: # AT L+2 OF CALLING SEQUENCE
040565,001157:
040566,001158: # SUBROUTINES CALLED
040567,001159: # INTSTALL
040568,001160: # INTEGRVS
040569,001161:
040570,001162: # OUTPUT
040571,001163: # PUSHLIST
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Page 915 |
040573,001165: # PUSHLOC-6 FINAL POSITION VECTOR R(T2)/ VECTOR B29 METERS
040574,001166: # X1 CONICS MUTABLE ENTRY FOR EARTH (-2) SP B14
040575,001167: # MPAC
040576,001168: # FINAL VELOCITY VECTOR V(T2)/ VECTOR B7 M/CS
040577,001169: # OTHER
040578,001170: # R(T2)/ AS IN PUSHLIST
040579,001171: # V(T2)/ AS IN MPAC
040580,001172: # T2 FINAL TIME DP B28 CS
040581,001173:
040582,001174: 31,2000 SETLOC RTE3
040583,001175: 31,2000 BANK
040584,001176: 31,3700 45020 RTENCK1 STQ CALL
040585,001177: 31,3701 03733 RTENCKEX
040586,001178: 31,3702 27442 INTSTALL
040587,001179: 31,3703 43175 VLOAD SET
040588,001180: 31,3704 03640 R(T1)/
040589,001181: 31,3705 01473 INTYPFLG
040590,001182: 31,3706 77650 GOTO
040591,001183: 31,3707 63734 RTENCK3B
040592,001184:
040593,001185: 31,3710 45020 RTENCK2 STQ CALL
040594,001186: 31,3711 03733 RTENCKEX
040595,001187: 31,3712 27442 INTSTALL
040596,001188: 31,3713 77214 CLEAR VLOAD
040597,001189: 31,3714 01673 INTYPFLG
040598,001190: 31,3715 03656 R(T2)/
040599,001191: 31,3716 25535 STOVL RCV
040600,001192: 31,3717 03710 V(T2)/
040601,001193: 31,3720 15543 STODL VCV
040602,001194: 31,3721 03736 T2
040603,001195: 31,3722 01517 STORE TET
040604,001196: 31,3723 77615 DAD
040605,001197: 31,3724 77650 GOTO
040606,001198: 31,3725 63742 RTENCK3D
040607,001199:
040608,001200: 31,3726 45020 RTENCK3 STQ CALL
040609,001201: 31,3727 03733 RTENCKEX
040610,001202: 31,3730 27442 INTSTALL
040611,001203: 31,3731 43175 RTENCK3A VLOAD CLEAR
040612,001204: 31,3732 03640 R(T1)/
040613,001205: 31,3733 01673 INTYPFLG
040614,001206: 31,3734 25535 RTENCK3B STOVL RCV
040615,001207: 31,3735 03700 V2(T1)/
040616,001208: 31,3736 15543 STODL VCV
040617,001209: 31,3737 03716 T1
040618,001210: 31,3740 15517 STODL TET
040619,001211: 31,3741 03736 T2
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Page 916 |
040621,001213: 31,3742 00041 RTENCK3D STORE TDEC1
040622,001214: 31,3743 45014 CLEAR CALL
040623,001215: 31,3744 00263 MOONFLAG
040624,001216: 31,3745 27135 INTEGRVS
040625,001217: 31,3746 77775 VLOAD
040626,001218: 31,3747 00001 RATT
040627,001219: 31,3750 03656 STORE R(T2)/
040628,001220: 31,3751 70125 PDDL LXC,1
040629,001221: 31,3752 00015 TAT
040630,001222: 31,3753 03734 CONICX1
040631,001223: 31,3754 27736 STOVL T2
040632,001224: 31,3755 00007 VATT
040633,001225: 31,3756 03710 STORE V(T2)/
040634,001226: 31,3757 77650 GOTO
040635,001227: 31,3760 03733 RTENCKEX
040636,001228: 32,2000 SETLOC RTE
040637,001229: 32,2000 BANK
040638,001230:
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Page 917 |
040640,001232: # V2(T1) COMPUTATION SUBROUTINE
040641,001233:
040642,001234: # DESCRIPTION
040643,001235: # A POST IMPULSE VELOCITY VECTOR (V2(T1)) IS COMPUTED WHICH EITHER
040644,001236: # (1) MEETS THE INPUT VELOCITY CHANGE DESIRED (RTEDVD) IN A MINIMUM TIME OR
040645,001237: # (2) IF A VELOCITY CHANGE ISN'T SPECIFIED (RTEDVD = 0), A V2(T1) IS COMPUTED WHICH MINIMIZES THE IMPULSE (DV)
040646,001238: # AND CONSEQUENTLY FUEL.
040647,001239:
040648,001240: # CALLING SEQUENCE
040649,001241: # L CALL
040650,001242: # L+1 V2T100
040651,001243:
040652,001244: # NORMAL EXIT MODE
040653,001245: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040654,001246:
040655,001247: # ALARM EXIT MODE
040656,001248: # AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS.
040657,001249:
040658,001250: # SUBROUTINES CALLED
040659,001251: # GAMDV10
040660,001252: # XT1LIM
040661,001253: # DVCALC
040662,001254:
040663,001255: # ERASABLE INITIALIZATION REQUIRED
040664,001256: # PUSHLIST
040665,001257: # NONE
040666,001258: # MPAC
040667,001259: # NONE
040668,001260: # OTHER
040669,001261: # R(T1) MAGNITUDE OF INITIAL POSITION VECTOR DP B29/B27 METERS
040670,001262: # RCON MAGNITUDE OF FINAL POSITION VECTOR DP B29/B27 METERS
040671,001263: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040672,001264: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
040673,001265: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040674,001266: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040675,001267: # X(T2) COTANGENT OF FINAL FLIGHT PATH ANGLE DP B0
040676,001268: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (INPUT FOR PREC) DP B5
040677,001269: # CFPA COSINE OF INITIAL FLIGHT PATH ANGLE DP B1
040678,001270: # MAMAX1 MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
040679,001271: # MAMAX2 MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
040680,001272: # PHI2 REENTRY NEAR PERIGEE OR APOGEE INDICATE (RTE ONLY) DP B2 -1 PERIGEE, +1 APOGEE
040681,001273: # N1 CONIC OR PRECISION ITERATION OPERATOR DP B28 NEGATIVE CONIC, PLUS PREC
040682,001274:
040683,001275: # OUTPUT
040684,001276: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040685,001277: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040686,001278: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (POST IMPULSE) DP B5
040687,001279: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040688,001280: # BETA1 1+X(T2)**2 DP B1
040689,001281:
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Page 918 |
040691,001283:
040692,001284: # DEBRIS
040693,001285: # PUSHLIST
040694,001286: # 00D X(T1),,=PREVIOUS PRECISION X(T1) DP B5
040695,001287: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040696,001288: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040697,001289: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040698,001290: # 10D X(T1)MIN=LOWER BOUND ON X(T1) IN GAMDV ITERATOR DP B5
040699,001291: # 12D DX(T1)MAX=MAXIMUM DELTA X(T1) DP B5
040700,001292: # 14D X(T1)MAX=UPPER BOUND ON X(T1) IN GAMDV ITERATOR DP B5
040701,001293: # 16D DX(T1)=ITERATOR INCREMENT DP B5
040702,001294: # 31D GAMDV10 SUBROUTINE RETURN ADDRESS
040703,001295: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040704,001296: # 33D V2T100 SUBROUTINE RETURN ADDRESS
040705,001297:
040706,001298: 32,3075 71220 V2T100 STQ DLOAD
040707,001299: 32,3076 00041 33D
040708,001300: 32,3077 03636 RCON
040709,001301: 32,3100 45240 BMN DSU # ABORT IF RCON NEGATIVE
040710,001302: 32,3101 65105 V2TERROR
040711,001303: 32,3102 03646 R(T1)
040712,001304: 32,3103 77640 BMN
040713,001305: 32,3104 65110 V2T101
040714,001306: 32,3105 77776 V2TERROR EXIT # OR IF LAMBDA LESS THAN ONE
040715,001307: 32,3106 05721 TC P00DOO # NO SOLUTION IF LAMBDA LESS THAN 1
040716,001308: 32,3107 00610 OCT 00610
040717,001309: 32,3110 43001 V2T101 SETPD CLEAR
040718,001310: 32,3111 00001 0 # PL00D
040719,001311: 32,3112 00272 F2RTE
040720,001312: 32,3113 60345 DLOAD NORM
040721,001313: 32,3114 03636 RCON
040722,001314: 32,3115 00047 X1
040723,001315: 32,3116 60325 PDDL NORM
040724,001316: 32,3117 03646 R(T1)
040725,001317: 32,3120 00051 S1
040726,001318: 32,3121 00013 STORE 10D
040727,001319: 32,3122 56342 SR1 DDV # R1/RCON = LAMBDA B1
040728,001320: 32,3123 65260 XSU,1 PDDL # PL02D
040729,001321: 32,3124 00050 S1
040730,001322: 32,3125 03726 X(T2)
040731,001323: 32,3126 77716 DSQ
040732,001324: 32,3127 43342 SR1 DAD
040733,001325: 32,3130 33500 1RTEB1
040734,001326: 32,3131 03754 STORE BETA1 # 1+X(T2)**2 = BETA1 B1
040735,001327: 32,3132 77605 DMP
040736,001328: 32,3133 00001 00D
040737,001329: 32,3134 00035 STORE 28D # BETAI*LAMBDA = BETA5
040738,001330: 32,3135 53605 DMP SL*
040739,001331: 32,3136 00001 00D
040740,001332: 32,3137 20172 0 -7,1
040741,001333: 32,3140 45257 SL* DSU
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Page 919 |
040743,001335: 32,3141 20172 0 -7,1
040744,001336: 32,3142 33516 1RTEB17
040745,001337: 32,3143 65234 RTB PDDL # BETA5*LAMBDA-1 = THETA1 B17 PL05D
040746,001338: 32,3144 45565 TPMODE
040747,001339: 32,3145 33500 1RTEB1
040748,001340: 32,3146 57457 SR* DCOMP
040749,001341: 32,3147 20601 0,1
040750,001342: 32,3150 41215 DAD DMP
040751,001343: 32,3151 00001 00D
040752,001344: 32,3152 03646 R(T1)
040753,001345: 32,3153 47057 SL* RTB
040754,001346: 32,3154 20172 0 -7D,1
040755,001347: 32,3155 45565 TPMODE
040756,001348: 32,3156 77725 PDDL # 2*R(T1)*(LAMBDA-1)=THETA2 B38/B36 PL08D
040757,001349: 32,3157 33632 RTMURTE
040758,001350: 32,3160 70501 NORM SR1
040759,001351: 32,3161 00050 X2
040760,001352: 32,3162 56264 XSU,2 DDV
040761,001353: 32,3163 00050 S1
040762,001354: 32,3164 00013 10D
040763,001355: 32,3165 65257 SR* PDDL # MU**.5/R(T1)=THETA3 B-4/B-5 PL10D
040764,001356: 32,3166 57170 6,2
040765,001357: 32,3167 03652 MAMAX1
040766,001358: 32,3170 41406 PUSH PUSH # MAMAX1=MA
040767,001359: 32,3171 77624 CALL
040768,001360: 32,3172 65734 XT1LIM
040769,001361: 32,3173 41476 DCOMP PUSH # X(T1)MIN B5 PL12D
040770,001362: 32,3174 40476 DCOMP SR4
040771,001363: 32,3175 41525 PDDL PUSH # DX(T1)MAX B5 PL14D
040772,001364: 32,3176 03654 MAMAX2
040773,001365: 32,3177 45006 PUSH CALL
040774,001366: 32,3200 65734 XT1LIM
040775,001367: 32,3201 50125 PDDL BMN # X(T1)MAX B5 PL16D
040776,001368: 32,3202 03730 NN1A
040777,001369: 32,3203 65206 V2T102
040778,001370: 32,3204 77650 GOTO
040779,001371: 32,3205 65220 V2T110
040780,001372:
040781,001373: # PROCEED HERE IF NOT PRECISION COMPUTATION
040782,001374:
040783,001375: 32,3206 77745 V2T102 DLOAD
040784,001376: 32,3207 03632 RTEDVD
040785,001377: 32,3210 52054 BZE GOTO
040786,001378: 32,3211 65213 V2T105
040787,001379: 32,3212 65314 V2T140
040788,001380: 32,3213 50145 V2T105 DLOAD BMN
040789,001381: 32,3214 03757 CFPA
040790,001382: 32,3215 65314 V2T140
040791,001383: 32,3216 77650 GOTO
040792,001384: 32,3217 65322 V2T145
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Page 920 |
040794,001386: # DURING A PRECISION TRAJECTORY ITERATION CONSTRAIN THE INDEPENDENT
040795,001387: # VARIABLE TO INSURE THAT ALL CONICS PASS THROUGH RCON ON THE SAME PASS
040796,001388: # THROUGH X(T2)
040797,001389:
040798,001390: 32,3220 47145 V2T110 DLOAD RTB
040799,001391: 32,3221 33516 1RTEB17
040800,001392: 32,3222 45565 TPMODE
040801,001393: 32,3223 65276 DCOMP PDDL # -1 B17 PL19D
040802,001394: 32,3224 33542 2RTEB1
040803,001395: 32,3225 45257 SR* DSU
040804,001396: 32,3226 20601 0,1
040805,001397: 32,3227 00001 00D
040806,001398: 32,3230 53605 DMP SL*
040807,001399: 32,3231 00035 28D
040808,001400: 32,3232 20172 0 -7,1
040809,001401: 32,3233 76257 SL* TAD
040810,001402: 32,3234 20172 0 -7,1
040811,001403: 32,3235 65234 RTB PDDL # BETA5(2-LAMBDA)-1=BETA6 B17 PL19D
040812,001404: 32,3236 45565 TPMODE
040813,001405: 32,3237 03722 X(T1)
040814,001406: 32,3240 00001 STORE 00D # X(T1),, B5
040815,001407: 32,3241 77751 TLOAD # PL16D
040816,001408: 32,3242 53040 BMN BZE
040817,001409: 32,3243 65250 V2T115
040818,001410: 32,3244 65250 V2T115
040819,001411: 32,3245 52061 SL GOTO
040820,001412: 32,3246 20210 7
040821,001413: 32,3247 65261 V2T120
040822,001414: 32,3250 50145 V2T115 DLOAD BMN
040823,001415: 32,3251 03761 PHI2
040824,001416: 32,3252 65272 V2T125
040825,001417: 32,3253 77676 DCOMP
040826,001418: 32,3254 17761 STODL PHI2
040827,001419: 32,3255 33532 10RTE
040828,001420: 32,3256 03730 STORE NN1A
040829,001421: 32,3257 77650 GOTO
040830,001422: 32,3260 65272 V2T125
040831,001423: 32,3261 47166 V2T120 SQRT RTB
040832,001424: 32,3262 45716 DPMODE
040833,001425: 32,3263 50125 PDDL BMN # BETA6**.5=X(T1)LIM B5 PL18D
040834,001426: 32,3264 03761 PHI2
040835,001427: 32,3265 65300 V2T130
040836,001428: 32,3266 45545 DLOAD STADR
040837,001429: 32,3267 77760 STORE 14D # X(T1)LIM = X(T1)MAX
040838,001430: 32,3270 77676 DCOMP
040839,001431: 32,3271 00013 STORE 10D # -X(T1)LIM = X(T1)MIN
040840,001432: 32,3272 53145 V2T125 DLOAD BZE
040841,001433: 32,3273 03722 X(T1)
040842,001434: 32,3274 65314 V2T140
040843,001435: 32,3275 52040 BMN GOTO
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Page 921 |
040845,001437: 32,3276 65314 V2T140
040846,001438: 32,3277 65322 V2T145
040847,001439: 32,3300 53145 V2T130 DLOAD BZE
040848,001440: 32,3301 03722 X(T1)
040849,001441: 32,3302 65311 V2T135
040850,001442: 32,3303 71240 BMN DLOAD # PL16D
040851,001443: 32,3304 65311 V2T135
040852,001444: 32,3305 77626 STADR
040853,001445: 32,3306 77764 STORE 10D # X(T1)LIM = X(T1)MIN
040854,001446: 32,3307 77650 GOTO
040855,001447: 32,3310 65322 V2T145
040856,001448: 32,3311 57545 V2T135 DLOAD DCOMP # PL16D
040857,001449: 32,3312 77626 STADR
040858,001450: 32,3313 77760 STORE 14D # -X(T1)LIM = X(T1)MAX
040859,001451: 32,3314 77745 V2T140 DLOAD
040860,001452: 32,3315 00013 10D
040861,001453: 32,3316 17722 STODL X(T1) # X(T1)MIN = X(T1)
040862,001454: 32,3317 00015 12D
040863,001455: 32,3320 52006 PUSH GOTO # DX(T1)MAX = DX(T1) PL18D
040864,001456: 32,3321 65327 V2T150
040865,001457: 32,3322 77745 V2T145 DLOAD
040866,001458: 32,3323 00017 14D
040867,001459: 32,3324 17722 STODL X(T1) # X(T1)MAX = X(T1)
040868,001460: 32,3325 00015 12D
040869,001461: 32,3326 41476 DCOMP PUSH # -DX(T1)MAX = DX(T1) PL18D
040870,001462: 32,3327 77624 V2T150 CALL # GOTO X(T1)-DV ITERATOR
040871,001463: 32,3330 65457 GAMDV10
040872,001464: 32,3331 53145 DLOAD BZE # EXIT IF MINIMUM FUEL MODE
040873,001465: 32,3332 03632 RTEDVD
040874,001466: 32,3333 65455 V2T1X
040875,001467:
040876,001468: # CONTINUE IF TIME CRITICAL MODE
040877,001469:
040878,001470: 32,3334 50025 DSU BMN
040879,001471: 32,3335 03706 DV
040880,001472: 32,3336 65341 V2T155
040881,001473: 32,3337 77650 GOTO
040882,001474: 32,3340 65374 V2T175
040883,001475: 32,3341 50145 V2T155 DLOAD BMN
040884,001476: 32,3342 03730 NN1A
040885,001477: 32,3343 65346 V2T160
040886,001478: 32,3344 77650 GOTO
040887,001479: 32,3345 65416 V2T185
040888,001480:
040889,001481: # CONIC TRAJECTORY COMPUTATION
040890,001482:
040891,001483: 32,3346 53145 V2T160 DLOAD BZE
040892,001484: 32,3347 03722 X(T1)
040893,001485: 32,3350 65354 V2T165
040894,001486: 32,3351 52040 BMN GOTO
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Page 922 |
040896,001488: 32,3352 65354 V2T165
040897,001489: 32,3353 65453 V2T300
040898,001490: 32,3354 53145 V2T165 DLOAD BZE
040899,001491: 32,3355 03757 CFPA
040900,001492: 32,3356 65453 V2T300
040901,001493: 32,3357 71240 BMN DLOAD
040902,001494: 32,3360 65453 V2T300
040903,001495: 32,3361 00017 14D
040904,001496: 32,3362 17722 STODL X(T1) # X(T1)MAX=X(T1)
040905,001497: 32,3363 00015 12D
040906,001498: 32,3364 77676 DCOMP
040907,001499: 32,3365 34021 STCALL 16D # -DX(T1)MAX=DX(T1)
040908,001500: 32,3366 65457 GAMDV10
040909,001501: 32,3367 45345 DLOAD DSU
040910,001502: 32,3370 03632 RTEDVD
040911,001503: 32,3371 03706 DV
040912,001504: 32,3372 77640 BMN
040913,001505: 32,3373 65453 V2T300
040914,001506: 32,3374 71214 V2T175 SET DLOAD
040915,001507: 32,3375 00072 F2RTE
040916,001508: 32,3376 03722 X(T1)
040917,001509: 32,3377 77614 BOFF
040918,001510: 32,3400 02742 SLOWFLG
040919,001511: 32,3401 65406 V2T177
040920,001512: 32,3402 14013 STODL 10D # X(T1)MIN
040921,001513: 32,3403 00015 12D # DX(T1)MAX
040922,001514: 32,3404 77650 GOTO
040923,001515: 32,3405 65411 V2T179
040924,001516: 32,3406 14017 V2T177 STODL 14D
040925,001517: 32,3407 00015 12D
040926,001518: 32,3410 77676 DCOMP
040927,001519: 32,3411 34021 V2T179 STCALL 16D # DX(T1)
040928,001520: 32,3412 65457 GAMDV10
040929,001521: 32,3413 50145 DLOAD BMN
040930,001522: 32,3414 03730 NN1A
040931,001523: 32,3415 65453 V2T300
040932,001524:
040933,001525: # PREVENT A LARGE CHANGE IN INDEPENDENT VARIABLE DURING AN ITERATION FOR A
040934,001526: # PRECISION TRAJECTORY
040935,001527:
040936,001528: 32,3416 45345 V2T185 DLOAD DSU
040937,001529: 32,3417 03722 X(T1)
040938,001530: 32,3420 00001 00D
040939,001531: 32,3421 65246 ABS PDDL # /X(T1)-X(T1),,/ = BETA7
040940,001532: 32,3422 00015 12D
040941,001533: 32,3423 44352 SL1 BDSU
040942,001534: 32,3424 71240 BMN DLOAD
040943,001535: 32,3425 65453 V2T300
040944,001536: 32,3426 00001 00D # CONTINUE IF BETA7 LARGER THAN 2DX(T1)MAX
040945,001537: 32,3427 03722 STORE X(T1) # X(T1),, = X(T1)
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Page 923 |
040947,001539: 32,3430 50025 DSU BMN
040948,001540: 32,3431 00017 14D
040949,001541: 32,3432 65440 V2T195
040950,001542: 32,3433 77745 DLOAD
040951,001543: 32,3434 00017 14D
040952,001544: 32,3435 03722 STORE X(T1) # X(T1)MAX = X(T1)
040953,001545: 32,3436 77650 GOTO
040954,001546: 32,3437 65451 V2T205
040955,001547: 32,3440 45345 V2T195 DLOAD DSU
040956,001548: 32,3441 03722 X(T1)
040957,001549: 32,3442 00013 10D
040958,001550: 32,3443 52040 BMN GOTO
040959,001551: 32,3444 65446 V2T200
040960,001552: 32,3445 65451 V2T205
040961,001553: 32,3446 77745 V2T200 DLOAD
040962,001554: 32,3447 00013 10D
040963,001555: 32,3450 03722 STORE X(T1) # X(T1)MIN = X(T1)
040964,001556: 32,3451 77624 V2T205 CALL
040965,001557: 32,3452 65660 DVCALC
040966,001558: 32,3453 77745 V2T300 DLOAD
040967,001559: 32,3454 33524 ZERORTE
040968,001560: 32,3455 77650 V2T1X GOTO
040969,001561: 32,3456 00041 33D
040970,001562:
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Page 924 |
040972,001564: # X(T1)-DV ITERATOR SUBROUTINE
040973,001565:
040974,001566: # DESCRIPTION
040975,001567: # COMPUTES A POST IMPULSE VELOCITY VECTOR (V2(T1)) WHICH REQUIRES A MINIMUM DV.
040976,001568:
040977,001569: # CALLING SEQUENCE
040978,001570: # L CALL
040979,001571: # L+1 GAMDV10
040980,001572:
040981,001573: # NORMAL EXIT MODE
040982,001574: # AT L+2 OF CALLING SEQUENCE
040983,001575:
040984,001576: # ALARM EXIT MODE
040985,001577: # AT V2T1X WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS
040986,001578:
040987,001579: # SUBROUTINES CALLED
040988,001580: # DVCALC
040989,001581:
040990,001582: # ERASABLE INITIALIZATION REQUIRED
040991,001583: # PUSHLIST
040992,001584: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040993,001585: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040994,001586: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040995,001587: # 10D X(T1)MIN=LOWER BOUND ON INDEPENDENT VARIABLE X(T1) DP B5
040996,001588: # 12D DX(T1)MAX=MAXIMUM DX(T1) DP B5
040997,001589: # 14D X(T1)MAX=UPPER BOUND ON INDEPENDENT VARIABLE X(T1) DP B5
040998,001590: # 16D DX(T1)=ITERATOR INCREMENT DP B5
040999,001591: # MPAC
041000,001592: # NONE
041001,001593: # OTHER
041002,001594: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
041003,001595: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
041004,001596: # UR1/ UNIT INITIAL VECTOR VECTOR B1
041005,001597: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
041006,001598: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (FROM VERTICAL) DP B5
041007,001599: # F2RTE TIME CRITICAL OR MINIMUM FUEL MODE INDICATOR STATE AREA 0 MIN. FUEL, 1 MIN. TIME
041008,001600:
041009,001601: # OUTPUT
041010,001602: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
041011,001603: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
041012,001604: # X(T1) COTANGENT OF INITIAL FPA MEASURED FROM VERTICAL DP B5
041013,001605: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
041014,001606:
041015,001607: # DEBRIS
041016,001608: # PUSHLIST
041017,001609: # 00D X(T1),,
041018,001610: # 02D THETA1
041019,001611: # 05D THETA2
041020,001612: # 08D THETA3
041021,001613: # 10D X(T1)MIN
041022,001614: # 12D DX(T1)MAX
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Page 925 |
041024,001616: # 14D X(T1)MAX
041025,001617: # 16D DX(T1)
041026,001618: # 22D DV,=PREVIOUS DV DP B7/B5
041027,001619: # 24D BETA9=X(T1)+1.1DX(T1) DP B5
041028,001620: # 31D GAMDV10 SUBROUTINE RETURN ADDRESS
041029,001621: # 32D DVCALC SUBROUTINE RETURN ADDRESS
041030,001622: # 33D V2T100 SUBROUTINE RETURN ADDRESS
041031,001623:
041032,001624: 32,3457 77620 GAMDV10 STQ
041033,001625: 32,3460 00037 31D
041034,001626: 32,3461 45001 SETPD CALL
041035,001627: 32,3462 00023 18D # PL18D
041036,001628: 32,3463 65660 DVCALC
041037,001629: 32,3464 45345 DLOAD DSU
041038,001630: 32,3465 00017 14D
041039,001631: 32,3466 00013 10D
041040,001632: 32,3467 77600 BOV
041041,001633: 32,3470 65510 GAMDV20
041042,001634: 32,3471 45206 PUSH DSU # X(T1)MAX-X(T1)MIN=BETA8 B5 PL20D
041043,001635: 32,3472 33614 EPC9RTE
041044,001636: 32,3473 71240 BMN DLOAD
041045,001637: 32,3474 65656 GAMDVX # BOUNDS CLOSE TOGETHER
041046,001638: 32,3475 00023 18D
041047,001639: 32,3476 50025 DSU BMN # BETA8-DX(T1)MAX
041048,001640: 32,3477 00015 12D
041049,001641: 32,3500 65504 GAMDV15
041050,001642: 32,3501 52001 SETPD GOTO # PL18D
041051,001643: 32,3502 00023 18D
041052,001644: 32,3503 65510 GAMDV20
041053,001645: 32,3504 77745 GAMDV15 DLOAD # PL18D
041054,001646: 32,3505 70565 SIGN SR1
041055,001647: 32,3506 00021 16D
041056,001648: 32,3507 00021 STORE 16D # BETA8(SIGNDX(T1))/2=DX(T1)
041057,001649: 32,3510 77745 GAMDV20 DLOAD
041058,001650: 32,3511 33526 M144RTE
041059,001651: 32,3512 03732 STORE NN2
041060,001652: 32,3513 43345 GAMDV25 DLOAD DAD
041061,001653: 32,3514 03732 NN2
041062,001654: 32,3515 33522 1RTEB28
041063,001655: 32,3516 67240 BMN SLOAD
041064,001656: 32,3517 65523 GAMDV30
041065,001657: 32,3520 33562 OCT605
041066,001658: 32,3521 77650 GOTO
041067,001659: 32,3522 65455 V2T1X
041068,001660: 32,3523 03732 GAMDV30 STORE NN2 # NN2=NN2+1
041069,001661: 32,3524 65345 DLOAD PDDL # X(T1)=X(T1), B5 PL20D
041070,001662: 32,3525 03722 X(T1)
041071,001663: 32,3526 03706 DV
041072,001664: 32,3527 43325 PDDL DAD # DV=DV, B7/B5 PL22D
041073,001665: 32,3530 03722 X(T1)
041074,001666: 32,3531 00021 16D
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Page 926 |
041076,001668: 32,3532 37722 STCALL X(T1) # X(T1)+DX(T1)=X(T1) B5
041077,001669: 32,3533 65660 DVCALC
041078,001670: 32,3534 71214 BON DLOAD
041079,001671: 32,3535 00312 F2RTE
041080,001672: 32,3536 65552 GAMDV35
041081,001673: 32,3537 03706 DV
041082,001674: 32,3540 50025 DSU BMN # CONTINUE IF FUEL CRITICAL MODE
041083,001675: 32,3541 00025 20D
041084,001676: 32,3542 65547 GAMDV33
041085,001677: 32,3543 57545 GAMDV32 DLOAD DCOMP
041086,001678: 32,3544 00021 16D
041087,001679: 32,3545 77742 SR1
041088,001680: 32,3546 00021 STORE 16D
041089,001681: 32,3547 52001 GAMDV33 SETPD GOTO
041090,001682: 32,3550 00023 18D # PL18D
041091,001683: 32,3551 65615 GAMDV50
041092,001684:
041093,001685: # TIME CRITICAL MODE
041094,001686:
041095,001687: 32,3552 45345 GAMDV35 DLOAD DSU
041096,001688: 32,3553 03632 RTEDVD
041097,001689: 32,3554 03706 DV
041098,001690: 32,3555 41525 PDDL PUSH # DVD-DV=DVERR B7/B5 PL22D
041099,001691: 32,3556 51545 GAMDV40 DLOAD ABS # DV, PL24D
041100,001692: 32,3557 00025 20D
041101,001693: 32,3560 50025 DSU BMN
041102,001694: 32,3561 33616 EPC10RTE
041103,001695: 32,3562 65656 GAMDVX
041104,001696: 32,3563 71204 GAMDV45 BOVB DLOAD
041105,001697: 32,3564 57352 TCDANZIG # ASSURE OVFIND IS 0
041106,001698: 32,3565 60221 BDSU NORM
041107,001699: 32,3566 03706 DV
041108,001700: 32,3567 00050 X2
041109,001701: 32,3570 77725 PDDL # DV-DV, B7/B5-N2 PL22D
041110,001702: 32,3571 70501 NORM SR1 # DVERR B8/B6-N1
041111,001703: 32,3572 00047 X1
041112,001704: 32,3573 65271 DDV PDDL # DVERR/ DV - DV
041113,001705: 32,3574 41221 BDSU DMP # PL18D
041114,001706: 32,3575 03722 X(T1)
041115,001707: 32,3576 77660 XSU,1
041116,001708: 32,3577 00047 X2
041117,001709: 32,3600 00021 STORE 16D # PRESERVE SIGN IF OVERFLOW
041118,001710: 32,3601 40057 SR* BOV
041119,001711: 32,3602 20600 0 -1,1
041120,001712: 32,3603 65611 GAMDV47
041121,001713: 32,3604 00021 STORE 16D # (X(T1)-X(T1),)DVERR/(DV-DV,)=DX(T1)
041122,001714: 32,3605 45246 ABS DSU
041123,001715: 32,3606 00015 12D
041124,001716: 32,3607 77640 BMN
041125,001717: 32,3610 65615 GAMDV50
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Page 927 |
041127,001719: 32,3611 75345 GAMDV47 DLOAD SIGN
041128,001720: 32,3612 00015 12D
041129,001721: 32,3613 00021 16D
041130,001722: 32,3614 00021 STORE 16D # DX(T1)MAX(SIGNDX(T1))=DX(T1)
041131,001723:
041132,001724: # CHECK TO KEEP INDEPENDENT VARIABLE IN BOUNDS
041133,001725:
041134,001726: 32,3615 41345 GAMDV50 DLOAD DMP
041135,001727: 32,3616 00021 16D
041136,001728: 32,3617 33536 1.1RTEB1
041137,001729: 32,3620 43352 SL1 DAD
041138,001730: 32,3621 03722 X(T1)
041139,001731: 32,3622 00031 STORE 24D # X(T1)+1.1DX(T1)=BETA9 B5
041140,001732: 32,3623 50025 DSU BMN
041141,001733: 32,3624 00017 14D
041142,001734: 32,3625 65634 GAMDV55
041143,001735: 32,3626 45345 DLOAD DSU
041144,001736: 32,3627 00017 14D
041145,001737: 32,3630 03722 X(T1)
041146,001738: 32,3631 77742 SR1
041147,001739: 32,3632 34021 STCALL 16D # (X(T1)MAX-X(T1))/2=DX(T1) B5
041148,001740: 32,3633 65647 GAMDV65
041149,001741: 32,3634 45345 GAMDV55 DLOAD DSU
041150,001742: 32,3635 00031 24D
041151,001743: 32,3636 00013 10D
041152,001744: 32,3637 52040 BMN GOTO
041153,001745: 32,3640 65642 GAMDV60
041154,001746: 32,3641 65647 GAMDV65
041155,001747: 32,3642 45345 GAMDV60 DLOAD DSU
041156,001748: 32,3643 00013 10D
041157,001749: 32,3644 03722 X(T1)
041158,001750: 32,3645 77742 SR1
041159,001751: 32,3646 00021 STORE 16D # (X(T1)MIN-X(T1))/2=DX(T1) B5
041160,001752: 32,3647 51545 GAMDV65 DLOAD ABS
041161,001753: 32,3650 00021 16D
041162,001754: 32,3651 50025 DSU BMN
041163,001755: 32,3652 33614 EPC9RTE
041164,001756: 32,3653 65656 GAMDVX
041165,001757: 32,3654 77650 GOTO
041166,001758: 32,3655 65513 GAMDV25
041167,001759: 32,3656 77650 GAMDVX GOTO
041168,001760: 32,3657 00037 31D
041169,001761:
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Page 928 |
041171,001763: # DV CALCULATION SUBROUTINE
041172,001764:
041173,001765: # INPUT
041174,001766: # PUSHLIST
041175,001767: # 02D THETA1=BETA5*LAMBDA-1 TP B17
041176,001768: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
041177,001769: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
041178,001770: # OTHER
041179,001771: # X(T1) COTANGENT OF POST IMPULSE INITIAL FLIGHT PATH ANGLE DP B5
041180,001772: # V(T1)/ INITIAL VELOCITY VECTOR (PRE IMPULSE) VECTOR B7/B5 METERS/CS
041181,001773: # UR1/ UNIT INITIAL VECTOR VECTOR B1
041182,001774: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
041183,001775:
041184,001776: # OUTPUT
041185,001777: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
041186,001778: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
041187,001779: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
041188,001780:
041189,001781: # DEBRIS
041190,001782: # 28D THETA3*PCON**.5 DP B10/B8-N1
041191,001783: # C(PUSHLOC) THETA3(PCON**.5)*X(T1)*UR1/ VECTOR B7/B5
041192,001784: # 32D DVCALC SUBROUTINE RETURN ADDRESS
041193,001785: # X1 NORMALIZATION FACTOR FOR VALUE IN 28D
041194,001786:
041195,001787: # PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING DVCALC
041196,001788:
041197,001789: 32,3660 71220 DVCALC STQ DLOAD
041198,001790: 32,3661 00040 32D
041199,001791: 32,3662 03722 X(T1)
041200,001792: 32,3663 54316 DSQ SR
041201,001793: 32,3664 20610 7
041202,001794: 32,3665 76276 DCOMP TAD
041203,001795: 32,3666 00003 02D
041204,001796: 32,3667 41501 NORM PUSH
041205,001797: 32,3670 00047 X1
041206,001798: 32,3671 60351 TLOAD NORM
041207,001799: 32,3672 00006 05D
041208,001800: 32,3673 00050 X2
041209,001801: 32,3674 70434 RTB SR1
041210,001802: 32,3675 45716 DPMODE
041211,001803: 32,3676 56264 XSU,2 DDV
041212,001804: 32,3677 00046 X1
041213,001805: 32,3700 77657 SR*
041214,001806: 32,3701 57170 6,2
041215,001807: 32,3702 03720 STORE PCON # THETA2/(THETA1-X(T1)**2)=PCON B28/26
041216,001808: 32,3703 41366 SQRT DMP
041217,001809: 32,3704 00011 08D
041218,001810: 32,3705 77701 NORM
041219,001811: 32,3706 00047 X1
041220,001812: 32,3707 14035 STODL 28D # THETA3*PCON**.5 B10/B8 -N1
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Page 929 |
041222,001814: 32,3710 03722 X(T1)
041223,001815: 32,3711 74301 NORM VXSC
041224,001816: 32,3712 00050 X2
041225,001817: 32,3713 03740 UR1/ # X(T1)*UR1/ B5+B1 -N2
041226,001818: 32,3714 74274 XAD,2 VXSC
041227,001819: 32,3715 00046 X1
041228,001820: 32,3716 00035 28D
041229,001821: 32,3717 63257 VSR* PDVL # THETA3(PCON**.5)X(T1)*UR1/ B7/B5
041230,001822: 32,3720 57207 0 -9D,2 # +
041231,001823: 32,3721 03746 UH/
041232,001824: 32,3722 53761 VXSC VSR* # THETA3(PCON**.5)UH/ B7/B5
041233,001825: 32,3723 00035 28D
041234,001826: 32,3724 20575 0 -4,1 # =
041235,001827: 32,3725 45455 VAD STADR
041236,001828: 32,3726 74077 STORE V2(T1)/ # V2(T1)/ B7/B5
041237,001829: 32,3727 51451 VSU ABVAL
041238,001830: 32,3730 03672 V(T1)/
041239,001831: 32,3731 03706 STORE DV # ABVAL(V2(T1)/-V1(T)/)=DV B7/B5
041240,001832: 32,3732 77650 GOTO
041241,001833: 32,3733 00040 32D
041242,001834:
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Page 930 |
041244,001836: # SUBROUTINE TO COMPUTE BOUNDS ON INDEPENDENT VARIABLE X(T1)
041245,001837:
041246,001838: # INPUT
041247,001839: # PUSHLIST
041248,001840: # PUSHLOC -4 MAJOR AXIS (MA) DP B30/B28
041249,001841: # PUSHLOC -2 MAJOR AXIS (MA) AGAIN DP B30/B28
041250,001842: # 28D BETA5=LAMBDA*BETA1 DP B9
041251,001843: # OTHER
041252,001844: # RCON DP B29/B27
041253,001845: # R(T1) DP B29/B27
041254,001846:
041255,001847: # OUTPUT
041256,001848: # MPAC
041257,001849: # X(T1)LIM LIMIT ON INDEPENDENT VARIABLE X(T1) DP B5
041258,001850:
041259,001851: # DEBRIS
041260,001852: # PUSHLIST
041261,001853: # C(PUSHLOC) MA-RCON DP (B30/28)-N1
041262,001854: # C(PUSHLOC) +2 MA DP B30/B28
041263,001855: # X1 NORMALIZATION FACTOR FOR MA-RCON
041264,001856: # 20D XT1LIM SUBROUTINE RETURN ADDRESS
041265,001857:
041266,001858: # PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING XT1LIM
041267,001859:
041268,001860: 32,3734 71220 XT1LIM STQ DLOAD
041269,001861: 32,3735 00024 20D
041270,001862: 32,3736 03636 RCON
041271,001863: 32,3737 44342 SR1 BDSU
041272,001864: 32,3740 65301 NORM PDDL # MA-RCON B30-N1
041273,001865: 32,3741 00050 X2
041274,001866: 32,3742 70525 PDDL SR1
041275,001867: 32,3743 03646 R(T1)
041276,001868: 32,3744 56221 BDSU DDV
041277,001869: 32,3745 41257 SL* DMP
041278,001870: 32,3746 57601 0 -3,2
041279,001871: 32,3747 00035 28D
041280,001872: 32,3750 45257 SL* DSU # BETA10=BETA5(MA-RT)/(MA-RC)-1 B11
041281,001873: 32,3751 20173 0 -6,1
041282,001874: 32,3752 33521 1RTEB25 +1 # 1.0 B-11
041283,001875: 32,3753 40152 SL1 BOV
041284,001876: 32,3754 65760 XT1LIM2
041285,001877: 32,3755 52040 BMN GOTO
041286,001878: 32,3756 65764 XT1LIM5
041287,001879: 32,3757 65762 XT1LIM3
041288,001880: 32,3760 77745 XT1LIM2 DLOAD # BETA10=POSMAX IF OVERFLOW
041289,001881: 32,3761 33542 2RTEB1
041290,001882: 32,3762 52166 XT1LIM3 SQRT GOTO # X(T1)=SQRT(BETA10)
041291,001883: 32,3763 65766 XT1LIMX
041292,001884: 32,3764 77745 XT1LIM5 DLOAD
041293,001885: 32,3765 33524 ZERORTE
041294,001886: 32,3766 77650 XT1LIMX GOTO
041295,001887: 32,3767 00024 20D
041296,001888:
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Page 931 |
041298,001890: # CONSTANTS FOR THE P37 AND P70 PROGRAMS AND SUBROUTINES
041299,001891:
041300,001892: 36,3254 BANK 36
041301,001893: 35,2000 SETLOC RTECON1
041302,001894: 35,2000 BANK
041303,001895:
041304,001896: 35,3477 20000 00000 1RTEB1 2DEC 1. B-1
041305,001897: 35,3501 10000 00000 1RTEB2 2DEC 1. B-2
041306,001898: 35,3503 04000 00000 1RTEB3 2DEC 1. B-3
041307,001899: 35,3505 02000 00000 1RTEB4 2DEC 1. B-4
041308,001900: 35,3507 00020 00000 1RTEB10 2DEC 1. B-10
041309,001901: 35,3511 00004 00000 1RTEB12 2DEC 1. B-12
041310,001902: 35,3513 00002 00000 1RTEB13 2DEC 1. B-13
041311,001903: 35,3515 00000 04000 1RTEB17 2DEC 1. B-17
041312,001904: 35,3517 00000 00010 1RTEB25 2DEC 1. B-25
041313,001905: # * * B25 AND B28 MUST BE CONSECUTIVE * *
041314,001906: 35,3521 00000 00001 1RTEB28 2DEC 1. B-28
041315,001907: 35,3523 00000 00000 ZERORTE 2DEC 0 B-28
041316,001908: 35,3525 77777 77557 M144RTE 2DEC -144. B-28
041317,001909: 35,3527 77777 77760 M15RTE 2DEC -15 B-28
041318,001910: 35,3531 00000 00012 10RTE 2DEC 10 B-28
041319,001911: 35,3533 54631 63145 M.6RTE 2DEC -.6
041320,001912: 35,3535 21463 06315 1.1RTEB1 2DEC 1.1 B-1
041321,001913: 35,3537 77777 77771 M6RTEB28 2DEC -6 B-28
041322,001914: 35,3541 37777 37777 2RTEB1 2OCT 3777737777
041323,001915: 35,3543 77777 77766 M9RTEB28 2DEC -9 B-28
041324,001916: 35,3545 77777 77767 M8RTEB28 2DEC -8 B-28
041325,001917: 35,3547 00000 35610 30480RTE 2DEC 30480. B-29
041326,001918: 35,3551 37405 12250 VCSPS 2DEC 31.510396 B-5 # (SEE 2VEXHUST)
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Page 932 |
041328,001920: 35,3553 33041 37714 VCRCS 2DEC 27.0664 B-5
041329,001921: 35,3555 00003 13241 MDOTRCS 2DEC .0016375 B-3
041330,001922: 35,3557 20000 00000 CSUBT 2DEC .5
041331,001923: 35,3561 00605 OCT605 OCT 00605
041332,001924: 35,3562 00612 OCT612 OCT 00612
041333,001925: 35,3563 40214 45266 MCOS7.5 2DEC -.99144486
041334,001926: 35,3565 73645 56536 MSIN7.5 2DEC -.13052619
041335,001927: 35,3567 70467 71205 MCOS22.5 2DEC -.92387953 B-2
041336,001928: 35,3571 16525 12525 THETA165 2DEC .4583333333
041337,001929: 35,3573 22525 12525 THETA210 2DEC .5833333333
041338,001930: 35,3575 17775 06676 EPC1RTE 2DEC .99966 B-1
041339,001931: 35,3577 00000 00062 EPC2RTE 2DEC 100. B-29
041340,001932: 35,3601 00020 14223 EPC3RTE 2DEC .001
041341,001933: 35,3603 00000 05174 EPC4RTE 2DEC .00001
041342,001934: 35,3605 00002 21727 EPC5RTE 2DEC .01 B-6
041343,001935: 35,3607 00000 01654 EPC6RTE 2DEC .000007 B-1
041344,001936: 35,3611 00000 00764 EPC7RTE 2DEC 1000. B-29
041345,001937: 35,3613 00000 00010 EPC9RTE 2DEC 1. B-25
041346,001938: 35,3615 00000 00322 EPC10RTE 2DEC .0001 B-7
041347,001939:
041348,001940: 35,3617 BANK 35
041349,001941: 35,2000 SETLOC RTECON1
041350,001942: 35,2000 BANK
041351,001943:
041352,001944: 35,3617 75725 75417 C4RTE 2DEC -6.986643 E7 B-30
041353,001945: 35,3621 00325 23740 K1RTE 2DEC 7. E6 B-29
041354,001946: 35,3623 00306 06614 K2RTE 2DEC 6495000. B-29
041355,001947: 35,3625 76027 70156 K3RTE 2DEC -.06105
041356,001948: 35,3627 74517 54131 K4RTE 2DEC -.10453
041357,001949: 35,3631 30276 05001 RTMURTE 2DEC 199650.501 B-18
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Page 933 |
041359,001951: 35,3633 00003 27040 E3RTE 2DEC 121920. B-29
041360,001952:
End of include-file P37_P70.agc. Parent file is MAIN.agc