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THIS f} f L/~(WILL INDICATE THAT YOU ARE ENTERING YOUR f~ fLZ~VALUE IN TERMS OF EARTH RADII.) f:~ f $n j ! kLz~ER  u i fw~ mL~  }f  L~  }f WILL BE DIRECTLY TO THE LEFT f| f L|OF THE EARTH AS DRAWN HERE. f| f LL$}#HOW FAR OUT FROM THE CENTER OF THE f} f L[}(EARTH DO YOU WISH THE LAUNCH SITE TO BE? f2} f L}&(YOUR ANSWER WILL BE ASSUMED TO BE IN fi} f L}%KILOMETERS' THE EARTH AS DRAWN HERE f{ f L d kn   sL|!YOU WILL BE LAUNCHING FROM A SPOT f{ f L6| LOCATED 126 MILLION METERS FROM f| f Le| THE EARTH. THAT IS ONE THIRD OF fD| f L|!THE WAY TO THE MOON. THE LAUNCH fs| f L|!SITE z mLLPy    s Lz$YOU WILL BE LAUNCHING FROM THE 'TOP' fz f L{$SURFACE OF THE EARTH ,AS DRAWN HERE. fz f L    s Le{"YOU WILL BE LAUNCHING FROM A SPACE fB{ f L{ STATION LOCATED ONE EARTH RADIUS fs{ f L{'ABOVE S=SPACE STATION fy f Ly D=DEEP SPACE fy f Lz C=YOU CHOOSE A SPOT fy f L#z Q=QUIT PROGRAM fz f $n j kL?zE 2i f=z mLzLWzS 2i fUz mL-{LozD 2i fmz mL{LzC 2i fz mL|LzQ 2i fx KM/SEC fx f LxELAPSED TIME: fx f @ d c i # c  i ^oLx HRS fx f $nL5y&PRESS RETURN OR ENTER: C=CLEAR Q=QUIT fy j ! k  ` i !` g ؂LqySELECT LAUNCH LOCATION: fYy f Ly E=EARTH LAUNCH fy f Ly m ݃ m= m ݃ Y %m= mLw m ݃ eLt ;o Ql` , !mLx , !mL1xL)xTARGET SATELLITE HIT. fx f B 5o j r mLtxLfxYOU NEVER REALLY GOT STARTED! fHx f LyLx CRASH AT fwx f у Ń Ą # ^oL= m ݃ Y %m= mLv m m ݃ e m ۂ #   # ڃ z %mL w i )Lw ք !mLw m 1 m e @ M U X [ # + [  #  m 1 m e . !mLw ݃ !mLw )Lw m Y %m= :   l у  mLu у A у  %mLu D ALu fu f D # ^o ol у Ń Ą # c i ^o 9 ol  q # c i ^oL^v f[v f LnvN 3 2i flv mLv m Y %m= m ݃ m؂ v  ڃ  ) g ' 5o j ] g 0 d Ao kn 5 d ;o Ql 8 ; %mL4u 8 D !mLw 8 M !mL#u o 8 V !mL4u o ۂ ҂  w z t t ҂ c i  c i I " : ˃ ΃ L : у : Ղ ؂ ` ӄ ޅ † PLsL  ` i fs mLs u ӄ P ` Å i   ̅  DŽ ~ \ ݆ e ˆ ɂ h Ƃ  2 z ` X Ԇ lLt%HEADING SPEED (KM/SEC) R (E.R.) fbt f ;o Ԇ Ql m  f Lr N=NO PATH LEFT fr f $n j 5 k LrSELECT TARGET SATELLITE: fr f L%s G = GEOSYNCHRONOUS f s f LRs L = LARGE ORBIT SATELLITE f3s f Lns N = NONE f`s f $n j  k ӄLsG  ` i fs mLsqD ) 2i fq mLq ) =LqF ) 2i fq mLq =LqDLqF ) 2i fq m ) 2i fq m= mLqL3rSELECT SATELLITE TRAIL: fr f Lgr" D=DOTS LEFT SHOWING SATELLITE fDr f Lr POSITION EVERY fur f @ ^oLr SEC. fr  2i fp mLLAp  fLpBLOAD SIMPLE NOISE.OBJ0 fp f  fL qBLOAD RAMP NOISE.OBJ0 fp f ` X lL8qSELECT GRAPHICS MODE: f"q f Lbq D=DETAILED AND SLOW fIq f Lq F=FAST AND LESS DETAILED fpq f $n j + k Lo ` ooo< L2p @ ߄ D ȃ ΃ @ ߄ D 5o` @ ߄ D ˃ ΃ @ ߄ D 5o` s p q Py   Vt wLOpS  2i fMp mLhp L8pLmpR  2i fkp mLp L;pLpC  2i fp mLp L>pLpQ          D4107 bNb *****,b MAIN PROGRAMGbj3000: SET CONSTANTSebt1500: LOAD BINARY FILESb~2000: SELECT GRAPHICS b5000: SELECT LAUNCH SITEb5800: DRAW LAUNCH SITEb5900: ENTER LAUNCH VALUESb4000: GRAPHICS c IN SCIENCE CLASSES,a 1000: MAIN PROGRAM8a *****Sa THRUSTER SUBROUTINESka SLOW DOWN ROUTINEaVXVXTDV(AN)aVYVYTDV(AN)a4107: THRUSTER NOISEaa!a& SPEED UP ROUTINEa0VXVXTDV(AN)a:VYVYTDV(AN)b4` ORBIT II - COPYRIGHT 1983, VERNIER SOFTWAREg` THE LINE BELOW IS USED BY THE TASC COMPILER`! INTEGER J,XP,YP,XT,YT,MX,MY,ZE,TFa THIS PROGRAM COMES WITH A 20 PAGE MANUAL WITH COMPLETE INSTRUCTIONS AND SUGGESTIONS FOR USING THE PROGRAM        LZLݵܵߵ޵ ^`8ܵ i B8` LֵȱB׵` DȑB׵Bֵ յյ``y¹?`wa_LʬOˬ̬čPQ` H hBLµ* `Loõĵֵ׵ Rĵµѭ H hBLL B ڬ L -յյµ% `õĵֵ׵ Rĵµ˭ B ڬ yLe{Le}LaoLaoLaoLeLeLeLeLe8L|d8L|d8L|d8L|d8L|d8L|dLaoLao LeLeLaoLaoLaoLao$Lao)Lao.Lao3Lao8Lao=Le?LaoDLaoILaoNLaoSLaoXLao]LaobLedLefLaokLemLaorLaowLeLaoLaoLaoLeLaoLaoLaoLeLaoLaoLeLeLeLeLeLeLeLaoLeLaoLeLaoLaoLaoLaoLaoLaoLeLaoLaoLaoLaoLeLaoLaoLao LeLaoLeLeLeBLaoGLaoLLaoQLaoVLao[Lao`LaoeLaojLaooLaotLaoyLao~LaoLeLaoLaoLaoLe Ql  fLRUN MENU f f L`kL`k@ IV"@#)iK > (e. H54g4  hinص z ?rsvJe~=Laof $n j k  %m Յ m= mLLIMPROPER VALUE, SELECT AGAIN f܀ f L[ ʄ LA&ENTER LAUNCH ANGLE (SEE DIAGRAM ABOVE) f f $n j k  ΃ ` ;o ` Ql h ;o q Ql T ;o o   v  m m e m e m e m e`  mL[L(LAST LAUNCH AT: V = f f Ą ^oLG ANGLE = f< f  ^o L{ENTER LAUNCH SPEED IN KM/SEC f^ f L(TYPICAL VALUES:4 TO 14) f c ʄ i   s  %mL.L~&YOUR PROPOSED LAUNCH SITE IS 'INSIDE' f~ f L THE EARTH! CHOOSE AGAIN. f f L|  _ mLLe"YOUR PROPOSED LAUNCH SITE WOULD BE fB f LOFF THE SCREEN. CHOOSE AGAIN. fs f L|` K 5~~@CC0xx? "FCC@a0x?p`|a  pp@p@  ppp~@   DpD @DD p@ @ `0 `?*U*U*U*U*U ?"D~@C@a00xxp`|a  ?pp@p@  0@?xpp@? |  pDBD @D@ @ @ `0 xj*U*U*U*U*U L~@C@a00xx  pp@p@?  @`{pp@@  F  pDBD x80 Os?~~~@00x? @ `0 \**U*U*U*U*U  H@@C@a000             GREETINGS PROGRAM9D$(4): CHR$(4)IS CNTRL D MASTER DISKETTE CREATED ON SEPTEMBER 28, 1983 BY DAVID L. VERNIER:49234,0: SET UP FULL SCREEN PAGE ONE GRAPHICSD$;"BLOAD ORBIT LOGO, A$2000"#(D$;"RUN MENU"2  x@@C@a000 H`w~~@00x? @y~`~0  @x`pp@@    0DD@  pGp|p~@c @  @ 8p@~``|a `w `@CC@a0` 0 Nr@CC@a00  @y~`~0  @<@|pp@@ @   88|  `pxp|@C p  @  @ `0  @CC@a0` 0 BBw@CC@a00  0  @|pp@@ `    @   @ `0 |w ~~@CC0xx? BBCC@a0x? 0  |pp@@ 0 `pp|@   8D@p<88   @ `0 ~ OFFERED5D "HERE IS A TASK WHICH YOU ARE TO ACCOM-`N "PLISH USING THIS SIMULATION PROGRAM.S "FOR EXAMPLE, CHALLENGE 2 IS TO OBTAINU "A CIRCULAR ORBIT BY LAUNCHING FROM AV "SPACE STATION 6370 KM ABOVE THE EARTH.W X "WHEN YOU SELECTVE' HGR2E:'HD$;"RUN ORBIT II"-MK AUTOMATIC DEMONSTRATION]D$;"EXEC C0"ciT  ========================= CHALLENGE INSTRUCTIONS & " GENERAL CHALLENGE INSTRUCTIONS0 : "EACH OF THE NINE 'CHALLENGES'EC C8" !l TDRS CHALLENGE3vD$;"EXEC C9"9{P MANUAL OPERATIONX:28589: START COMPILED VERSION OF MAIN PROGRAM4 MANUAL OPERATION (BASIC)>103,1:104,96:24576,0: SET POINTERS SO THAT THE PROGRAM IS LOADED 'ABOCHRONOUS ORBIT D$;"EXEC C3"&#;x EARTH LAUNCHMD$;"EXEC C4"Sm TELSTAR SATTELITED$;"EXEC C5"@ ESCAPE VELOCITYJD$;"EXEC C6"O CAPTURED$;"EXEC C7" ORBITAL TRANSFERD$;"EX100GM1100,1200,1300,1400,1500,1600,1700,1800,1900,2000,2100,2200P100] *****} AUTOMATIC DEMONSTRATIOND$;"EXEC C0"L STABLE ORBITVD$;"EXEC C1"[ CIRCULAR ORBITD$;"EXEC C2" GEOSYN419: IF A MANUAL MODE IS SELECTED, SKIP THE INSTRUCTION SCREEN :49234,0:D$;"BLOAD I";M;",A$2000": LOAD THE APPROPRIATE INSTRUCTION SCREEN Q$: WAIT FOR A RETURN TO ALLOW TIME TO READ INSTRUCTIONS BEFORE GOING INTO THE CHALLENGEM12ATELLITE)0 ,"10 = MANUAL OPERATION (COMPILED)T 6"11 = MANUAL OPERATION (BASIC)w @"12 = AUTOMATIC DEMONSTRATION}  M$:M(M$) M0İ3000:100: IF MODE 0 IS SELECTED DISPLAY GENERAL INSTRUCTION TEXT AND THE RETURN TO MAIN MENUB M93 = CHALLENGE 3 (GEOSYNCHRONOUS ORBIT)K "4 = CHALLENGE 4 (EARTH LAUNCH)q "5 = CHALLENGE 5 (TELSTAR ORBIT) "6 = CHALLENGE 6 (ESCAPE VELOCITY) "7 = CHALLENGE 7 (CAPTURE) "8 = CHALLENGE 8 (ORBITAL TRANSFER) "9 = CHALLENGE 9 (TDRS S% z" ORBIT II MENU PROGRAMR {:" COPYRIGHT 1983, VERNIER SOFTWAREZ |: "SELECT MODE OF OPERATION BY NUMBER:" "0 = CHALLENGE INSTRUCTIONS "1 = CHALLENGE 1 (STABLE ORBIT) "2 = CHALLENGE 2 (CIRCULAR ORBIT)& "D SCREEN MOVER.OBJ0": LOAD MACHINE LANGUAGE ROUTINE TO MOVE IMAGES FROM PAGE 2 TO PAGE 1 <D$;"BLOAD RUNTIME,A 24576": LOAD ROUTINES USED BY COMPILED VERSION OF THE PROGRAM FD$;"BLOAD ORBIT II.OBJ": COMPILED PROGRAM d n: x5$ ORBIT II MENU PROGRAMFD$(4): CHR$(4) IS CNTRL D(769)32(775)31(16461)48(24576)32100: SKIP LOADING FILES IF THEY ARE ALREADY LOADED(D$;"BLOAD BACKGROUND,A$4000": LOAD BACKGROUND SCREEN GRAPHICSY 2D$;"BLOA        @pqpp@@ ` p8pAbޙץ,,stHʈcbhH ʈpoophMm X RQtPsh`bhH     " @``@5a $$ 8>"Bxp?Dd    )B  @5 @?q d$`""B DD   B?GC8 q!$CAND LESS DETAILEDeG$epe G$"D"T180: TIME BETWEEN POSITION CALCULATIONS IN DETAILED GRAPHICS MODEeG$"F"T600: FAST GRAPHICS MODEe G$"D"G$"F"2000e4"SELECT SATELLITE TRAIL:"e>eH" D=DOTS LEFT SHOWING SATELLITEMd *****0d LOAD NECESSARY BINARY FILESRdD$;"BLOAD SIMPLE NOISE.OBJ0"rd"D$;"BLOAD RAMP NOISE.OBJ0"xdld *****d ENTER INITIAL CHOICESd:10d"SELECT GRAPHICS MODE:"dd" D=DETAILED AND SLOWe" F=FAST 4704: EXIT ROUTINEEcQ$"S"ĉ:1150: CHANGE GRAPHICS STYLE qcQ$"R"ĉ:1160: CHANGE LAUNCH SITE cQ$"C"ĉ:1170: CLEAR SCREEN cQ$"Q"9000: QUITc1180: ON RETURN OR ANYTHING ELSE, LAUNCH AGAINd END OF MAIN PROGRA,$` L( L5 LD 8 XL XLR XQHPH RPhPhQ8 XL.0'L+ LfLLLLL ꥪLYԨéR L ,-` Leh8PhHQH`hbihciHHb\ȱb]`ߚl hhHHHH`L⥠`ʆ  hdheHdHHHH08  X Xhdhe + eHdHHHeHdH`   q% 0 L0`,wyywxzzx,Hyw wȄffȪ yw fh0`h&Hwyxzwy wy h Lh` ` ` ` 憅` ` ᥠQP` L  8e`LԩLcغh8uhHvH` L L L~ 憅 L ʊ8$!  W$Li)$` LY L   hPhQP 8ePQiHHš`hh PȱPʘHH` ,խwqq膸 J즸 , :hhlP,q`h8uhv] :  ڢ hgʆbcb KLf/q ߠ :۩q` S0 L,Hh*Mȱڦhwx%ȱH J hw0У8 ewwx𴰺 抦5?wtsʆwx8dedЕБt Z Z ,խvqq ", ȹ,ȹ ,W,qewix8 Z ZCBЍw U  yUUwyVxz`Зԥwyxz`ywzx`GH o8 UpVUVƠ UVUʆoph3]eУk ЮU 4Г U 5,wЅƩѤ wU! 5B=ooppȆbcĂbfUVd8ophLД8= 7MLdlkȄmn;op:E UUȥViлh8HH`Ї{y SՠUEowyywxzzxwIy:e \`fH,Hops8otpf,kiUliVU$f&łmUŁfbUȥcUUŭUVŮMvłGUŁ>UV2ЅUŕȱU喰!UUdUV0*UiUViVUmVnɊȢwU𧰸ХyyUU⥁œ.QP$  e LWHhL:5~    eȱeLaL LRwwxȆwxwHw Jhw`w5U,w`,hbhcbwȱbxcȘHH`wȄ wep`0CBe]Q=b`LicbbbE0`Ġ``MMLeڢD ! SL3LH h%LddЉ`?0 HH chh ޥ Yަ`н  eE   ࠰>Ffee0  &ߢEX$ƫv` ꥪLYDcbbwyȱbxz`ݥܦL+3UV UwȱUx`wUȥxU`Ncbbȱb`cbbȥb`cbbȱb8塅堅PEncbbȱbe HH`0S,,hdehUhVhhHHU hehHehUU HHk`UiȱUiuкe& & &eeHHqUȥqUeFdO݅܆`ycbbȱbƫ8pM䡥YOUR ANSWER WILL BE ASSUMED TO BE IN Qu"KILOMETERS UNLESS YOU ADD THE LETTERS~u"'ER' AT THE END OF YOUR ENTRY. THIS "u"WILL INDICATE THAT YOU ARE ENTERING YOUR";u"VALUE IN TERMS OF EARTH RADII.)uuQ$/v(Q$,2)"ER"XS(Q$)AY TO THE MOON. THE LAUNCH DtT"SITE WILL BE DIRECTLY TO THE LEFTgt^"OF THE EARTH AS DRAWN HERE."qtr5590t| YOU PICK A LAUNCH SITE ROUTINEt"HOW FAR OUT FROM THE CENTER OF THE "t"EARTH DO YOU WISH THE LAUNCH SITE TO BE?";t%u"(STATION LOCATED ONE EARTH RADIUS"Hs"'ABOVE' THE EARTH AS DRAWN HERE"Rs5590ks DEEP SPACE LAUNCH|s"XS126:YS0s,"YOU WILL BE LAUNCHING FROM A SPOT"s6"LOCATED 126 MILLION METERS FROM"s@"THE EARTH. THAT IS ONE THIRD OFtJ"THE WNCH rW5rZ"YOU WILL BE LAUNCHING FROM THE 'TOP'"ar_"SURFACE OF THE EARTH ,AS DRAWN HERE."kr5590r SPACE STATION LAUNCHrXS0:YS2RE: THIS PLACES THE LAUNCH SITE 2 EARTH RADII OUTrr"YOU WILL BE LAUNCHING FROM A SPACE!s"STATION!q" D=DEEP SPACE "Aq" C=YOU CHOOSE A SPOT"\q" Q=QUIT PROGRAM"dqL$uqL$"E"5200qL$"S"5300qL$"D"5400qL$"C"5500qL$"Q"9000qO5000qP EARTH LAUNCH ROUTINErUXS0:YSRE: FOR EARTH LAU ";pL(TJ36)100;" HRS"Np"PRESS RETURN OR ENTER: C=CLEAR Q=QUIT ";Q$]pQ$(Q$,1)cppp *****p SELECT LAUNCH SITEpX(0): MEMORY HOUSECLEANINGp"SELECT LAUNCH LOCATION:pp" E=EARTH LAUNCH"q" S=SPACE RGET SATELLITE HIT. ";2o.4096: EXPLOSION NOISEo3J24920: IF THE SATELLITE HAS TRAVELED MORE THAN 2 INTERVALS, SKIP THE NEXT MESSAGEo5"YOU NEVER REALLY GOT STARTED!"o74992o8"CRASH AT ";((VXVXVYVY)K);" KM/SEC"pB"ELAPSED TIME:XPMXXPZEYPMYYPZE4420)n:XP,YP3nD4080ZnN +++++ END OF GRAPHICS LOOP +++++{nX34,0: RESTORE TEXT WINDOWnbn^ *****n` EXIT ROUTINEnaCF4930: IF NO CRASH, SKIP THE CRASH MESSAGESnb CRASH ROUTINEnc:odCF2ĺ"TA"N"4290*mXPMXXPZEYPMYYPZE42901m0VXV(LARA)NzHVYV(LARA)Tzoaz(# *****lz2# QUITz<#103,1:104,8:2048,0: RESTORE NORMAL POINTERS zF#D$;"RUN MENU": RUN MAIN MENU PROGRAMzP#D"1:104,8:2048,0: RESTORE NORMAL PNTER LAUNCH SPEED IN KM/SEC":"(TYPICAL VALUES:4 TO 14)>y Vsy"V0V20ĺ"IMPROPER VALUE, SELECT AGAIN ":5910{y#:y%VVK: CONVERT FROM KM/SEC TO MEGAMETERS/SECy*"ENTER LAUNCH ANGLE (SEE DIAGRAM ABOVE)y4LA)z9LALA90: ADJUST ANGLE POINT FOR STARTING MARK1x3: SET COLOR WHITEmxXX,YY3XX,YY3:XX3,YYXX3,YY: DRAW STARTING MARKsxx *****x  INPUT FOR LAUNCH DATAxxV0ĺ"LAST LAUNCH AT: V = ";VK" ANGLE = ";LA90: PRINT LAST LAUNCH VALUES7y"E(XS)137ĺ"YOUR PROPOSED LAUNCH SITE WOULD BE":"OFF THE SCREEN. CHOOSE AGAIN.":5500`wmw *****w DRAW EARTH AND LAUNCH SITEww768: CALL MACHINE LANGUAGE ROUTINE TO MOVE HGR2 TO HGR1xXXXCXS:YYYCYS: CALCULATE PLOTTINGRE:5573: ACCEPT INPUT IN TERMS OF EARTH RADII[vXS(Q$)K: CONVERT TO MEGAMETERSvYS0: Y COORDINATE OF STARTING POINT IS ALWAYS 0 WITH THIS OPTIONv(XS)REĺ"YOUR PROPOSED LAUNCH SITE IS 'INSIDE' ":"THE EARTH! CHOOSE AGAIN.":5500ZwDD( "D"B"OH  aRnO84q`q qq@Ggc @  po~w"2@$"@ddD"bID#HHHL@yH BDD`'$  q"""">!dx "`2B 8D|qx >>|NO!!!!!""" " " " " """""""""     ͠ŠӠũ̠͠ԠĠΠƠΠ͍ččǍÍҍ!͠Š̠ҩ̠͠ԠĠΠƠΠ͍čč̍Íҍ!͠Šũ̠͠ԠĠΠƠΠ͍čč΍č! ͠ŠŠ٩̠͠ԠĠΠƠΠ͍čč΍ō! ͠ŠҠԩ̠͠ԠĠΠƠΠ͍čč΍ō!DDD ""D "`xBDD@`aIGG8Dy `11yp`CcB  QdDAH@$" IA $$"<pp>wwowo{]^{wv6wB !B"@@ D|DI  >D"BDL, Gg@ HDDBHI $FB  yDDAH@$" A D#$""pn>pxxon;{]^{wv6wB"@0@ |D<$ x"<<`sacq<O84 2BL `@ GDDqB qx@#DpB  2DLCH@$" A!$ $&"pn<7?Own;sY^{wvv6vp`L8D@G%@ 1y,<&Dp1 0"pDD "D""BH`@2I@@DL B  DpqnpqRx4MG<@ rypyNFGg#<pprxpp/;Ke?8|6y,<@XXD8"I`cB GKx0qx BDD & I2""!$H "<,L