Source Code
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These source-code files are part of a reconstructed copy of Comanche 45, the
second release, though not the final mission release, of the Apollo 10
Command Module (CM) Apollo Guidance Computer (AGC) software. Comanche 45 was
preceded by Comanche 44 and followed by Comanche 45/2 (the flown release). The reconstruction
is believed to be exactly accurate, but in the absence of an actual Apollo-era
listing of Comanche 45, some explanation of the reconstruction process is needed
to insure confidence in that accuracy.
The starting point was the source code of Comanche 44 (itself previously accurately
reconstructed). Comanche 44 source code was then modified
by incorporating changes known from contemporary documentation to have been
made between revisions 44 and 45. The now-reconstructed Comanche 45 source code was
verified by assembling it and checking that the assembled code had
the expected known-correct memory-bank checksums.
Note that page numbers in the reconstructed code tend to match those in the Comanche 55, the
most-similar revision of Comanche for which we have access to an actual non-reconstructed hardcopy;
the source code would likely have different page numbers in a contemporary
Comanche 45 listing.
Annotations that were not present in the contemporary source code have been added to the reconstructed
code to justify each change relative to Comanche 44. Here's a guide to the Apollo documentation referenced
in those annotations:
There is also
a detailed commentary about the reconstruction process.
Comments expected to have been present in the original source code are prefixed with a single '#' symbol,
whereas comments added later are prefixed by "##" or "###". Report any errors
noted by creating an
issue report at the Virtual AGC
Project's GitHub repository.
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038790,000002: ## Copyright: Public domain.
038791,000003: ## Filename: P37,P70.agc
038792,000004: ## Purpose: A section of Comanche revision 045.
038793,000005: ## It is part of the reconstructed source code for the
038794,000006: ## second release of the flight software for the Command
038795,000007: ## Module's (CM) Apollo Guidance Computer (AGC) for Apollo 10.
038796,000008: ## The code has been recreated from a copy of Comanche 055. It
038797,000009: ## has been adapted such that the resulting bugger words
038798,000010: ## exactly match those specified for Comanche 45 in NASA drawing
038799,000011: ## 2021153D, which gives relatively high confidence that the
038800,000012: ## reconstruction is correct.
038801,000013: ## Assembler: yaYUL
038802,000014: ## Contact: Ron Burkey <info@sandroid.org>.
038803,000015: ## Website: www.ibiblio.org/apollo/index.html
038804,000016: ## Mod history: 2020-12-06 MAS Created from Comanche 44.
038805,000017:
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Page 890
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038807,000019: 31,3700 BANK 31
038808,000020: 36,2000 SETLOC RTE1
038809,000021: 36,2000 BANK
038810,000022:
038811,000023: 36,2454 E7,1631 EBANK= RTEDVD
038812,000024: 36,2454 COUNT 31/P37
038813,000025:
038814,000026: # PROGRAM DESCRIPTION - P37, RETURN TO EARTH
038815,000027:
038816,000028: # DESCRIPTION
038817,000029: # A RETURN TO EARTH TRAJECTORY IS COMPUTED PROVIDED THE CSM IS OUTSIDE THE LUNAR SPHERE OF INFLUENCE AT THE
038818,000030: # TIME OF IGNITION. INITIALLY A CONIC TRAJECTORY IS DETERMINED AND RESULTING IGNITION AND REENTRY PARAMETERS ARE
038819,000031: # DISPLAYED TO THE ASTRONAUT. THEN IF THE ASTRONAUT SO DESIRES, A PRECISION TRAJECTORY IS DETERMINED WITH THE
038820,000032: # RESULTING IGNITION AND REENTRY PARAMETERS DISPLAYED. UPON FINAL ACCEPTANCE BY THE ASTRONAUT, THE PROGRAM
038821,000033: # COMPUTES AND STORES THE TARGET PARAMETERS FOR RETURN TO EARTH FOR USE BY SPS PROGRAM (P40) OR RCS PROGRAM (P41).
038822,000034:
038823,000035: # CALLING SEQUENCE
038824,000036: # L TC P37
038825,000037:
038826,000038: # SUBROUTINES CALLED
038827,000039: # PREC100
038828,000040: # V2T100
038829,000041: # RTENCK2
038830,000042: # RTENCK3
038831,000043: # TIMERAD
038832,000044: # PARAM
038833,000045: # V2T100
038834,000046: # GAMDV10
038835,000047: # XT1LIM
038836,000048: # DVCALC
038837,000049: # RTENCK1
038838,000050: # INTSTALL
038839,000051: # INTEGRVS
038840,000052: # RTEVN
038841,000053: # RTEDISP
038842,000054: # TMRAD100
038843,000055: # AUGEKUGL
038844,000056: # LAT-LONG
038845,000057: # TMRAD100
038846,000058: # TIMERAD
038847,000059: # INVC100
038848,000060: # CSMPREC
038849,000061: # GETERAD
038850,000062: # TIMETHET
038851,000063: # P370ALRM
038852,000064: # VN1645
038853,000065: # POLY
038854,000066:
038855,000067: # ERASABLE INITIALIZATION REQUIRED
038856,000068: # CSM STATE VECTOR
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Page 891
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038858,000070: # NJETSFLG NUMBER OF JETS IF THE RCS PROPULSION SYSTEM SELECTED STATE FLAG 0=4 JETS 1=2 JETS
038859,000071:
038860,000072: # ASTRONAUT INPUT
038861,000073: # SPRTETIG TIME OF IGNITION (OVERLAYS TIG) DP B28 CS
038862,000074: # VPRED DESIRED CHANGE IN VELOCITY AT TIG(PROGRM COMPUTED IF 0) DP B7 METERS/CS
038863,000075: # GAMMAEI DESIRED FLIGHT PATH ANGLE AT REENTRY (COMPUTED IF 0) DP B0 REVS + ABOVE HORIZ.
038864,000076: # OPTION2 PROPULSION SYSTEM OPTION SP B14 1=SPS, 2=RCS
038865,000077:
038866,000078: # OUTPUT
038867,000079: # CONIC OR PRECISION TRAJECTORY DISPLAY
038868,000080: # VPRED VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE DP B7 METERS/CS
038869,000081: # T3TOT4 TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE DP B28 CS
038870,000082: # GAMMAEI FLIGHT PATH ANGLE AT 400,000 FT. ENTRY ALTITUDE DP B0 REVS + ABOVE HORIZON
038871,000083: # DELVLVC INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR B7 METERS/CS
038872,000084: # LAT(SPL) LATITUDE OF THE LANDING SITE DP B0 REVS
038873,000085: # LNG(SPL) LONGITUDE OF THE LANDING SITE DP B0 REVS
038874,000086: # TARGETING COMPUTATION DISPLAY
038875,000087: # TIG RECOMPUTED TIG BASED ON THRUST OPTION DP B28 CS
038876,000088: # TTOGO TIME FROM TIG DP B28 CS
038877,000089: # +MGA POSITIVE MIDDLE GIMBAL ANGLE DP B0 REVS -.02 IF REFSMFLG=0
038878,000090: # THRUST PROGRAM COMMUNICATION
038879,000091: # XDELVFLG EXTERNAL DELTA V FLAG STATE FLAG SET 0 FOR LAMBERT AIMPT
038880,000092: # NORMSW LAMBERT AIMPT ROTATION SWITCH STATE FLAG SET 0 FOR NO ROTATION
038881,000093: # ECSTEER CROSS PRODUCT STEERING CONSTANT SP B2 SET 1
038882,000094: # RTARG CONICALLY INTEGRATED REENTRY POSITION VECTOR VECTOR B29 METERS
038883,000095: # TPASS4 REENTRY TIME DP B28 CS
038884,000096:
038885,000097: 36,2454 05412 P37 TC PHASCHNG # P37 IS NOT RESTARTABLE.
038886,000098: 36,2455 00004 OCT 4
038887,000099:
038888,000100: 36,2456 06006 TC INTPRET
038889,000101: 36,2457 66170 AXT,1 SXA,1
038890,000102: 36,2460 04000 OCT 04000
038891,000103: 36,2461 03424 ECSTEER
038892,000104: 36,2462 77745 DLOAD
038893,000105: 36,2463 15335 ZEROVECS
038894,000106: 36,2464 03767 STORE VPRED
038895,000107: 36,2465 03771 STORE GAMMAEI
038896,000108: 36,2466 77776 EXIT
038897,000109: 36,2467 33234 CAF V6N33RTE # INPUT TIG STORED IN SPRTETIG
038898,000110: 36,2470 03223 TCR P370GOF # OVERLAYED WITH TIG
038899,000111: 36,2471 12467 TCF -2 # DESPLAY NEW DATA
038900,000112: 36,2472 33240 CAF V6N60RTE # INPUT REENTRY ANGLE IN GAMMAEI
038901,000113: 36,2473 03177 TCR P37GFRB1 # AND DESIRED DELTA V IN RTEDVD
038902,000114: 36,2474 12472 TCF -2 # DISPLAY NEW DATA
038903,000115: 36,2475 06006 RTE299 TC INTPRET
038904,000116: 36,2476 71331 SSP DLOAD
038905,000117: 36,2477 00122 OVFIND
038906,000118: 36,2500 00000 0
038907,000119: 36,2501 03767 VPRED
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Page 892
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038909,000121: 36,2502 17632 STODL RTEDVD
038910,000122: 36,2503 03771 GAMMAEI
038911,000123: 36,2504 17634 STODL RTEGAM2D
038912,000124: 36,2505 33521 1RTEB13
038913,000125: 36,2506 17735 STODL CONICX1
038914,000126: 36,2507 33625 C4RTE
038915,000127: 36,2510 37652 STCALL MAMAX1
038916,000128: 36,2511 64450 INVC100 # GET R(T1)/,V(T1)/,UR1/,UH/
038917,000129: 36,2512 71214 CLEAR DLOAD
038918,000130: 36,2513 02662 SLOWFLG
038919,000131: 36,2514 03632 RTEDVD
038920,000132: 36,2515 51444 BPL ABS
038921,000133: 36,2516 74526 RTE317
038922,000134: 36,2517 03632 STORE RTEDVD
038923,000135: 36,2520 45345 DLOAD DSU
038924,000136: 36,2521 03646 R(T1)
038925,000137: 36,2522 33627 K1RTE
038926,000138: 36,2523 43040 BMN SET
038927,000139: 36,2524 74526 RTE317
038928,000140: 36,2525 02462 SLOWFLG
038929,000141: 36,2526 77545 RTE317 DLOAD EXIT
038930,000142: 36,2527 03646 R(T1)
038931,000143: 36,2530 07171 TC POLY
038932,000144: 36,2531 00002 DEC 2 B-14
038933,000145: 36,2532 02544 35436 2DEC 181000434. B-31
038934,000146: 36,2534 14040 05066 2DEC 1.50785145 B-2
038935,000147: 36,2536 44052 60030 2DEC* -6.49993057 E-9 B27*
038936,000148: 36,2540 26415 25057 2DEC* 9.76938926 E-18 B56*
038937,000149: 36,2542 06006 TC INTPRET
038938,000150: 36,2543 77752 SL1
038939,000151: 36,2544 17654 STODL MAMAX2 # C0+C1*R+C2*R**2+C3*R**3=MAMAX2 B30
038940,000152: 36,2545 33551 M9RTEB28
038941,000153: 36,2546 17730 STODL NN1A
038942,000154: 36,2547 33631 K2RTE
038943,000155: 36,2550 17636 RTE320 STODL RCON # RCON=K2
038944,000156: 36,2551 03634 RTEGAM2D
038945,000157: 36,2552 44254 BZE BDSU
038946,000158: 36,2553 74562 RTE340 # GOTORTE340 IF REENTRY ANGLE NOT INPUT
038947,000159: 36,2554 33507 1RTEB2
038948,000160: 36,2555 71406 PUSH COS # PL02D
038949,000161: 36,2556 73525 PDDL SIN
038950,000162: 36,2557 45465 BDDV STADR # PL00D
038951,000163: 36,2560 40051 STCALL X(T2) # X(T2)=COT(GAM2D) B0
038952,000164: 36,2561 74575 RTE360
038953,000165: 36,2562 45345 RTE340 DLOAD DSU
038954,000166: 36,2563 03646 R(T1)
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Page 893
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038956,000168: 36,2564 33627 K1RTE
038957,000169: 36,2565 71240 BMN DLOAD
038958,000170: 36,2566 74572 RTE350
038959,000171: 36,2567 33635 K4RTE
038960,000172: 36,2570 37726 STCALL X(T2) # X(T2)=K4
038961,000173: 36,2571 74575 RTE360
038962,000174: 36,2572 77745 RTE350 DLOAD
038963,000175: 36,2573 33633 K3RTE
038964,000176: 36,2574 03726 STORE X(T2) # X(T2)=K3
038965,000177: 36,2575 77624 RTE360 CALL
038966,000178: 36,2576 65075 V2T100
038967,000179: 36,2577 52054 BZE GOTO
038968,000180: 36,2600 74602 RTE367
038969,000181: 36,2601 74764 RTEALRM
038970,000182: 36,2602 77775 RTE367 VLOAD
038971,000183: 36,2603 03640 R(T1)/
038972,000184: 36,2604 16657 STODL RVEC
038973,000185: 36,2605 03636 RCON
038974,000186: 36,2606 26760 STOVL RDESIRED
038975,000187: 36,2607 03700 V2(T1)/
038976,000188: 36,2610 36746 STCALL VVEC
038977,000189: 36,2611 64277 TMRAD100
038978,000190: 36,2612 77615 DAD
038979,000191: 36,2613 03716 T1
038980,000192: 36,2614 17736 STODL T2
038981,000193: 36,2615 03634 RTEGAM2D
038982,000194: 36,2616 52054 BZE GOTO
038983,000195: 36,2617 74621 RTE369
038984,000196: 36,2620 74643 RTE372
038985,000197: 36,2621 51575 RTE369 VLOAD ABVAL
038986,000198: 36,2622 03710 V(T2)/
038987,000199: 36,2623 77776 EXIT
038988,000200: 36,2624 07171 TC POLY
038989,000201: 36,2625 00002 DEC 2 B-14
038990,000202: 36,2626 00000 00000 2DEC 0 B-28
038991,000203: 36,2630 47021 65002 2DEC -4.8760771 E-2 B4
038992,000204: 36,2632 35610 07722 2DEC 4.5419476 E-4 B11
038993,000205: 36,2634 63772 63276 2DEC -1.4317675 E-6 B18
038994,000206:
038995,000207: 36,2636 06006 TC INTPRET
038996,000208: 36,2637 77615 DAD
038997,000209: 36,2640 01352 RTED1
038998,000210: 36,2641 52052 SL3 GOTO # X(T2),=D1+D2V2+D3V2**2+D4V2**3
038999,000211: 36,2642 74645 RTE373
039000,000212: 36,2643 77745 RTE372 DLOAD # X(T2),=X(T2)
039001,000213: 36,2644 03726 X(T2)
039002,000214: 36,2645 41425 RTE373 DSU PUSH # X(T2)ERR B0 PL02D
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Page 894
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039004,000216: 36,2646 03726 X(T2)
039005,000217: 36,2647 53575 VLOAD UNIT
039006,000218: 36,2650 03656 R(T2)/ # B58
039007,000219: 36,2651 36152 STCALL ALPHAV
039008,000220: 36,2652 26505 GETERAD
039009,000221: 36,2653 77615 DAD
039010,000222: 36,2654 33641 E3RTE
039011,000223: 36,2655 45206 PUSH DSU # RCON,=(E1/(1+E2BETA11)**.5)+E3 B29 PL04D
039012,000224: 36,2656 03636 RCON
039013,000225: 36,2657 45246 ABS DSU
039014,000226: 36,2660 33605 EPC2RTE
039015,000227: 36,2661 52040 BMN GOTO
039016,000228: 36,2662 74664 RTE374
039017,000229: 36,2663 74671 RTE375
039018,000230: 36,2664 51545 RTE374 DLOAD ABS
039019,000231: 36,2665 00001 00D
039020,000232: 36,2666 50025 DSU BMN
039021,000233: 36,2667 33607 EPC3RTE
039022,000234: 36,2670 74741 P37E
039023,000235: 36,2671 43345 RTE375 DLOAD DAD
039024,000236: 36,2672 03730 NN1A
039025,000237: 36,2673 33527 1RTEB28
039026,000238: 36,2674 67240 BMN SLOAD
039027,000239: 36,2675 74701 RTE380
039028,000240: 36,2676 33567 OCT605
039029,000241: 36,2677 77650 GOTO
039030,000242: 36,2700 74764 RTEALRM # TOO MANY ITERATIONS
039031,000243: 36,2701 03730 RTE380 STORE NN1A
039032,000244: 36,2702 53025 DSU BZE
039033,000245: 36,2703 33553 M8RTEB28
039034,000246: 36,2704 74722 RTE385
039035,000247: 36,2705 45345 DLOAD DSU
039036,000248: 36,2706 00001 00D
039037,000249: 36,2707 03666 DRCON
039038,000250: 36,2710 65301 NORM PDDL # X(T2)ERR-X(T2)ERR,=Z1 PL06D
039039,000251: 36,2711 00047 X1
039040,000252: 36,2712 03670 RPRE'
039041,000253: 36,2713 56225 DSU DDV # X(T2)PRI-X(T2)=Z2 PL04D
039042,000254: 36,2714 03726 X(T2)
039043,000255: 36,2715 53605 DMP SL* # DX(T2)=X(T2)ERR(Z2/Z1)
039044,000256: 36,2716 00001 00D
039045,000257: 36,2717 20201 0,1
039046,000258: 36,2720 77650 GOTO
039047,000259: 36,2721 74724 RTE390
039048,000260: 36,2722 77745 RTE385 DLOAD # DX(T2)=X(T2)ERR
039049,000261: 36,2723 00001 00D
039050,000262: 36,2724 14021 RTE390 STODL 16D # DX(T2) PL02D
039051,000263: 36,2725 77626 STADR
039052,000264: 36,2726 60141 STODL RCON # RCON=RCON,
039053,000265: 36,2727 77600 BOV
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Page 895
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039055,000267: 36,2730 74575 RTE360
039056,000268: 36,2731 17666 STODL DRCON # X(T2)ERR,=X(T2)ERR
039057,000269: 36,2732 03726 X(T2)
039058,000270: 36,2733 17670 STODL RPRE' # X(T2)PRI=X(T2)
039059,000271: 36,2734 00021 16D
039060,000272: 36,2735 77615 DAD
039061,000273: 36,2736 03726 X(T2)
039062,000274: 36,2737 37726 STCALL X(T2) # X(T2)=X(T2)+DX(T2)
039063,000275: 36,2740 74575 RTE360 # REITERATE
039064,000276: 36,2741 77624 P37E CALL # DISPLAY CONIC SOLUTION
039065,000277: 36,2742 74770 RTEVN
039066,000278: 36,2743 41345 RTE505 DLOAD DMP
039067,000279: 36,2744 03720 PCON
039068,000280: 36,2745 03754 BETA1
039069,000281: 36,2746 53021 BDSU BZE
039070,000282: 36,2747 03636 RCON
039071,000283: 36,2750 74756 RTE510
039072,000284: 36,2751 71240 BMN DLOAD
039073,000285: 36,2752 74756 RTE510
039074,000286: 36,2753 33507 1RTEB2
039075,000287: 36,2754 77650 GOTO # ENTRY NEAR APOGEE
039076,000288: 36,2755 74760 RTE515
039077,000289: 36,2756 57545 RTE510 DLOAD DCOMP # ENTRY NEAR PERIGEE
039078,000290: 36,2757 33507 1RTEB2
039079,000291: 36,2760 37761 RTE515 STCALL PHI2
039080,000292: 36,2761 64541 PREC100 # PRECISION TRAJECTORY COMPUTATION
039081,000293: 36,2762 77654 RTE625 BZE
039082,000294: 36,2763 75016 P37G
039083,000295: 36,2764 77624 RTEALRM CALL
039084,000296: 36,2765 64262 P370ALRM
039085,000297: 36,2766 77776 EXIT
039086,000298: 36,2767 12454 TCF P37 # RECYCLE AFTER ALARM DISPLAY
039087,000299:
039088,000300: # RETURN TO EARTH DISPLAY SUBROUTINE
039089,000301:
039090,000302: 36,2770 45020 RTEVN STQ CALL
039091,000303: 36,2771 03763 VNSTORE
039092,000304: 36,2772 64316 RTEDISP # DISPLAY PREPARATION
039093,000305: 36,2773 77776 EXIT
039094,000306: 36,2774 33236 CAF V6N61RTE # LATITUDE,LONGITUDE,BLANK
039095,000307: 36,2775 03207 TCR P370GOFR # IN LAT(SPL),LNG(SPL),-
039096,000308: 36,2776 35015 CAF FOUR
039097,000309: 36,2777 03203 TCR 37BLANK +1
039098,000310: 36,3000 13005 TCF +5
039099,000311: 36,3001 12454 TCF P37 # RECYCLE
039100,000312: 36,3002 33237 CAF V6N39RTE # T21 HRS,MIN,SEC IN T3TOT4
039101,000313: 36,3003 03223 TCR P370GOF
039102,000314: 36,3004 12454 TCF P37 # RECYCLE
039103,000315: 36,3005 33240 CAF V6N60RTE # DISPLAY BLANK,V(T2),FPA2
039104,000316: 36,3006 03177 TCR P37GFRB1 # IN -,VPRED,GAMMAEI
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Page 896
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039106,000318: 36,3007 12454 TCF P37 # RECYCLE
039107,000319: 36,3010 33241 CAF V6N81RTE # DISPLAY DELTA V (LV) IN DELVLVC
039108,000320: 36,3011 03223 TCR P370GOF
039109,000321: 36,3012 12454 TCF P37 # RECYCLE
039110,000322: 36,3013 06006 TCR INTPRET
039111,000323: 36,3014 77650 GOTO
039112,000324: 36,3015 03763 VNSTORE
039113,000325:
039114,000326: # PRECISION DISPLAY, TARGETING COMPUTATION AND RTE END PROCESSING
039115,000327:
039116,000328: 36,3016 77624 P37G CALL
039117,000329: 36,3017 74770 RTEVN
039118,000330: 36,3020 77776 EXIT
039119,000331: 36,3021 35023 P37N CAF SEVEN
039120,000332: 36,3022 55131 TS OPTION1
039121,000333: 36,3023 35017 CAF ONE
039122,000334: 36,3024 55132 TS OPTION2
039123,000335: 36,3025 33235 CAF V4N06RTE # DISPLAY RCS OR SPS OPTION SPS ASSUMED
039124,000336: 36,3026 03223 TCR P370GOF
039125,000337: 36,3027 13025 TCF -2 # RECYCLE
039126,000338: 36,3030 06006 TC INTPRET # PROCEED
039127,000339: 36,3031 67201 SETPD SLOAD
039128,000340: 36,3032 00001 00D
039129,000341: 36,3033 01133 OPTION2
039130,000342: 36,3034 53025 DSU BZE
039131,000343: 36,3035 33521 1RTEB13
039132,000344: 36,3036 75045 P37Q
039133,000345: 36,3037 60335 SLOAD NORM # SPS
039134,000346: 36,3040 00111 EMDOT
039135,000347: 36,3041 00047 X1
039136,000348: 36,3042 52125 PDDL GOTO
039137,000349: 36,3043 33557 VCSPS
039138,000350: 36,3044 75056 P37T
039139,000351: 36,3045 43145 P37Q DLOAD BON # RCS
039140,000352: 36,3046 33563 MDOTRCS
039141,000353: 36,3047 00700 NJETSFLG
039142,000354: 36,3050 75052 P37R
039143,000355: 36,3051 77752 SL1
039144,000356: 36,3052 77752 P37R SL1
039145,000357: 36,3053 65301 NORM PDDL
039146,000358: 36,3054 00047 X1
039147,000359: 36,3055 33561 VCRCS
039148,000360: 36,3056 56325 P37T PDDL DDV # DV/VC B7 -B5 = B2 PL02D
039149,000361: 36,3057 03706 DV
039150,000362: 36,3060 77776 EXIT
039151,000363: 36,3061 07171 TC POLY
039152,000364: 36,3062 00001 DEC 1 B-14
039153,000365: 36,3063 00001 05070 2DEC 5.66240507 E-4 B-3
039154,000366: 36,3065 17527 36700 2DEC 9.79487897 E-1 B-1
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|
Page 897
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039156,000368: 36,3067 47114 70670 2DEC -.388281955 B1
039157,000369: 36,3071 06006 TC INTPRET
039158,000370: 36,3072 67206 PUSH SLOAD # (1-E)**(-DV/VC)=A B3 PL04D
039159,000371: 36,3073 03076 WEIGHT/G
039160,000372: 36,3074 56205 DMP DDV # DTB=(M0/MDOT)A B16+B3-B3=B16 PL00D
039161,000373: 36,3075 41257 SL* DMP
039162,000374: 36,3076 20165 0 -12D,1
039163,000375: 36,3077 33565 CSUBT
039164,000376: 36,3100 77621 BDSU
039165,000377: 36,3101 03716 T1
039166,000378: 36,3102 03413 STORE TIG # TIG=T1-CT*DTB B28
039167,000379: 36,3103 77776 EXIT
039168,000380: 36,3104 33234 CAF V6N33RTE # DISPLAY BIASED TIG
039169,000381: 36,3105 03223 TCR P370GOF
039170,000382: 36,3106 13104 TCF -2
039171,000383: 36,3107 35021 CAF ZERO
039172,000384: 36,3110 55125 TS VHFCNT
039173,000385: 36,3111 55126 TS TRKMKCNT
039174,000386: 36,3112 06006 TC INTPRET
039175,000387: 36,3113 77624 CALL # CONICALLY INTEGRATE FROM R1,V1 OVER T12
039176,000388: 36,3114 63700 RTENCK1
039177,000389: 36,3115 53575 VLOAD UNIT # PL00D
039178,000390: 36,3116 03656 R(T2)/
039179,000391: 36,3117 74315 PDVL VXSC # UR2 B1 PL06D
039180,000392: 36,3120 03740 UR1/
039181,000393: 36,3121 33571 MCOS7.5
039182,000394: 36,3122 74315 PDVL VXSC # -UR1(COS7.5) B1 PL12D
039183,000395: 36,3123 03746 UH/
039184,000396: 36,3124 33573 MSIN7.5
039185,000397: 36,3125 50255 VAD DOT # K/=-UR1(COS7.5)-UH(SIN7.5) B2 PL00D
039186,000398: 36,3126 50015 DAD BMN
039187,000399: 36,3127 33575 MCOS22.5
039188,000400: 36,3130 75155 P37W
039189,000401: 36,3131 50375 VLOAD DOT # K/ . UR2 GR COS22.5
039190,000402: 36,3132 03746 UH/
039191,000403: 36,3133 03656 R(T2)/
039192,000404: 36,3134 71240 BMN DLOAD
039193,000405: 36,3135 75141 P37U
039194,000406: 36,3136 33577 THETA165
039195,000407: 36,3137 52006 PUSH GOTO
039196,000408: 36,3140 75143 P37V
039197,000409: 36,3141 41545 P37U DLOAD PUSH
039198,000410: 36,3142 33601 THETA210
039199,000411: 36,3143 77756 P37V SIN
039200,000412: 36,3144 16732 STODL SNTH
039201,000413: 36,3145 43146 COS CLEAR
039202,000414: 36,3146 03666 RVSW
039203,000415: 36,3147 26734 STOVL CSTH
039204,000416: 36,3150 03640 R(T1)/
|
|
Page 898
|
039206,000418: 36,3151 26657 STOVL RVEC
039207,000419: 36,3152 03700 V2(T1)/
039208,000420: 36,3153 36746 STCALL VVEC
039209,000421: 36,3154 24744 TIMETHET
039210,000422: 36,3155 43014 P37W CLEAR CLEAR
039211,000423: 36,3156 01267 XDELVFLG
039212,000424: 36,3157 03665 NORMSW
039213,000425: 36,3160 77214 SET VLOAD
039214,000426: 36,3161 01071 FINALFLG
039215,000427: 36,3162 77626 STADR
039216,000428: 36,3163 60362 STODL RTARG
039217,000429: 36,3164 00037 T
039218,000430: 36,3165 77615 DAD
039219,000431: 36,3166 03716 T1
039220,000432: 36,3167 27656 STOVL TPASS4
039221,000433: 36,3170 03700 V2(T1)/
039222,000434: 36,3171 77651 VSU
039223,000435: 36,3172 03672 V(T1)/
039224,000436: 36,3173 37646 STCALL DELVSIN
039225,000437: 36,3174 73003 VN1645
039226,000438: 36,3175 77650 GOTO
039227,000439: 36,3176 75155 P37W
039228,000440:
039229,000441: # SUBROUTINE TO GO TO GOFLASHR AND BLANK R1
039230,000442:
039231,000443: 36,3177 00006 P37GFRB1 EXTEND
039232,000444: 36,3200 23762 QXCH SPRTEX
039233,000445: 36,3201 03207 TCR P370GOFR
039234,000446: 36,3202 35017 37BLANK CAF ONE
039235,000447: 36,3203 05526 TCR BLANKET
039236,000448: 36,3204 15217 TCF ENDOFJOB
039237,000449: 36,3205 01762 TC SPRTEX # RECYCLE
039238,000450: 36,3206 13232 TCF P37PROC # PROCEED
039239,000451:
039240,000452: # SUBROUTINE TO GO TO GOFLASHR
039241,000453:
039242,000454: 36,3207 00006 P370GOFR EXTEND
039243,000455: 36,3210 23733 QXCH RTENCKEX
039244,000456: 36,3211 04662 TCR BANKCALL
039245,000457: 36,3212 21057 CADR GOFLASHR
039246,000458: 36,3213 14106 TCF GOTOPOOH # TERMINATE
039247,000459: 36,3214 13217 TCF +3
039248,000460: 36,3215 13221 TCF +4
039249,000461: 36,3216 01733 TC RTENCKEX # IMMEDIATE RETURN
039250,000462: 36,3217 51733 INDEX RTENCKEX # PROCEED
039251,000463: 36,3220 10004 TCF 0 +4
039252,000464: 36,3221 51733 INDEX RTENCKEX # RECYCLE
039253,000465: 36,3222 10003 TCF 0 +3
039254,000466:
039255,000467: # SUBROUTINE TO GO TO GOFLASH
039256,000468:
|
|
Page 899
|
039258,000470: 36,3223 00006 P370GOF EXTEND
039259,000471: 36,3224 23762 QXCH SPRTEX
039260,000472: 36,3225 04662 TCR BANKCALL
039261,000473: 36,3226 20720 CADR GOFLASH
039262,000474: 36,3227 14106 TCF GOTOPOOH
039263,000475: 36,3230 13232 TCF +2
039264,000476: 36,3231 01762 TC SPRTEX
039265,000477: 36,3232 51762 P37PROC INDEX SPRTEX
039266,000478: 36,3233 10001 TCF 0 +1
039267,000479: 36,3234 01441 V6N33RTE VN 0633
039268,000480: 36,3235 01006 V4N06RTE VN 0406
039269,000481: 36,3236 01475 V6N61RTE VN 0661
039270,000482: 36,3237 01447 V6N39RTE VN 0639
039271,000483: 36,3240 01474 V6N60RTE VN 0660
039272,000484: 36,3241 01521 V6N81RTE VN 0681
039273,000485: 32,2262 BANK 32
039274,000486: 32,2000 SETLOC RTE
039275,000487: 32,2000 BANK
039276,000488: 32,2262 COUNT 32/RTE
039277,000489:
|
|
Page 900
|
039279,000491: # ALARM DISPLAY SUBROUTINE
039280,000492:
039281,000493: 32,2262 77420 P370ALRM STQ EXIT
039282,000494: 32,2263 03762 SPRTEX
039283,000495: 32,2264 30154 CA MPAC
039284,000496: 32,2265 05756 TC VARALARM
039285,000497: 32,2266 32276 CAF V5N09RTE
039286,000498: 32,2267 04662 TC BANKCALL
039287,000499: 32,2270 20720 CADR GOFLASH
039288,000500: 32,2271 14106 TCF GOTOPOOH
039289,000501: 32,2272 12266 TCF -4
039290,000502: 32,2273 06006 TC INTPRET
039291,000503: 32,2274 77650 GOTO
039292,000504: 32,2275 03762 SPRTEX
039293,000505: 32,2276 01211 V5N09RTE VN 0509
039294,000506:
|
|
Page 901
|
039296,000508: # TIME RADIUS CALLING SUBROUTINE
039297,000509:
039298,000510: # INPUT
039299,000511: # RVEC INITIAL POSITION VECTOR VECTOR B29 METERS
039300,000512: # VVEC INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039301,000513: # RDESIRED FINAL RADIUS FOR WHICH TRANSFER TIME IS TO BE COMPUTED DP B29 METERS
039302,000514: # CONICX1 X1 SETTING FOR CONIC SUBROUTINES -2=EARTH SP B14
039303,000515:
039304,000516: # OUTPUT
039305,000517: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039306,000518: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039307,000519: # T12 TRANSFER TIME TO FINAL RADIUS DP B28 CS
039308,000520:
039309,000521: 32,2277 43020 TMRAD100 STQ CLEAR
039310,000522: 32,2300 03733 RTENCKEX
039311,000523: 32,2301 03666 RVSW
039312,000524: 32,2302 67164 AXC,2 SXA,2
039313,000525: 32,2303 20000 OCT 20000
039314,000526: 32,2304 02756 SGNRDOT
039315,000527: 32,2305 45140 LXC,1 CALL
039316,000528: 32,2306 03734 CONICX1
039317,000529: 32,2307 25556 TIMERAD
039318,000530: 32,2310 27710 STOVL V(T2)/ # PL00D
039319,000531: 32,2311 77626 STADR
039320,000532: 32,2312 60121 STODL R(T2)/
039321,000533: 32,2313 00037 T
039322,000534: 32,2314 37724 STCALL T12
039323,000535: 32,2315 03733 RTENCKEX
039324,000536:
|
|
Page 902
|
039326,000538: # DISPLAY CALCULATION SUBROUTINE
039327,000539:
039328,000540: # DESCRIPTION
039329,000541: # OUTPUT FOR DISPLAY IS CONVERTED TO PROPER UNITS AND PLACED IN OUTPUT STORAGE REGISTERS. LANDING SITE
039330,000542: # COMPUTATION FOR DETERMINING LANDING SITE LATITUDE AND LONGITUDE IS INCLUDED IN THE ROUTINE.
039331,000543:
039332,000544: # CALLING SEQUENCE
039333,000545: # L CALL
039334,000546: # L+1 RTEDISP
039335,000547:
039336,000548: # SUBROUTINES CALLED
039337,000549: # TMRAD100
039338,000550: # AUGEKUGL
039339,000551: # LAT-LONG
039340,000552:
039341,000553: # ERASABLE INITIALIZATION REQUIRED
039342,000554: # PUSHLIST
039343,000555: # NONE
039344,000556: # MPAC
039345,000557: # NONE
039346,000558: # OTHER
039347,000559: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039348,000560: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039349,000561: # T2 FINAL TIME DP B28 CS
039350,000562: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039351,000563: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039352,000564: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039353,000565: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039354,000566:
039355,000567: # OUTPUT
039356,000568: # VPRED VELOCITY MAGNITUDE AT 400,000 FT. ENTRY ALTITUDE DP B7 METERS/CS
039357,000569: # T3TOT4 TRANSIT TIME TO 400,000 FT. ENTRY ALTITUDE DP B28 CS
039358,000570: # GAMMAEI FLIGHT PATH ANGLE AT 400,000 FT. ENTRY ALTITUDE DP B0 REVS + ABOVE HORIZ
039359,000571: # DELVLVC INITIAL VELOCITY CHANGE VECTOR IN LOCAL VERTICAL COORD. VECTOR B7 METERS/CS
039360,000572: # LAT(SPL) LATITUDE OF THE LANDING SITE DP B0 REVS
039361,000573: # LNG(SPL) LONGITUDE OF THE LANDING SITE DP B0 REVS
039362,000574:
039363,000575: 32,2316 77220 RTEDISP STQ VLOAD # DISPLAY
039364,000576: 32,2317 03762 SPRTEX
039365,000577: 32,2320 03710 V(T2)/
039366,000578: 32,2321 65256 UNIT PDDL
039367,000579: 32,2322 00045 36D
039368,000580: 32,2323 17767 STODL VPRED # V(T2)
039369,000581: 32,2324 03736 T2
039370,000582: 32,2325 77625 DSU
039371,000583: 32,2326 03413 SPRTETIG
039372,000584: 32,2327 26641 STOVL T3TOT4 # T21
039373,000585: 32,2330 03656 R(T2)/
039374,000586: 32,2331 50256 UNIT DOT
039375,000587: 32,2332 77752 SL1
039376,000588:
|
|
Page 903
|
039378,000590: 32,2333 44326 ARCCOS BDSU
039379,000591: 32,2334 33507 1RTEB2
039380,000592: 32,2335 27771 STOVL GAMMAEI # FLIGHT PATH ANGLE T2
039381,000593: 32,2336 03700 V2(T1)/
039382,000594: 32,2337 41451 VSU PUSH
039383,000595: 32,2340 03672 V(T1)/
039384,000596: 32,2341 57441 DOT DCOMP
039385,000597: 32,2342 03740 UR1/
039386,000598: 32,2343 41515 PDVL PUSH
039387,000599: 32,2344 63345 DLOAD PDVL
039388,000600: 32,2345 33531 ZERORTE
039389,000601: 32,2346 55441 DOT VDEF
039390,000602: 32,2347 03746 UH/
039391,000603: 32,2350 77772 VSL1
039392,000604: 32,2351 17405 STODL DELVLVC
039393,000605: 32,2352 03405 DELVLVC
039394,000606: 32,2353 57414 BOFF DCOMP
039395,000607: 32,2354 02741 RETROFLG
039396,000608: 32,2355 64357 RTD18
039397,000609: 32,2356 03405 STORE DELVLVC # NEGATE X COMPONENT, RETROGRADE
039398,000610: 32,2357 51575 RTD18 VLOAD ABVAL
039399,000611: 32,2360 03405 DELVLVC
039400,000612: 32,2361 27773 STOVL VGDISP
039401,000613: 32,2362 03656 R(T2)/
039402,000614: 32,2363 02657 STORE RVEC # ***** LANDING SITE COMPUTATION *****
039403,000615: 32,2364 45246 ABVAL DSU
039404,000616: 32,2365 33555 30480RTE
039405,000617: 32,2366 26760 STOVL RDESIRED
039406,000618: 32,2367 03710 V(T2)/
039407,000619: 32,2370 36746 STCALL VVEC
039408,000620: 32,2371 64277 TMRAD100 # R3,V3,T23 FROM TIMERAD
039409,000621: 32,2372 53575 VLOAD UNIT
039410,000622: 32,2373 03656 R(T2)/
039411,000623: 32,2374 53515 PDVL UNIT # UR3 PL06D
039412,000624: 32,2375 03710 V(T2)/
039413,000625: 32,2376 72441 DOT SL1 # GAMMAE=ARCSIN(UR3 . UV3) PL00D
039414,000626: 32,2377 65336 ARCSIN PDDL # V(T3) PL02D
039415,000627: 32,2400 00045 36D
039416,000628: 32,2401 51525 PDDL ABS
039417,000629: 32,2402 45006 PUSH CALL # /GAMMAE/ PL04D
039418,000630: 32,2403 64075 AUGEKUGL # PHIE PL06D
039419,000631: 32,2404 43215 DAD DAD
039420,000632: 32,2405 03724 T12 # T23
039421,000633: 32,2406 03736 T2
039422,000634: 32,2407 00003 STORE 02D # T(LS)=T2&T23&TE
039423,000635: 32,2410 53135 SLOAD BZE
039424,000636: 32,2411 03377 P37RANGE
039425,000637: 32,2412 64414 RTD22
039426,000638: 32,2413 00005 STORE 04D # OVERRIDE RANGE (PCR 261)
039427,000639: 32,2414 73545 RTD22 DLOAD SIN
039428,000640:
|
|
Page 904
|
039430,000642: 32,2415 00005 04D
039431,000643: 32,2416 17403 STODL LNG(SPL) # LNG(SPL)=SIN(PHIE) PL04D
039432,000644: 32,2417 77746 COS
039433,000645: 32,2420 03401 STORE LAT(SPL) # LAT(SPL)=COS(PHIE)
039434,000646: 32,2421 53575 VLOAD UNIT
039435,000647: 32,2422 03656 R(T2)/
039436,000648: 32,2423 41406 PUSH PUSH
039437,000649: 32,2424 53515 PDVL UNIT # PL22D
039438,000650: 32,2425 03710 V(T2)/
039439,000651: 32,2426 47315 PDVL VXV
039440,000652: 32,2427 53435 VXV UNIT # UH3=UNIT(UR3 X UV3 X UR3) PL10D
039441,000653: 32,2430 63361 VXSC PDVL
039442,000654: 32,2431 03403 LNG(SPL)
039443,000655: 32,2432 53361 VXSC VAD # PL04D
039444,000656: 32,2433 03401 LAT(SPL)
039445,000657: 32,2434 43014 CLEAR CLEAR # T(LS) IN MPAC
039446,000658: 32,2435 00662 ERADFLAG
039447,000659: 32,2436 01663 LUNAFLAG
039448,000660: 32,2437 16152 STODL ALPHAV # ALPHAV=UR3(COSPHIE)+UH3(SINPHIE) PL02D
039449,000661: 32,2440 77624 CALL
039450,000662: 32,2441 26370 LAT-LONG
039451,000663: 32,2442 77745 DLOAD
039452,000664: 32,2443 01104 LAT
039453,000665: 32,2444 17401 STODL LAT(SPL) # LATITUDE LANDING SITE *****
039454,000666: 32,2445 01106 LONG
039455,000667: 32,2446 37403 STCALL LNG(SPL) # LONGITUDE LANDING SITE *****
039456,000668: 32,2447 03762 SPRTEX
039457,000669: 32,2450 COUNT* $$/RTE
039458,000670:
|
|
Page 905
|
039460,000672: # INITIAL VECTOR SUBROUTINE
039461,000673:
039462,000674: # DESCRIPTION
039463,000675: # A PRECISION INTEGRATION OF THE STATE VECTOR TO THE TIME OF IGNITION IS PERFORMED. PRECOMPUTATIONS OCCUR.
039464,000676:
039465,000677: # CALLING SEQUENCE
039466,000678: # L CALL
039467,000679: # L+1 INVC100
039468,000680:
039469,000681: # NORMAL EXIT MODE
039470,000682: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
039471,000683:
039472,000684: # ALARM EXIT MODE
039473,000685: # AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 612 FOR STATE VECTOR IN MOONS SPHERE OF INFLUENCE
039474,000686:
039475,000687: # SUBROUTINES CALLED
039476,000688: # CSMPREC
039477,000689:
039478,000690: # ERASABLE INITIALIZATION REQUIRED
039479,000691: # PUSHLIST
039480,000692: # NONE
039481,000693: # MPAC
039482,000694: # NONE
039483,000695: # OTHER
039484,000696: # SPRTETIG TIME OF IGNITION DP B28 CS
039485,000697: # CSM STATE VECTOR
039486,000698:
039487,000699: # OUTPUT
039488,000700: # R(T1)/ INITIAL POSITION VECTOR AT TIG VECTOR B29 METERS
039489,000701: # V(T1)/ INITIAL VELOCITY VECTOR AT TIG VECTOR B7 METERS/CS
039490,000702: # T1 INITIAL VECTOR TIME (TIG) DP B28 CS
039491,000703: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039492,000704: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039493,000705: # CFPA COSINE OF INITIAL FLIGHT PATH ANGLE DP B1
039494,000706:
039495,000707: 32,2450 71220 INVC100 STQ DLOAD
039496,000708: 32,2451 03762 SPRTEX
039497,000709: 32,2452 03413 SPRTETIG
039498,000710: 32,2453 34041 STCALL TDEC1
039499,000711: 32,2454 27071 CSMPREC # PRECISION INTEGRATION R0,V0 TO R1,V1
039500,000712: 32,2455 67175 VLOAD SXA,2
039501,000713: 32,2456 00001 RATT
039502,000714: 32,2457 03755 P(T1)
039503,000715: 32,2460 27640 STOVL R(T1)/
039504,000716: 32,2461 00007 VATT
039505,000717: 32,2462 17672 STODL V(T1)/
039506,000718: 32,2463 00015 TAT
039507,000719: 32,2464 03716 STORE T1
039508,000720: 32,2465 53135 SLOAD BZE
039509,000721: 32,2466 03756 P(T1)
|
|
Page 906
|
039511,000723: 32,2467 64473 INVC109
039512,000724: 32,2470 52135 INVC107 SLOAD GOTO
039513,000725: 32,2471 33570 OCT612
039514,000726: 32,2472 74764 RTEALRM # R1,V1 NOT IN PROPER SPHERE OF INFLUENCE
039515,000727: 32,2473 53575 INVC109 VLOAD UNIT
039516,000728: 32,2474 03640 R(T1)/
039517,000729: 32,2475 17740 STODL UR1/ # UR1/ B1
039518,000730: 32,2476 00045 36D
039519,000731: 32,2477 27646 STOVL R(T1) # R(T1) B29
039520,000732: 32,2500 03672 V(T1)/
039521,000733: 32,2501 77656 UNIT
039522,000734: 32,2502 03746 STORE UV1/
039523,000735: 32,2503 72441 DOT SL1
039524,000736: 32,2504 03740 UR1/
039525,000737: 32,2505 03757 STORE CFPA # CFPA B1
039526,000738: 32,2506 45246 ABS DSU
039527,000739: 32,2507 33603 EPC1RTE
039528,000740: 32,2510 71240 BMN DLOAD
039529,000741: 32,2511 64520 INVC115 # NOT NEAR RECTILINEAR
039530,000742: 32,2512 33507 1RTEB2
039531,000743: 32,2513 41525 PDDL PUSH
039532,000744: 32,2514 33531 ZERORTE
039533,000745: 32,2515 41466 VDEF PUSH # N/ = (0,0,1)
039534,000746: 32,2516 77650 GOTO
039535,000747: 32,2517 64524 INVC120
039536,000748: 32,2520 47375 INVC115 VLOAD VXV
039537,000749: 32,2521 03740 UR1/
039538,000750: 32,2522 03746 UV1/
039539,000751: 32,2523 77606 PUSH # N/ = UR X UV B2
039540,000752: 32,2524 71214 INVC120 CLEAR DLOAD
039541,000753: 32,2525 02661 RETROFLG
039542,000754: 32,2526 51006 PUSH BPL
039543,000755: 32,2527 64533 INVC125
039544,000756: 32,2530 57575 VLOAD VCOMP # RETROGRADE ORBIT
039545,000757: 32,2531 43006 PUSH SET
039546,000758: 32,2532 02461 RETROFLG
039547,000759: 32,2533 77775 INVC125 VLOAD
039548,000760: 32,2534 53435 VXV UNIT
039549,000761: 32,2535 03740 UR1/
039550,000762: 32,2536 03746 STORE UH/ # UH/ B1
039551,000763: 32,2537 77650 GOTO
039552,000764: 32,2540 03762 SPRTEX
039553,000765:
|
|
Page 907
|
039555,000767: # PRECISION TRAJECTORY COMPUTATION SUBROUTINE
039556,000768:
039557,000769: # DESCRIPTION
039558,000770: # A NUMERICALLY INTEGRATED TRAJECTORY IS GENERATED WHICH FOR THE RETURN TO EARTH PROBLEM SATISFIES THE REENTRY
039559,000771: # CONSTRAINTS (RCON AND X(T2)) ACHIEVED BY THE INITIAL CONIC TRAJECTORY AND MEETS THE DVD REQUIREMENT AS CLOSELY
039560,000772: # AS POSSIBLE.
039561,000773:
039562,000774: # CALLING SEQUENCE
039563,000775: # L CALL
039564,000776: # L+1 PREC100
039565,000777:
039566,000778: # NORMAL EXIT MODE
039567,000779: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
039568,000780:
039569,000781: # ALARM EXIT MODE
039570,000782: # AT L+2 OF CALLING SEQUENCE WITH MPAC =
039571,000783: # OCTAL 605 FOR EXCESS ITERATIONS
039572,000784: # OCTAL 613 FOR REENTRY ANGLE OUT OF LIMITS
039573,000785:
039574,000786: # SUBROUTINES CALLED
039575,000787: # INTSTALL
039576,000788: # RTENCK2
039577,000789: # RTENCK3
039578,000790: # TIMERAD
039579,000791: # PARAM
039580,000792: # V2T100
039581,000793:
039582,000794: # ERASABLE INITIALIZATION REQUIRED
039583,000795: # PUSHLIST
039584,000796: # NONE
039585,000797: # MPAC
039586,000798: # NONE
039587,000799: # OTHER
039588,000800: # R(T1)/ INITIAL POSITION VECTOR VECTOR B29/B27 METERS
039589,000801: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
039590,000802: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
039591,000803: # T1 INITIAL VECTOR TIME DP B28 CS
039592,000804: # T12 INITIAL TO FINAL POSITION TIME DP B28 CS
039593,000805: # RCON CONIC FINAL RADIUS DP B29/B27 METERS
039594,000806: # R(T1) MAGNITUDE OF INITIAL POSITION VECTOR DP B29/B27 METERS
039595,000807: # X(T2) COTANGENT OF FINAL FLIGHT PATH ANGLE DP B0
039596,000808: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE DP B5
039597,000809: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
039598,000810: # MAMAX1 MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
039599,000811: # MAMAX2 MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
039600,000812: # UR1/ UNIT INITIAL VECTOR VECTOR B1
039601,000813: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
039602,000814: # BETA1 1+X(T2)**2 DP B1
039603,000815: # PHI2 PERIGEE OR APOGEE INDICATOR DP B2 -1 PERIGEE, +1 APOGEE
039604,000816:
|
|
Page 908
|
039606,000818:
039607,000819: # OUTPUT
039608,000820: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 METERS/CS
039609,000821: # R(T2)/ FINAL POSITION VECTOR VECTOR B29 METERS
039610,000822: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039611,000823: # T2 FINAL TIME DP B28 CENTISECONDS
039612,000824:
039613,000825: # DEBRIS
039614,000826: # RD FINAL R DESIRED DP B29/B27 METERS
039615,000827: # R/APRE R/A DP B6
039616,000828: # P/RPRE P/R DP B4
039617,000829: # RPRE MAGNITUDE OF R(T2)/ DP B29/B27 METERS
039618,000830: # X(T2)PRE COTANGENT OF GAMMA2 DP B0
039619,000831: # DT12 CORRECTION TO FINAL TIME T2 DP B28 CENTISECONDS
039620,000832: # RCON FINAL RADIUS DP B29/B27 METERS
039621,000833: # DRCON DELTA RCON DP B29/B27 METERS
039622,000834:
039623,000835: 32,2541 71220 PREC100 STQ DLOAD
039624,000836: 32,2542 03762 SPRTEX
039625,000837: 32,2543 33537 10RTE
039626,000838: 32,2544 17730 STODL NN1A
039627,000839: 32,2545 03636 RCON
039628,000840: 32,2546 03664 STORE RD
039629,000841: 32,2547 77745 PREC120 DLOAD
039630,000842: 32,2550 33547 2RTEB1
039631,000843: 32,2551 17650 STODL DT21PR # DT21PR = POSMAX
039632,000844: 32,2552 33535 M15RTE
039633,000845: 32,2553 37732 STCALL NN2
039634,000846: 32,2554 63726 RTENCK3
039635,000847: 32,2555 77624 PREC125 CALL
039636,000848: 32,2556 11634 PARAM
039637,000849: 32,2557 77745 DLOAD
039638,000850: 32,2560 02742 P
039639,000851: 32,2561 14033 STODL P/RPRE
039640,000852: 32,2562 02744 R1A
039641,000853: 32,2563 14035 STODL R/APRE
039642,000854: 32,2564 00041 R1
039643,000855: 32,2565 14031 STODL RPRE
039644,000856: 32,2566 03775 COGA
039645,000857: 32,2567 77661 SL
039646,000858: 32,2570 20206 5
039647,000859: 32,2571 03724 STORE X(T2)PRE
039648,000860: 32,2572 43276 DCOMP DAD
039649,000861: 32,2573 03726 X(T2)
039650,000862: 32,2574 45246 ABS DSU
039651,000863: 32,2575 33611 EPC4RTE
039652,000864: 32,2576 50000 BOV BMN
039653,000865: 32,2577 64601 PREC130
039654,000866: 32,2600 64770 PREC175
039655,000867:
039656,000868: # DESIRED REENTRY ANGLE NOT ACHIEVED
039657,000869:
|
|
Page 909
|
039659,000871: 32,2601 50145 PREC130 DLOAD BMN
039660,000872: 32,2602 03732 NN2
039661,000873: 32,2603 64607 PREC140
039662,000874: 32,2604 52135 PREC132 SLOAD GOTO # TOO MANY ITERATIONS
039663,000875: 32,2605 33567 OCT605 # EXIT WITH ALARM
039664,000876: 32,2606 65073 PRECX
039665,000877:
039666,000878: # DETERMINE RADIUS AT WHICH THE DESIRED REENTRY ANGLE WILL BE ACHIEVED
039667,000879:
039668,000880: 32,2607 53145 PREC140 DLOAD BZE
039669,000881: 32,2610 03730 NN1A
039670,000882: 32,2611 64647 PREC162
039671,000883: 32,2612 62545 PREC150 DLOAD SL2 # B2
039672,000884: 32,2613 00033 P/RPRE
039673,000885: 32,2614 72405 DMP SL1 # BETA2=BETA1*P/R B2 PL02
039674,000886: 32,2615 03754 BETA1
039675,000887: 32,2616 71206 PUSH DLOAD
039676,000888: 32,2617 00035 R/APRE
039677,000889: 32,2620 41212 SL4 DMP
039678,000890: 32,2621 00001 00D
039679,000891: 32,2622 50021 BDSU BMN # BETA3=1-BETA2*R/A
039680,000892: 32,2623 33513 1RTEB4
039681,000893: 32,2624 64637 PREC160
039682,000894: 32,2625 75512 PREC155 SL2 SQRT
039683,000895: 32,2626 44205 DMP BDSU
039684,000896: 32,2627 03761 PHI2
039685,000897: 32,2630 33511 1RTEB3
039686,000898: 32,2631 65301 NORM PDDL
039687,000899: 32,2632 00047 X1
039688,000900: 32,2633 56342 SR1 DDV # BETA4=BETA2/(1-PHI2*SQRT(BETA3))
039689,000901: 32,2634 52057 SL* GOTO # B1
039690,000902: 32,2635 20200 0 -1,1
039691,000903: 32,2636 64655 PREC165
039692,000904: 32,2637 60345 PREC160 DLOAD NORM
039693,000905: 32,2640 00035 R/APRE
039694,000906: 32,2641 00047 X1
039695,000907: 32,2642 53665 BDDV SL* # B1
039696,000908: 32,2643 33505 1RTEB1
039697,000909: 32,2644 20173 0 -6,1
039698,000910: 32,2645 77650 GOTO
039699,000911: 32,2646 64655 PREC165
039700,000912: 32,2647 60345 PREC162 DLOAD NORM
039701,000913: 32,2650 00031 RPRE
039702,000914: 32,2651 00047 X1
039703,000915: 32,2652 53665 BDDV SL* # BETA4=RD/RPRE B1
039704,000916: 32,2653 03664 RD
039705,000917: 32,2654 20200 0 -1,1
039706,000918: 32,2655 41401 PREC165 SETPD PUSH
039707,000919: 32,2656 00001 0
039708,000920: 32,2657 57425 DSU DCOMP
|
|
Page 910
|
039710,000922: 32,2660 33505 1RTEB1
039711,000923: 32,2661 03765 STORE BETA12
039712,000924: 32,2662 71240 BMN DLOAD
039713,000925: 32,2663 64674 PREC168
039714,000926: 32,2664 03724 X(T2)PRE
039715,000927: 32,2665 71240 BMN DLOAD
039716,000928: 32,2666 64672 PREC167
039717,000929: 32,2667 03765 BETA12
039718,000930: 32,2670 77676 DCOMP
039719,000931: 32,2671 03765 STORE BETA12
039720,000932: 32,2672 77745 PREC167 DLOAD
039721,000933: 32,2673 03765 BETA12
039722,000934: 32,2674 45246 PREC168 ABS DSU
039723,000935: 32,2675 33615 EPC6RTE
039724,000936: 32,2676 71240 BMN DLOAD
039725,000937: 32,2677 64770 PREC175
039726,000938: 32,2700 72405 DMP SL1
039727,000939: 32,2701 00031 RPRE
039728,000940: 32,2702 77606 PUSH # RF = NEW RADIUS
039729,000941: 32,2703 43345 PREC170 DLOAD DAD
039730,000942: 32,2704 03732 NN2
039731,000943: 32,2705 33527 1RTEB28
039732,000944: 32,2706 03732 STORE NN2
039733,000945: 32,2707 43175 VLOAD SET
039734,000946: 32,2710 03656 R(T2)/
039735,000947: 32,2711 03466 RVSW
039736,000948: 32,2712 26657 STOVL RVEC
039737,000949: 32,2713 03710 V(T2)/
039738,000950: 32,2714 77765 SIGN
039739,000951: 32,2715 03765 BETA12
039740,000952: 32,2716 16746 STODL VVEC
039741,000953: 32,2717 33505 1RTEB1
039742,000954: 32,2720 57565 SIGN DCOMP
039743,000955: 32,2721 03765 BETA12
039744,000956: 32,2722 71354 LXA,2 DLOAD
039745,000957: 32,2723 00154 MPAC
039746,000958: 32,2724 67140 LXC,1 SXA,2
039747,000959: 32,2725 03734 CONICX1
039748,000960: 32,2726 02756 SGNRDOT
039749,000961: 32,2727 36760 STCALL RDESIRED # COMPUTE DT12 (CORRECTION TO TIME OF
039750,000962: 32,2730 25556 TIMERAD # NEW RADIUS)
039751,000963: 32,2731 75345 DLOAD SIGN
039752,000964: 32,2732 00037 T
039753,000965: 32,2733 03765 BETA12
039754,000966: 32,2734 60325 PDDL NORM # DT21=(PHI4)DT21 PL02D
039755,000967: 32,2735 03650 DT21PR
039756,000968: 32,2736 00047 X1
039757,000969: 32,2737 53665 BDDV SL*
039758,000970: 32,2740 00001 00D
039759,000971: 32,2741 20176 0 -3,1
|
|
Page 911
|
039761,000973: 32,2742 50006 PUSH BMN # BETA13=(DT21)/(DT21PR) B3 PL04D
039762,000974: 32,2743 64750 PREC172
039763,000975: 32,2744 65345 DLOAD PDDL # BETA14=1 B0 PL04D
039764,000976: 32,2745 33547 2RTEB1
039765,000977: 32,2746 77650 GOTO
039766,000978: 32,2747 64752 PREC173
039767,000979: 32,2750 65345 PREC172 DLOAD PDDL # BETA14=.6 B0 PL04D
039768,000980: 32,2751 33541 M.6RTE
039769,000981: 32,2752 45271 PREC173 DDV DSU
039770,000982: 32,2753 00003 02D
039771,000983: 32,2754 33511 1RTEB3
039772,000984: 32,2755 71240 BMN DLOAD
039773,000985: 32,2756 64762 PREC174
039774,000986: 32,2757 77605 DMP
039775,000987: 32,2760 03650 DT21PR
039776,000988: 32,2761 00001 STORE 00D # DT21=(BETA14)DT21PR B28
039777,000989: 32,2762 41545 PREC174 DLOAD PUSH
039778,000990: 32,2763 00001 00D
039779,000991: 32,2764 37650 STCALL DT21PR
039780,000992: 32,2765 63710 RTENCK2
039781,000993: 32,2766 77650 GOTO
039782,000994: 32,2767 64555 PREC125
039783,000995: 32,2770 45345 PREC175 DLOAD DSU
039784,000996: 32,2771 00031 RPRE
039785,000997: 32,2772 03664 RD
039786,000998: 32,2773 51406 PUSH ABS # RPRE-RD = RERR
039787,000999: 32,2774 50025 DSU BMN
039788,001000: 32,2775 33617 EPC7RTE
039789,001001: 32,2776 34700 PREC220
039790,001002:
039791,001003: # DESIRED RADIUS HAS NOT BEEN ACHIEVED
039792,001004:
039793,001005: 32,2777 53145 DLOAD BZE
039794,001006: 32,3000 03730 NN1A
039795,001007: 32,3001 64604 PREC132 # TOO MANY ITERATIONS
039796,001008: 32,3002 53025 DSU BZE
039797,001009: 32,3003 33537 10RTE
039798,001010: 32,3004 65037 PREC207
039799,001011: 32,3005 45345 PREC205 DLOAD DSU # NOT FIRST PASS OF ITERATION
039800,001012: 32,3006 03670 RPRE'
039801,001013: 32,3007 00031 RPRE # RPRE,-RPRE B29/B27
039802,001014: 32,3010 55301 NORM BDDV
039803,001015: 32,3011 00050 X2
039804,001016: 32,3012 03666 DRCON
039805,001017: 32,3013 41457 SL* PUSH # DRCON/(RPRE,-RPRE)=S B2
039806,001018: 32,3014 57600 0 -2,2
039807,001019: 32,3015 40015 DAD BOV # S GR +4 OR LS -4
039808,001020: 32,3016 33505 1RTEB1
039809,001021: 32,3017 65024 PREC205M
039810,001022: 32,3020 45246 ABS DSU
|
|
Page 912
|
039812,001024: 32,3021 33505 1RTEB1
039813,001025: 32,3022 77640 BMN
039814,001026: 32,3023 65027 PREC206
039815,001027: 32,3024 57545 PREC205M DLOAD DCOMP # S GR 0 OR LS -4
039816,001028: 32,3025 33547 2RTEB1
039817,001029: 32,3026 77725 PDDL # S=-4 B2
039818,001030: 32,3027 41345 PREC206 DLOAD DMP
039819,001031: 32,3030 77712 SL2
039820,001032: 32,3031 03666 STORE DRCON # DRCON=S(RERR) B29
039821,001033: 32,3032 77615 DAD
039822,001034: 32,3033 03636 RCON
039823,001035: 32,3034 03636 STORE RCON # RCON+DRCON=RCON
039824,001036: 32,3035 77650 GOTO
039825,001037: 32,3036 65056 PREC210
039826,001038: 32,3037 63545 PREC207 DLOAD DSQ # FIRST PASS OF ITERATION
039827,001039: 32,3040 03664 RD
039828,001040: 32,3041 70501 NORM SR1
039829,001041: 32,3042 00047 X1
039830,001042: 32,3043 60325 PDDL NORM
039831,001043: 32,3044 00031 RPRE
039832,001044: 32,3045 00050 X2
039833,001045: 32,3046 55260 XSU,1 BDDV
039834,001046: 32,3047 00047 X2
039835,001047: 32,3050 77657 SR*
039836,001048: 32,3051 20600 0 -1,1
039837,001049: 32,3052 03636 STORE RCON # RD**2/RPRE=RCON
039838,001050: 32,3053 77625 DSU
039839,001051: 32,3054 03664 RD
039840,001052: 32,3055 03666 STORE DRCON # RCON-RD=DRCON
039841,001053: 32,3056 77745 PREC210 DLOAD # PREPARE FOR NEXT ITERATION
039842,001054: 32,3057 00031 RPRE
039843,001055: 32,3060 17670 STODL RPRE'
039844,001056: 32,3061 03730 NN1A
039845,001057: 32,3062 77625 DSU
039846,001058: 32,3063 33527 1RTEB28
039847,001059: 32,3064 37730 STCALL NN1A
039848,001060: 32,3065 65075 V2T100
039849,001061: 32,3066 52030 BHIZ GOTO
039850,001062: 32,3067 64547 PREC120
039851,001063: 32,3070 65073 PRECX
039852,001064:
039853,001065: # DESIRED RADIUS ACHIEVED
039854,001066:
039855,001067: 16,2000 SETLOC RTE2
039856,001068: 16,2000 BANK
039857,001069: 16,2700 45345 PREC220 DLOAD DSU
039858,001070: 16,2701 03726 X(T2)
039859,001071: 16,2702 03724 X(T2)PRE
039860,001072: 16,2703 45246 ABS DSU
039861,001073: 16,2704 34713 EPC8RTE
|
|
Page 913
|
039863,001075: 16,2705 67240 BMN SLOAD
039864,001076: 16,2706 65071 PREC225
039865,001077: 16,2707 34715 OCT613
039866,001078: 16,2710 77650 GOTO
039867,001079: 16,2711 65073 PRECX # IF REENTRY ANGLE OUT OF LIMITS
039868,001080:
039869,001081: 16,2712 00040 30447 EPC8RTE 2DEC .002
039870,001082:
039871,001083: 16,2714 00613 OCT613 OCT 613
039872,001084:
039873,001085: # DESIRED FINAL ANGLE HAS BEEN REACHED
039874,001086:
039875,001087: 32,2000 SETLOC RTE
039876,001088: 32,2000 BANK
039877,001089: 32,3071 77745 PREC225 DLOAD
039878,001090: 32,3072 33531 ZERORTE
039879,001091: 32,3073 77650 PRECX GOTO
039880,001092: 32,3074 03762 SPRTEX
039881,001093:
|
|
Page 914
|
039883,001095: # INTEGRATION CALLING SUBROUTINE
039884,001096:
039885,001097: # DESCRIPTION
039886,001098: # PERFORMS CONIC AND PRECISION INTEGRATIONS USING SUBROUTINE INTEGRVS. THERE ARE THREE ENTRANCES (RTENCK1,
039887,001099: # RTENCK2 AND RTENCK3) FOR DIFFERENT SOURCES OF INPUT AND DIFFERENT OPTIONS. THERE IS A COMMON SET OF OUTPUT
039888,001100: # WHICH INCLUDES SET UP OF INPUT FOR THE PARAM SUBROUTINE
039889,001101:
039890,001102: # RTENCK1 (CONIC INTEGRATION)
039891,001103:
039892,001104: # CALLING SEQUENCE
039893,001105: # L CALL
039894,001106: # L+1 RTENCK1
039895,001107:
039896,001108: # ERASABLE INITIALIZATION REQUIRED
039897,001109: # SAME AS FOR THE RTENCK3 ENTRANCE
039898,001110:
039899,001111: # RTENCK2 (PRECISION INTEGRATION)
039900,001112:
039901,001113: # CALLING SEQUENCE
039902,001114: # L CALL
039903,001115: # L+1 RTENCK2
039904,001116:
039905,001117: # ERASABLE INITIALIZATION REQUIRED
039906,001118: # PUSHLIST
039907,001119: # PUSHLOC-2 INTEGRATION TIME DT12 (CORRECTION TO T2) DP B28 CS
039908,001120: # OTHER
039909,001121: # R(T2)/ FINAL POSITION VECTOR VECTOR .B29 METERS
039910,001122: # V(T2)/ FINAL VELOCITY VECTOR VECTOR B7 METERS/CS
039911,001123: # T2 FINAL TIME DP B28 CS
039912,001124:
039913,001125: # RTENCK3 (PRECISION INTEGRATION)
039914,001126:
039915,001127: # CALLING SEQUENCE
039916,001128: # L CALL
039917,001129: # L+1 RTENCK3
039918,001130:
039919,001131: # ERASABLE INITIALIZATION REQUIRED
039920,001132: # R(T1)/ INITIAL POSITION VECTOR VECTOR B29 METERS
039921,001133: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7 M/CS
039922,001134: # T1 INITIAL VECTOR TIME DP B28 CS
039923,001135: # T2 FINAL TIME DP B28 CS
039924,001136:
039925,001137: # EXIT MODE
039926,001138: # AT L+2 OF CALLING SEQUENCE
039927,001139:
039928,001140: # SUBROUTINES CALLED
039929,001141: # INTSTALL
039930,001142: # INTEGRVS
039931,001143:
039932,001144: # OUTPUT
039933,001145: # PUSHLIST
|
|
Page 915
|
039935,001147: # PUSHLOC-6 FINAL POSITION VECTOR R(T2)/ VECTOR B29 METERS
039936,001148: # X1 CONICS MUTABLE ENTRY FOR EARTH (-2) SP B14
039937,001149: # MPAC
039938,001150: # FINAL VELOCITY VECTOR V(T2)/ VECTOR B7 M/CS
039939,001151: # OTHER
039940,001152: # R(T2)/ AS IN PUSHLIST
039941,001153: # V(T2)/ AS IN MPAC
039942,001154: # T2 FINAL TIME DP B28 CS
039943,001155:
039944,001156: 31,2000 SETLOC RTE3
039945,001157: 31,2000 BANK
039946,001158: 31,3700 45020 RTENCK1 STQ CALL
039947,001159: 31,3701 03733 RTENCKEX
039948,001160: 31,3702 27442 INTSTALL
039949,001161: 31,3703 43175 VLOAD SET
039950,001162: 31,3704 03640 R(T1)/
039951,001163: 31,3705 01473 INTYPFLG
039952,001164: 31,3706 77650 GOTO
039953,001165: 31,3707 63734 RTENCK3B
039954,001166:
039955,001167: 31,3710 45020 RTENCK2 STQ CALL
039956,001168: 31,3711 03733 RTENCKEX
039957,001169: 31,3712 27442 INTSTALL
039958,001170: 31,3713 77214 CLEAR VLOAD
039959,001171: 31,3714 01673 INTYPFLG
039960,001172: 31,3715 03656 R(T2)/
039961,001173: 31,3716 25535 STOVL RCV
039962,001174: 31,3717 03710 V(T2)/
039963,001175: 31,3720 15543 STODL VCV
039964,001176: 31,3721 03736 T2
039965,001177: 31,3722 01517 STORE TET
039966,001178: 31,3723 77615 DAD
039967,001179: 31,3724 77650 GOTO
039968,001180: 31,3725 63742 RTENCK3D
039969,001181:
039970,001182: 31,3726 45020 RTENCK3 STQ CALL
039971,001183: 31,3727 03733 RTENCKEX
039972,001184: 31,3730 27442 INTSTALL
039973,001185: 31,3731 43175 RTENCK3A VLOAD CLEAR
039974,001186: 31,3732 03640 R(T1)/
039975,001187: 31,3733 01673 INTYPFLG
039976,001188: 31,3734 25535 RTENCK3B STOVL RCV
039977,001189: 31,3735 03700 V2(T1)/
039978,001190: 31,3736 15543 STODL VCV
039979,001191: 31,3737 03716 T1
039980,001192: 31,3740 15517 STODL TET
039981,001193: 31,3741 03736 T2
|
|
Page 916
|
039983,001195: 31,3742 00041 RTENCK3D STORE TDEC1
039984,001196: 31,3743 45014 CLEAR CALL
039985,001197: 31,3744 00263 MOONFLAG
039986,001198: 31,3745 27135 INTEGRVS
039987,001199: 31,3746 77775 VLOAD
039988,001200: 31,3747 00001 RATT
039989,001201: 31,3750 03656 STORE R(T2)/
039990,001202: 31,3751 70125 PDDL LXC,1
039991,001203: 31,3752 00015 TAT
039992,001204: 31,3753 03734 CONICX1
039993,001205: 31,3754 27736 STOVL T2
039994,001206: 31,3755 00007 VATT
039995,001207: 31,3756 03710 STORE V(T2)/
039996,001208: 31,3757 77650 GOTO
039997,001209: 31,3760 03733 RTENCKEX
039998,001210: 32,2000 SETLOC RTE
039999,001211: 32,2000 BANK
040000,001212:
|
|
Page 917
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040002,001214: # V2(T1) COMPUTATION SUBROUTINE
040003,001215:
040004,001216: # DESCRIPTION
040005,001217: # A POST IMPULSE VELOCITY VECTOR (V2(T1)) IS COMPUTED WHICH EITHER
040006,001218: # (1) MEETS THE INPUT VELOCITY CHANGE DESIRED (RTEDVD) IN A MINIMUM TIME OR
040007,001219: # (2) IF A VELOCITY CHANGE ISN:T SPECIFIED (RTEDVD) = 0), A V2(T1) IS COMPUTED WHICH MINIMIZES THE IMPULSE (DV)
040008,001220: # AND CONSEQUENTLY FUEL.
040009,001221:
040010,001222: # CALLING SEQUENCE
040011,001223: # L CALL
040012,001224: # L+1 V2T100
040013,001225:
040014,001226: # NORMAL EXIT MODE
040015,001227: # AT L+2 OF CALLING SEQUENCE WITH MPAC = 0
040016,001228:
040017,001229: # ALARM EXIT MODE
040018,001230: # AT L+2 OF CALLING SEQUENCE WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS
040019,001231:
040020,001232: # SUBROUTINES CALLED
040021,001233: # GAMDV10
040022,001234: # XT1LIM
040023,001235: # DVCALC
040024,001236:
040025,001237: # ERASABLE INITIALIZATION REQUIRED
040026,001238: # PUSHLIST
040027,001239: # NONE
040028,001240: # MPAC
040029,001241: # NONE
040030,001242: # OTHER
040031,001243: # R(T1) MAGNITUDE OF INITIAL POSITION VECTOR DP B29/B27 METERS
040032,001244: # RCON MAGNITUDE OF FINAL POSITION VECTOR DP B29/B27 METERS
040033,001245: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040034,001246: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
040035,001247: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040036,001248: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040037,001249: # X(T2) COTANGENT OF FINAL FLIGHT PATH ANGLE DP B0
040038,001250: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (INPUT FOR PREC) DP B5
040039,001251: # CFPA COSINE OF INITIAL FLIGHT PATH ANGLE DP B1
040040,001252: # MAMAX1 MAJOR AXIS LIMIT FOR LOWER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
040041,001253: # MAMAX2 MAJOR AXIS LIMIT FOR UPPER BOUND ON GAMDV ITERATOR DP B30/B28 METERS
040042,001254: # PHI2 REENTRY NEAR PERIGEE OR APOGEE INDICATE (RTE ONLY) DP B2 -1 PERIGEE, +1 APOGEE
040043,001255: # N1 CONIC OR PRECISION ITERATION COUNTER DP B28 NEGATIVE CONIC,PLUS PREC
040044,001256:
040045,001257: # OUTPUT
040046,001258: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040047,001259: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040048,001260: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (POST IMPULSE) DP B5
040049,001261: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040050,001262: # BETA1 1+X(T2)**2 DP B1
040051,001263:
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Page 918
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040053,001265:
040054,001266: # DEBRIS
040055,001267: # PUSHLIST
040056,001268: # 00D X(T1),,=PREVIOUS PRECISION X(T1) DP B5
040057,001269: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040058,001270: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040059,001271: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040060,001272: # 10D X(T1)MIN=LOWER BOUND ON X(T1) IN GAMDV ITERATOR DP B5
040061,001273: # 12D DX(T1)MAX=MAXIMUM DELTA X(T1) DP B5
040062,001274: # 14D X(T1)MAX=UPPER BOUND ON X(T1) IN GAMDV ITERATOR DP B5
040063,001275: # 16D DX(T1)=ITERATOR INCREMENT DP B5
040064,001276: # 31D GAMDV10 SUBROUTINE RETURN ADDRESS
040065,001277: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040066,001278: # 33D V2T100 SUBROUTINE RETURN ADDRESS
040067,001279:
040068,001280: 32,3075 71220 V2T100 STQ DLOAD
040069,001281: 32,3076 00041 33D
040070,001282: 32,3077 03636 RCON
040071,001283: 32,3100 45240 BMN DSU # ABORT IF RCON NEGATIVE
040072,001284: 32,3101 65105 V2TERROR
040073,001285: 32,3102 03646 R(T1)
040074,001286: 32,3103 77640 BMN
040075,001287: 32,3104 65110 V2T101
040076,001288: 32,3105 77776 V2TERROR EXIT # OR IF LAMBDA LESS THAN ONE
040077,001289: 32,3106 05721 TC POODOO # NO SOLUTION IF LAMBDA LESS THAN 1
040078,001290: 32,3107 00610 OCT 00610
040079,001291: 32,3110 43001 V2T101 SETPD CLEAR
040080,001292: 32,3111 00001 0 # PL00D
040081,001293: 32,3112 00272 F2RTE
040082,001294: 32,3113 60345 DLOAD NORM
040083,001295: 32,3114 03636 RCON
040084,001296: 32,3115 00047 X1
040085,001297: 32,3116 60325 PDDL NORM
040086,001298: 32,3117 03646 R(T1)
040087,001299: 32,3120 00051 S1
040088,001300: 32,3121 00013 STORE 10D
040089,001301: 32,3122 56342 SR1 DDV # R1/RCON = LAMBDA B1
040090,001302: 32,3123 65260 XSU,1 PDDL # PL02D
040091,001303: 32,3124 00050 S1
040092,001304: 32,3125 03726 X(T2)
040093,001305: 32,3126 77716 DSQ
040094,001306: 32,3127 43342 SR1 DAD
040095,001307: 32,3130 33505 1RTEB1
040096,001308: 32,3131 03754 STORE BETA1 # 1+X(T2)**2 = BETA1 B1
040097,001309: 32,3132 77605 DMP
040098,001310: 32,3133 00001 00D
040099,001311: 32,3134 00035 STORE 28D # BETAI*LAMBDA = BETA5
040100,001312: 32,3135 53605 DMP SL*
040101,001313: 32,3136 00001 00D
040102,001314: 32,3137 20172 0 -7,1
040103,001315: 32,3140 45257 SL* DSU
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Page 919
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040105,001317: 32,3141 20172 0 -7,1
040106,001318: 32,3142 33523 1RTEB17
040107,001319: 32,3143 65234 RTB PDDL # BETA5*LAMBDA-1 = THETA1 B17 PL05D
040108,001320: 32,3144 45565 TPMODE
040109,001321: 32,3145 33505 1RTEB1
040110,001322: 32,3146 57457 SR* DCOMP
040111,001323: 32,3147 20601 0,1
040112,001324: 32,3150 41215 DAD DMP
040113,001325: 32,3151 00001 00D
040114,001326: 32,3152 03646 R(T1)
040115,001327: 32,3153 47057 SL* RTB
040116,001328: 32,3154 20172 0 -7D,1
040117,001329: 32,3155 45565 TPMODE
040118,001330: 32,3156 77725 PDDL # 2*R(T1)*(LAMBDA-1)=THETA2 B38/B36 PL08D
040119,001331: 32,3157 33637 RTMURTE
040120,001332: 32,3160 70501 NORM SR1
040121,001333: 32,3161 00050 X2
040122,001334: 32,3162 56264 XSU,2 DDV
040123,001335: 32,3163 00050 S1
040124,001336: 32,3164 00013 10D
040125,001337: 32,3165 65257 SR* PDDL # MU**.5/R(T1)=THETA3 B-4/B-5 PL10D
040126,001338: 32,3166 57170 6,2
040127,001339: 32,3167 03652 MAMAX1
040128,001340: 32,3170 41406 PUSH PUSH # MAMAX1=MA
040129,001341: 32,3171 77624 CALL
040130,001342: 32,3172 65734 XT1LIM
040131,001343: 32,3173 41476 DCOMP PUSH # X(T1)MIN B5 PL12D
040132,001344: 32,3174 40476 DCOMP SR4
040133,001345: 32,3175 41525 PDDL PUSH # DX(T1)MAX B5 PL14D
040134,001346: 32,3176 03654 MAMAX2
040135,001347: 32,3177 45006 PUSH CALL
040136,001348: 32,3200 65734 XT1LIM
040137,001349: 32,3201 50125 PDDL BMN # X(T1)MAX B5 PL16D
040138,001350: 32,3202 03730 NN1A
040139,001351: 32,3203 65206 V2T102
040140,001352: 32,3204 77650 GOTO
040141,001353: 32,3205 65220 V2T110
040142,001354:
040143,001355: # PROCEED HERE IF NOT PRECISION COMPUTATION
040144,001356:
040145,001357: 32,3206 77745 V2T102 DLOAD
040146,001358: 32,3207 03632 RTEDVD
040147,001359: 32,3210 52054 BZE GOTO
040148,001360: 32,3211 65213 V2T105
040149,001361: 32,3212 65314 V2T140
040150,001362: 32,3213 50145 V2T105 DLOAD BMN
040151,001363: 32,3214 03757 CFPA
040152,001364: 32,3215 65314 V2T140
040153,001365: 32,3216 77650 GOTO
040154,001366: 32,3217 65322 V2T145
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Page 920
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040156,001368: # DURING A PRECISION TRAJECTORY ITERATION CONSTRAIN THE INDEPENDENT
040157,001369: # VARIABLE TO INSURE THAT ALL CONICS PASS THROUGH RCON ON THE SAME PASS
040158,001370: # THROUGH X(T2)
040159,001371:
040160,001372: 32,3220 47145 V2T110 DLOAD RTB
040161,001373: 32,3221 33523 1RTEB17
040162,001374: 32,3222 45565 TPMODE
040163,001375: 32,3223 65276 DCOMP PDDL # -1 B17 PL19D
040164,001376: 32,3224 33547 2RTEB1
040165,001377: 32,3225 45257 SR* DSU
040166,001378: 32,3226 20601 0,1
040167,001379: 32,3227 00001 00D
040168,001380: 32,3230 53605 DMP SL*
040169,001381: 32,3231 00035 28D
040170,001382: 32,3232 20172 0 -7,1
040171,001383: 32,3233 76257 SL* TAD
040172,001384: 32,3234 20172 0 -7,1
040173,001385: 32,3235 65234 RTB PDDL # BETA5(2-LAMBDA)-1=BETA6 B17 PL19D
040174,001386: 32,3236 45565 TPMODE
040175,001387: 32,3237 03722 X(T1)
040176,001388: 32,3240 00001 STORE 00D # X(T1),, B5
040177,001389: 32,3241 77751 TLOAD # PL16D
040178,001390: 32,3242 53040 BMN BZE
040179,001391: 32,3243 65250 V2T115
040180,001392: 32,3244 65250 V2T115
040181,001393: 32,3245 52061 SL GOTO
040182,001394: 32,3246 20210 7
040183,001395: 32,3247 65261 V2T120
040184,001396: 32,3250 50145 V2T115 DLOAD BMN
040185,001397: 32,3251 03761 PHI2
040186,001398: 32,3252 65272 V2T125
040187,001399: 32,3253 77676 DCOMP
040188,001400: 32,3254 17761 STODL PHI2
040189,001401: 32,3255 33537 10RTE
040190,001402: 32,3256 03730 STORE NN1A
040191,001403: 32,3257 77650 GOTO
040192,001404: 32,3260 65272 V2T125
040193,001405: 32,3261 47166 V2T120 SQRT RTB
040194,001406: 32,3262 45716 DPMODE
040195,001407: 32,3263 50125 PDDL BMN # BETA6**.5=X(T1)LIM B5 PL18D
040196,001408: 32,3264 03761 PHI2
040197,001409: 32,3265 65300 V2T130
040198,001410: 32,3266 45545 DLOAD STADR # PL16D
040199,001411: 32,3267 77760 STORE 14D # X(T1)LIM = X(T1)MAX
040200,001412: 32,3270 77676 DCOMP
040201,001413: 32,3271 00013 STORE 10D # -X(T1)LIM = X(T1)MIN
040202,001414: 32,3272 53145 V2T125 DLOAD BZE
040203,001415: 32,3273 03722 X(T1)
040204,001416: 32,3274 65314 V2T140
040205,001417: 32,3275 52040 BMN GOTO
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Page 921
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040207,001419: 32,3276 65314 V2T140
040208,001420: 32,3277 65322 V2T145
040209,001421: 32,3300 53145 V2T130 DLOAD BZE
040210,001422: 32,3301 03722 X(T1)
040211,001423: 32,3302 65311 V2T135
040212,001424: 32,3303 71240 BMN DLOAD # PL16D
040213,001425: 32,3304 65311 V2T135
040214,001426: 32,3305 77626 STADR
040215,001427: 32,3306 77764 STORE 10D # X(T1)LIM = X(T1)MIN
040216,001428: 32,3307 77650 GOTO
040217,001429: 32,3310 65322 V2T145
040218,001430: 32,3311 57545 V2T135 DLOAD DCOMP # PL16D
040219,001431: 32,3312 77626 STADR
040220,001432: 32,3313 77760 STORE 14D # -X(T1)LIM = X(T1)MAX
040221,001433: 32,3314 77745 V2T140 DLOAD
040222,001434: 32,3315 00013 10D
040223,001435: 32,3316 17722 STODL X(T1) # X(T1)MIN = X(T1)
040224,001436: 32,3317 00015 12D
040225,001437: 32,3320 52006 PUSH GOTO # DX(T1)MAX = DX(T1) PL18D
040226,001438: 32,3321 65327 V2T150
040227,001439: 32,3322 77745 V2T145 DLOAD
040228,001440: 32,3323 00017 14D
040229,001441: 32,3324 17722 STODL X(T1) # X(T1)MAX = X(T1)
040230,001442: 32,3325 00015 12D
040231,001443: 32,3326 41476 DCOMP PUSH # -DX(T1)MAX = DX(T1) PL18D
040232,001444: 32,3327 77624 V2T150 CALL # GOTO X(T1)-DV ITERATOR
040233,001445: 32,3330 65457 GAMDV10
040234,001446: 32,3331 53145 DLOAD BZE # EXIT IF MINIMUM FUEL MODE
040235,001447: 32,3332 03632 RTEDVD
040236,001448: 32,3333 65455 V2T1X
040237,001449:
040238,001450: # CONTINUE IF TIME CRITICAL MODE
040239,001451:
040240,001452: 32,3334 50025 DSU BMN
040241,001453: 32,3335 03706 DV
040242,001454: 32,3336 65341 V2T155
040243,001455: 32,3337 77650 GOTO
040244,001456: 32,3340 65374 V2T175
040245,001457: 32,3341 50145 V2T155 DLOAD BMN
040246,001458: 32,3342 03730 NN1A
040247,001459: 32,3343 65346 V2T160
040248,001460: 32,3344 77650 GOTO
040249,001461: 32,3345 65416 V2T185
040250,001462:
040251,001463: # CONIC TRAJECTORY COMPUTATION
040252,001464:
040253,001465: 32,3346 53145 V2T160 DLOAD BZE
040254,001466: 32,3347 03722 X(T1)
040255,001467: 32,3350 65354 V2T165
040256,001468: 32,3351 52040 BMN GOTO
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Page 922
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040258,001470: 32,3352 65354 V2T165
040259,001471: 32,3353 65453 V2T300
040260,001472: 32,3354 53145 V2T165 DLOAD BZE
040261,001473: 32,3355 03757 CFPA
040262,001474: 32,3356 65453 V2T300
040263,001475: 32,3357 71240 BMN DLOAD
040264,001476: 32,3360 65453 V2T300
040265,001477: 32,3361 00017 14D
040266,001478: 32,3362 17722 STODL X(T1) # X(T1)MAX=X(T1)
040267,001479: 32,3363 00015 12D
040268,001480: 32,3364 77676 DCOMP
040269,001481: 32,3365 34021 STCALL 16D # -DX(T1)MAX=DX(T1)
040270,001482: 32,3366 65457 GAMDV10
040271,001483: 32,3367 45345 DLOAD DSU
040272,001484: 32,3370 03632 RTEDVD
040273,001485: 32,3371 03706 DV
040274,001486: 32,3372 77640 BMN
040275,001487: 32,3373 65453 V2T300
040276,001488: 32,3374 71214 V2T175 SET DLOAD
040277,001489: 32,3375 00072 F2RTE
040278,001490: 32,3376 03722 X(T1)
040279,001491: 32,3377 77614 BOFF
040280,001492: 32,3400 02742 SLOWFLG
040281,001493: 32,3401 65406 V2T177
040282,001494: 32,3402 14013 STODL 10D # X(T1)MIN
040283,001495: 32,3403 00015 12D # DX(T1)MAX
040284,001496: 32,3404 77650 GOTO
040285,001497: 32,3405 65411 V2T179
040286,001498: 32,3406 14017 V2T177 STODL 14D
040287,001499: 32,3407 00015 12D
040288,001500: 32,3410 77676 DCOMP
040289,001501: 32,3411 34021 V2T179 STCALL 16D # DX(T1)
040290,001502: 32,3412 65457 GAMDV10
040291,001503: 32,3413 50145 DLOAD BMN
040292,001504: 32,3414 03730 NN1A
040293,001505: 32,3415 65453 V2T300
040294,001506:
040295,001507: # PREVENT A LARGE CHANGE IN INDEPENDENT VARIABLE DURING AN ITERATION FOR A
040296,001508: # PRECISION TRAJECTORY
040297,001509:
040298,001510: 32,3416 45345 V2T185 DLOAD DSU
040299,001511: 32,3417 03722 X(T1)
040300,001512: 32,3420 00001 00D
040301,001513: 32,3421 65246 ABS PDDL # /X(T1)-X(T1),,/ = BETA7
040302,001514: 32,3422 00015 12D
040303,001515: 32,3423 44352 SL1 BDSU
040304,001516: 32,3424 71240 BMN DLOAD
040305,001517: 32,3425 65453 V2T300
040306,001518: 32,3426 00001 00D # CONTINUE IF BETA7 LARGER THAN 2DX(T1)MAX
040307,001519: 32,3427 03722 STORE X(T1) # X(T1),, = X(T1)
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Page 923
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040309,001521: 32,3430 50025 DSU BMN
040310,001522: 32,3431 00017 14D
040311,001523: 32,3432 65440 V2T195
040312,001524: 32,3433 77745 DLOAD
040313,001525: 32,3434 00017 14D
040314,001526: 32,3435 03722 STORE X(T1) # X(T1)MAX = X(T1)
040315,001527: 32,3436 77650 GOTO
040316,001528: 32,3437 65451 V2T205
040317,001529: 32,3440 45345 V2T195 DLOAD DSU
040318,001530: 32,3441 03722 X(T1)
040319,001531: 32,3442 00013 10D
040320,001532: 32,3443 52040 BMN GOTO
040321,001533: 32,3444 65446 V2T200
040322,001534: 32,3445 65451 V2T205
040323,001535: 32,3446 77745 V2T200 DLOAD
040324,001536: 32,3447 00013 10D
040325,001537: 32,3450 03722 STORE X(T1) # X(T1)MIN = X(T1)
040326,001538: 32,3451 77624 V2T205 CALL
040327,001539: 32,3452 65660 DVCALC
040328,001540: 32,3453 77745 V2T300 DLOAD
040329,001541: 32,3454 33531 ZERORTE
040330,001542: 32,3455 77650 V2T1X GOTO
040331,001543: 32,3456 00041 33D
040332,001544:
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Page 924
|
040334,001546: # X(T1)-DV ITERATOR SUBROUTINE
040335,001547:
040336,001548: # DESCRIPTION
040337,001549: # COMPUTES A POST IMPULSE VELOCITY VECTOR (V2(T1)) WHICH REQUIRES A MINIMUM DV.
040338,001550:
040339,001551: # CALLING SEQUENCE
040340,001552: # L CALL
040341,001553: # L+1 GAMDV10
040342,001554:
040343,001555: # NORMAL EXIT MODE
040344,001556: # AT L+2 OF CALLING SEQUENCE
040345,001557:
040346,001558: # ALARM EXIT MODE
040347,001559: # AT V2T1X WITH MPAC = OCTAL 605 FOR EXCESS ITERATIONS
040348,001560:
040349,001561: # SUBROUTINES CALLED
040350,001562: # DVCALC
040351,001563:
040352,001564: # ERASABLE INITIALIZATION REQUIRED
040353,001565: # PUSHLIST
040354,001566: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040355,001567: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040356,001568: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040357,001569: # 10D X(T1)MIN=LOWER BOUND ON INDEPENDENT VARIABLE X(T1) DP B5
040358,001570: # 12D DX(T1)MAX=MAXIMUM DX(T1) DP B5
040359,001571: # 14D X(T1)MAX=UPPER BOUND ON INDEPENDENT VARIABLE X(T1) DP B5
040360,001572: # 16D DX(T1)=ITERATOR INCREMENT DP B5
040361,001573: # MPAC
040362,001574: # NONE
040363,001575: # OTHER
040364,001576: # V(T1)/ INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040365,001577: # RTEDVD DELTA VELOCITY DESIRED DP B7/B5 METERS/CS
040366,001578: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040367,001579: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040368,001580: # X(T1) COTANGENT OF INITIAL FLIGHT PATH ANGLE (FROM VERTICAL) DP B5
040369,001581: # F2RTE TIME CRITICAL OR MINIMUM FUEL MODE INDICATOR STATE AREA 0 MIN. FUEL, 1 MIN. TIME
040370,001582:
040371,001583: # OUTPUT
040372,001584: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040373,001585: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040374,001586: # X(T1) COTANGENT OF INITIAL FPA MEASURED FROM VERTICAL DP B5
040375,001587: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040376,001588:
040377,001589: # DEBRIS
040378,001590: # PUSHLIST
040379,001591: # 00D X(T1),,
040380,001592: # 02D THETA1
040381,001593: # 05D THETA2
040382,001594: # 08D THETA3
040383,001595: # 10D X(T1)MIN
040384,001596: # 12D DX(T1)MAX
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Page 925
|
040386,001598: # 14D X(T1)MAX
040387,001599: # 16D DX(T1)
040388,001600: # 22D DV,=PREVIOUS DV DP B7/B5
040389,001601: # 24D BETA9=X(T1)+1.1DX(T1) DP B5
040390,001602: # 31D GAMDV10 SUBROUTINE RETURN ADDRESS
040391,001603: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040392,001604: # 33D V2T100 SUBROUTINE RETURN ADDRESS
040393,001605:
040394,001606: 32,3457 77620 GAMDV10 STQ
040395,001607: 32,3460 00037 31D
040396,001608: 32,3461 45001 SETPD CALL
040397,001609: 32,3462 00023 18D # PL18D
040398,001610: 32,3463 65660 DVCALC
040399,001611: 32,3464 45345 DLOAD DSU
040400,001612: 32,3465 00017 14D
040401,001613: 32,3466 00013 10D
040402,001614: 32,3467 77600 BOV
040403,001615: 32,3470 65510 GAMDV20
040404,001616: 32,3471 45206 PUSH DSU # X(T1)MAX-X(T1)MIN=BETA8 B5 PL20D
040405,001617: 32,3472 33621 EPC9RTE
040406,001618: 32,3473 71240 BMN DLOAD
040407,001619: 32,3474 65656 GAMDVX # BOUNDS CLOSE TOGETHER
040408,001620: 32,3475 00023 18D
040409,001621: 32,3476 50025 DSU BMN # BETA8-DX(T1)MAX
040410,001622: 32,3477 00015 12D
040411,001623: 32,3500 65504 GAMDV15
040412,001624: 32,3501 52001 SETPD GOTO # PL18D
040413,001625: 32,3502 00023 18D
040414,001626: 32,3503 65510 GAMDV20
040415,001627: 32,3504 77745 GAMDV15 DLOAD # PL18D
040416,001628: 32,3505 70565 SIGN SR1
040417,001629: 32,3506 00021 16D
040418,001630: 32,3507 00021 STORE 16D # BETA8(SIGNDX(T1))/2=DX(T1)
040419,001631: 32,3510 77745 GAMDV20 DLOAD
040420,001632: 32,3511 33533 M144RTE
040421,001633: 32,3512 03732 STORE NN2
040422,001634: 32,3513 43345 GAMDV25 DLOAD DAD
040423,001635: 32,3514 03732 NN2
040424,001636: 32,3515 33527 1RTEB28
040425,001637: 32,3516 67240 BMN SLOAD
040426,001638: 32,3517 65523 GAMDV30
040427,001639: 32,3520 33567 OCT605
040428,001640: 32,3521 77650 GOTO
040429,001641: 32,3522 65455 V2T1X
040430,001642: 32,3523 03732 GAMDV30 STORE NN2 # NN2=NN2+1
040431,001643: 32,3524 65345 DLOAD PDDL # X(T1)=X(T1), B5 PL20D
040432,001644: 32,3525 03722 X(T1)
040433,001645: 32,3526 03706 DV
040434,001646: 32,3527 43325 PDDL DAD # DV=DV, B7/B5 PL22D
040435,001647: 32,3530 03722 X(T1)
040436,001648: 32,3531 00021 16D
|
|
Page 926
|
040438,001650: 32,3532 37722 STCALL X(T1) # X(T1)+DX(T1)=X(T1) B5
040439,001651: 32,3533 65660 DVCALC
040440,001652: 32,3534 71214 BON DLOAD
040441,001653: 32,3535 00312 F2RTE
040442,001654: 32,3536 65552 GAMDV35
040443,001655: 32,3537 03706 DV
040444,001656: 32,3540 50025 DSU BMN # CONTINUE IF FUEL CRITICAL MODE
040445,001657: 32,3541 00025 20D
040446,001658: 32,3542 65547 GAMDV33
040447,001659: 32,3543 57545 GAMDV32 DLOAD DCOMP
040448,001660: 32,3544 00021 16D
040449,001661: 32,3545 77742 SR1
040450,001662: 32,3546 00021 STORE 16D
040451,001663: 32,3547 52001 GAMDV33 SETPD GOTO
040452,001664: 32,3550 00023 18D # PL18D
040453,001665: 32,3551 65615 GAMDV50
040454,001666:
040455,001667: # TIME CRITICAL MODE
040456,001668:
040457,001669: 32,3552 45345 GAMDV35 DLOAD DSU
040458,001670: 32,3553 03632 RTEDVD
040459,001671: 32,3554 03706 DV
040460,001672: 32,3555 41525 PDDL PUSH # DVD-DV=DVERR B7/B5 PL22D
040461,001673: 32,3556 51545 GAMDV40 DLOAD ABS # DV, PL24D
040462,001674: 32,3557 00025 20D
040463,001675: 32,3560 50025 DSU BMN
040464,001676: 32,3561 33623 EPC10RTE
040465,001677: 32,3562 65656 GAMDVX
040466,001678: 32,3563 71204 GAMDV45 BOVB DLOAD
040467,001679: 32,3564 57352 TCDANZIG # ASSURE OVFIND IS 0
040468,001680: 32,3565 60221 BDSU NORM
040469,001681: 32,3566 03706 DV
040470,001682: 32,3567 00050 X2
040471,001683: 32,3570 77725 PDDL # DV-DV, B7/B5-N2 PL22D
040472,001684: 32,3571 70501 NORM SR1 # DVERR B8/B6-N1
040473,001685: 32,3572 00047 X1
040474,001686: 32,3573 65271 DDV PDDL # DVERR/ DV - DV
040475,001687: 32,3574 41221 BDSU DMP # PL18D
040476,001688: 32,3575 03722 X(T1)
040477,001689: 32,3576 77660 XSU,1
040478,001690: 32,3577 00047 X2
040479,001691: 32,3600 00021 STORE 16D # PRESERVE SIGN IF OVERFLOW
040480,001692: 32,3601 40057 SR* BOV
040481,001693: 32,3602 20600 0 -1,1
040482,001694: 32,3603 65611 GAMDV47
040483,001695: 32,3604 00021 STORE 16D # (X(T1)-X(T1),)DVERR/(DV-DV,)=DX(T1)
040484,001696: 32,3605 45246 ABS DSU
040485,001697: 32,3606 00015 12D
040486,001698: 32,3607 77640 BMN
040487,001699: 32,3610 65615 GAMDV50
|
|
Page 927
|
040489,001701: 32,3611 75345 GAMDV47 DLOAD SIGN
040490,001702: 32,3612 00015 12D
040491,001703: 32,3613 00021 16D
040492,001704: 32,3614 00021 STORE 16D # DX(T1)MAX(SIGNDX(T1))=DX(T1)
040493,001705:
040494,001706: # CHECK TO KEEP INDEPENDENT VARIABLE IN BOUNDS
040495,001707:
040496,001708: 32,3615 41345 GAMDV50 DLOAD DMP
040497,001709: 32,3616 00021 16D
040498,001710: 32,3617 33543 1.1RTEB1
040499,001711: 32,3620 43352 SL1 DAD
040500,001712: 32,3621 03722 X(T1)
040501,001713: 32,3622 00031 STORE 24D # X(T1)+1.1DX(T1)=BETA9 B5
040502,001714: 32,3623 50025 DSU BMN
040503,001715: 32,3624 00017 14D
040504,001716: 32,3625 65634 GAMDV55
040505,001717: 32,3626 45345 DLOAD DSU
040506,001718: 32,3627 00017 14D
040507,001719: 32,3630 03722 X(T1)
040508,001720: 32,3631 77742 SR1
040509,001721: 32,3632 34021 STCALL 16D # (X(T1)MAX-X(T1))/2=DX(T1) B5
040510,001722: 32,3633 65647 GAMDV65
040511,001723: 32,3634 45345 GAMDV55 DLOAD DSU
040512,001724: 32,3635 00031 24D
040513,001725: 32,3636 00013 10D
040514,001726: 32,3637 52040 BMN GOTO
040515,001727: 32,3640 65642 GAMDV60
040516,001728: 32,3641 65647 GAMDV65
040517,001729: 32,3642 45345 GAMDV60 DLOAD DSU
040518,001730: 32,3643 00013 10D
040519,001731: 32,3644 03722 X(T1)
040520,001732: 32,3645 77742 SR1
040521,001733: 32,3646 00021 STORE 16D # (X(T1)MIN-X(T1))/2=DX(T1) B5
040522,001734: 32,3647 51545 GAMDV65 DLOAD ABS
040523,001735: 32,3650 00021 16D
040524,001736: 32,3651 50025 DSU BMN
040525,001737: 32,3652 33621 EPC9RTE
040526,001738: 32,3653 65656 GAMDVX
040527,001739: 32,3654 77650 GOTO
040528,001740: 32,3655 65513 GAMDV25
040529,001741: 32,3656 77650 GAMDVX GOTO
040530,001742: 32,3657 00037 31D
040531,001743:
|
|
Page 928
|
040533,001745: # DV CALCULATION SUBROUTINE
040534,001746:
040535,001747: # INPUT
040536,001748: # PUSHLIST
040537,001749: # 02D THETA1=BETA5*LAMBDA-1 TP B17
040538,001750: # 05D THETA2=2*R(T1)*(LAMBDA-1) TP B38/B36
040539,001751: # 08D THETA3=MU**.5/R(T1) DP B-4/B-5
040540,001752: # OTHER
040541,001753: # X(T1) COTANGENT OF POST IMPULSE INITIAL FLIGHT PATH ANGLE DP B5
040542,001754: # V(T1)/ INITIAL VELOCITY VECTOR (PRE IMPULSE) VECTOR B7/B5 METERS/CS
040543,001755: # UR1/ UNIT INITIAL VECTOR VECTOR B1
040544,001756: # UH/ UNIT HORIZONTAL VECTOR VECTOR B1
040545,001757:
040546,001758: # OUTPUT
040547,001759: # V2(T1)/ POST IMPULSE INITIAL VELOCITY VECTOR VECTOR B7/B5 METERS/CS
040548,001760: # DV INITIAL VELOCITY CHANGE DP B7/B5 METERS/CS
040549,001761: # PCON SEMI-LATUS RECTUM DP B28/B26 METERS
040550,001762:
040551,001763: # DEBRIS
040552,001764: # 28D THETA3*PCON**.5 DP B10/B8-N1
040553,001765: # C(PUSLOC) THETA3(PCON**.5)*X(T1)*UR1/ VECTOR B7/B5
040554,001766: # 32D DVCALC SUBROUTINE RETURN ADDRESS
040555,001767: # X1 NORMALIZATION FACTOR FOR VALUE IN 28D
040556,001768:
040557,001769: # PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING DVCALC
040558,001770:
040559,001771: 32,3660 71220 DVCALC STQ DLOAD
040560,001772: 32,3661 00040 32D
040561,001773: 32,3662 03722 X(T1)
040562,001774: 32,3663 54316 DSQ SR
040563,001775: 32,3664 20610 7
040564,001776: 32,3665 76276 DCOMP TAD
040565,001777: 32,3666 00003 02D
040566,001778: 32,3667 41501 NORM PUSH
040567,001779: 32,3670 00047 X1
040568,001780: 32,3671 60351 TLOAD NORM
040569,001781: 32,3672 00006 05D
040570,001782: 32,3673 00050 X2
040571,001783: 32,3674 70434 RTB SR1
040572,001784: 32,3675 45716 DPMODE
040573,001785: 32,3676 56264 XSU,2 DDV
040574,001786: 32,3677 00046 X1
040575,001787: 32,3700 77657 SR*
040576,001788: 32,3701 57170 6,2
040577,001789: 32,3702 03720 STORE PCON # THETA2/(THETA1-X(T1)**2)=PCON B28/26
040578,001790: 32,3703 41366 SQRT DMP
040579,001791: 32,3704 00011 08D
040580,001792: 32,3705 77701 NORM
040581,001793: 32,3706 00047 X1
040582,001794: 32,3707 14035 STODL 28D # THETA3*PCON**.5 B10/B8 -N1
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|
Page 929
|
040584,001796: 32,3710 03722 X(T1)
040585,001797: 32,3711 74301 NORM VXSC
040586,001798: 32,3712 00050 X2
040587,001799: 32,3713 03740 UR1/ # X(T1)*UR1/ B5+B1 -N2
040588,001800: 32,3714 74274 XAD,2 VXSC
040589,001801: 32,3715 00046 X1
040590,001802: 32,3716 00035 28D
040591,001803: 32,3717 63257 VSR* PDVL # THETA3(PCON**.5)X(T1)*UR1/ B7/B5
040592,001804: 32,3720 57207 0 -9D,2 # +
040593,001805: 32,3721 03746 UH/
040594,001806: 32,3722 53761 VXSC VSR* # THETA3(PCON**.5)UH/ B7/B5
040595,001807: 32,3723 00035 28D
040596,001808: 32,3724 20575 0 -4,1 # =
040597,001809: 32,3725 45455 VAD STADR
040598,001810: 32,3726 74077 STORE V2(T1)/ # V2(T1)/ B7/B5
040599,001811: 32,3727 51451 VSU ABVAL
040600,001812: 32,3730 03672 V(T1)/
040601,001813: 32,3731 03706 STORE DV # ABVAL(V2(T1)/-V1(T)/)=DV B7/B5
040602,001814: 32,3732 77650 GOTO
040603,001815: 32,3733 00040 32D
040604,001816:
|
|
Page 930
|
040606,001818: # SUBROUTINE TO COMPUTE BOUNDS ON INDEPENDENT VARIABLE X(T1)
040607,001819:
040608,001820: # INPUT
040609,001821: # PUSHLIST
040610,001822: # PUSHLOC -4 MAJOR AXIS (MA) DP B30/B28
040611,001823: # PUSHLOC -2 MAJOR AXIS (MA) AGAIN DP B30/B28
040612,001824: # 28D BETA5=LAMBDA*BETA1 DP B9
040613,001825: # OTHER
040614,001826: # RCON DP B29/B27
040615,001827: # R(T1) DP B29/B27
040616,001828:
040617,001829: # OUTPUT
040618,001830: # MPAC
040619,001831: # X(T1)LIM LIMIT ON INDEPENDENT VARIABLE X(T1) DP B5
040620,001832:
040621,001833: # DEBRIS
040622,001834: # PUSHLIST
040623,001835: # C(PUSHLOC) MA-RCON DP (B30/28)-N1
040624,001836: # C(PSHLOC)+2 MA DP B30/B28
040625,001837: # X1 NORMALIZATION FACTOR FOR MA-RCON
040626,001838: # 20D XT1LIM SUBROUTINE RETURN ADDRESS
040627,001839:
040628,001840: # PUSHLOC IS RESTORED TO ITS ENTRANCE VALUE UPON EXITING XT1LIM
040629,001841:
040630,001842: 32,3734 71220 XT1LIM STQ DLOAD
040631,001843: 32,3735 00024 20D
040632,001844: 32,3736 03636 RCON
040633,001845: 32,3737 44342 SR1 BDSU
040634,001846: 32,3740 65301 NORM PDDL # MA-RCON B30-N1
040635,001847: 32,3741 00050 X2
040636,001848: 32,3742 70525 PDDL SR1
040637,001849: 32,3743 03646 R(T1)
040638,001850: 32,3744 56221 BDSU DDV
040639,001851: 32,3745 41257 SL* DMP
040640,001852: 32,3746 57601 0 -3,2 # B3
040641,001853: 32,3747 00035 28D
040642,001854: 32,3750 45257 SL* DSU # BETA10=BETA5(MA-RT)/(MA-RC)-1 B11
040643,001855: 32,3751 20173 0 -6,1
040644,001856: 32,3752 33526 1RTEB25 +1 # 1.0 B-11
040645,001857: 32,3753 40152 SL1 BOV
040646,001858: 32,3754 65760 XT1LIM2 # B10
040647,001859: 32,3755 52040 BMN GOTO
040648,001860: 32,3756 65764 XT1LIM5
040649,001861: 32,3757 65762 XT1LIM3
040650,001862: 32,3760 77745 XT1LIM2 DLOAD # BETA10=POSMAX IF OVERFLOW
040651,001863: 32,3761 33547 2RTEB1
040652,001864: 32,3762 52166 XT1LIM3 SQRT GOTO # X(T1)=SQRT(BETA10) B5
040653,001865: 32,3763 65766 XT1LIMX
040654,001866: 32,3764 77745 XT1LIM5 DLOAD
040655,001867: 32,3765 33531 ZERORTE
040656,001868: 32,3766 77650 XT1LIMX GOTO
040657,001869: 32,3767 00024 20D
040658,001870:
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|
Page 931
|
040660,001872: # CONSTANTS FOR THE P37 AND P70 PROGRAMS AND SUBROUTINES
040661,001873:
040662,001874: 36,3242 BANK 36
040663,001875: 35,2000 SETLOC RTECON1
040664,001876: 35,2000 BANK
040665,001877:
040666,001878: 35,3504 20000 00000 1RTEB1 2DEC 1. B-1
040667,001879: 35,3506 10000 00000 1RTEB2 2DEC 1. B-2
040668,001880: 35,3510 04000 00000 1RTEB3 2DEC 1. B-3
040669,001881: 35,3512 02000 00000 1RTEB4 2DEC 1. B-4
040670,001882: 35,3514 00020 00000 1RTEB10 2DEC 1. B-10
040671,001883: 35,3516 00004 00000 1RTEB12 2DEC 1. B-12
040672,001884: 35,3520 00002 00000 1RTEB13 2DEC 1. B-13
040673,001885: 35,3522 00000 04000 1RTEB17 2DEC 1. B-17
040674,001886: 35,3524 00000 00010 1RTEB25 2DEC 1. B-25
040675,001887: # * * B25 AND B28 MUST BE CONSECUTIVE * *
040676,001888: 35,3526 00000 00001 1RTEB28 2DEC 1. B-28
040677,001889: 35,3530 00000 00000 ZERORTE 2DEC 0 B-28
040678,001890: 35,3532 77777 77557 M144RTE 2DEC -144. B-28
040679,001891: 35,3534 77777 77760 M15RTE 2DEC -15 B-28
040680,001892: 35,3536 00000 00012 10RTE 2DEC 10 B-28
040681,001893: 35,3540 54631 63145 M.6RTE 2DEC -.6
040682,001894: 35,3542 21463 06315 1.1RTEB1 2DEC 1.1 B-1
040683,001895: 35,3544 77777 77771 M6RTEB28 2DEC -6 B-28
040684,001896: 35,3546 37777 37777 2RTEB1 2OCT 3777737777
040685,001897: 35,3550 77777 77766 M9RTEB28 2DEC -9 B-28
040686,001898: 35,3552 77777 77767 M8RTEB28 2DEC -8 B-28
040687,001899: 35,3554 00000 35610 30480RTE 2DEC 30480. B-29
040688,001900: 35,3556 37405 12250 VCSPS 2DEC 31.510396 B-5 # (SEE 2VEXHUST)
|
|
Page 932
|
040690,001902: 35,3560 33041 37714 VCRCS 2DEC 27.0664 B-5
040691,001903: 35,3562 00003 13241 MDOTRCS 2DEC .0016375 B-3
040692,001904: 35,3564 20000 00000 CSUBT 2DEC .5
040693,001905: 35,3566 00605 OCT605 OCT 00605
040694,001906: 35,3567 00612 OCT612 OCT 00612
040695,001907: 35,3570 40214 45266 MCOS7.5 2DEC -.99144486
040696,001908: 35,3572 73645 56536 MSIN7.5 2DEC -.13052619
040697,001909: 35,3574 70467 71205 MCOS22.5 2DEC -.92387953 B-2
040698,001910: 35,3576 16525 12525 THETA165 2DEC .4583333333
040699,001911: 35,3600 22525 12525 THETA210 2DEC .5833333333
040700,001912: 35,3602 17775 06676 EPC1RTE 2DEC .99966 B-1
040701,001913: 35,3604 00000 00062 EPC2RTE 2DEC 100. B-29
040702,001914: 35,3606 00020 14223 EPC3RTE 2DEC .001
040703,001915: 35,3610 00000 05174 EPC4RTE 2DEC .00001
040704,001916: 35,3612 00002 21727 EPC5RTE 2DEC .01 B-6
040705,001917: 35,3614 00000 01654 EPC6RTE 2DEC .000007 B-1
040706,001918: 35,3616 00000 00764 EPC7RTE 2DEC 1000. B-29
040707,001919: 35,3620 00000 00010 EPC9RTE 2DEC 1. B-25
040708,001920: 35,3622 00000 00322 EPC10RTE 2DEC .0001 B-7
040709,001921:
040710,001922: 35,3624 BANK 35
040711,001923: 35,2000 SETLOC RTECON1
040712,001924: 35,2000 BANK
040713,001925:
040714,001926: 35,3624 75725 75417 C4RTE 2DEC -6.986643 E7 B-30
040715,001927: 35,3626 00325 23740 K1RTE 2DEC 7. E6 B-29
040716,001928: 35,3630 00306 06614 K2RTE 2DEC 6495000. B-29
040717,001929: 35,3632 76027 70156 K3RTE 2DEC -.06105
040718,001930: 35,3634 74517 54131 K4RTE 2DEC -.10453
040719,001931: 35,3636 30276 05001 RTMURTE 2DEC 199650.501 B-18
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|
Page 933
|
040721,001933: 35,3640 00003 27040 E3RTE 2DEC 121920. B-29
040722,001934:
End of include-file P37,P70.agc. Parent file is MAIN.agc