Orbiter-Forum [Scenario] Earth Mars Earth short mission duration
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 02-07-2013, 07:11 PM #1 flytandem Tutorial Publisher Earth Mars Earth short mission duration Here's a choice of 3 different scenarios. All three start out the same with an eject that goes inward to Venus to sling to Mars. Then the difference in the 3 is: 1. A landing on Mars that has about a month on the surface then an easy eject to a soft encounter at Earth for total mission time of about 20 months, Pe vel= 11.7 km/sec.. 2. Abort the Mars landing in the first scenario. Sling Mars to return to Earth for fairly fast encounter speed. Total mission time= 16 months. Encounter Pe vel= 16.5 km/sec. 3. Abort the Mars landing in the first scenario. Sling Mars to Earth for a later but softer encounter speed. Total Mission time= 22.5 months, Pe vel= 13.7 km/sec. The idea would be to evaluate system performance and decide in the last few days before arriving at Mars if a landing is possible or if one needs to skip the landing and with a MCC to sling back to Earth. Then if the sling to Earth is decided, one has the choice of a rapid return but fast Pe velocity at Earth, or a longer return time with a slower Pe velocity at Earth. Here are the scenarios: 1. Code: ```BEGIN_DESC Landing on Mars. 29.5 days stay on surface. Then return to Earth. Total mission time= 588 days. END_DESC BEGIN_ENVIRONMENT System Sol Date MJD 57845.0036723390 END_ENVIRONMENT BEGIN_FOCUS Ship 3 END_FOCUS BEGIN_CAMERA TARGET 3 MODE Cockpit FOV 60.00 END_CAMERA BEGIN_MFD Left TYPE User MODE TransX Ship 3 FNumber 7 Int 1 Orbit True Vector 1460415.63083 1256507.31542 6072740.46199 Vector -369.843156708 -41.6201590388 97.5541051063 Double 3.98600439969e+014 Double 57845.0036718 Handle Earth Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 0 Plan 0 1 Plan 0 0 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 56330.7514771 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Pe Distance 1 7645212 Ej Orientation 1 0 Equatorial view 0 0 Finvars Finish BaseFunction Int 2 Orbit False Handle Sun Handle Earth Handle Venus Select Target 0 Venus Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 1 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 1 Prograde vel. 1 0 Man. date 1 57845.0036723 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Prograde vel. 2 -4418.8384505 Eject date 6 57845.8784479 Outward vel. 1 -1269.73464853 Ch. plane vel. 4 501.475313428 Finvars Finish BaseFunction Int 4 Orbit True Vector 718508093.075 1048236174.46 -6012400468.21 Vector -1135.83249931 -1690.52808039 9688.38840877 Double 3.2485863e+014 Double 58000.2145592 Handle Venus Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 1 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0031857 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 View Orbit 0 0 Finvars Finish BaseFunction Int 3 Orbit True Vector -10967152172.3 2093043268.33 107071482250 Vector -40482.8020014 838.238521961 4361.23028803 Double 1.32712764814e+020 Double 58007.3802805 Handle Sun Handle Venus Handle Mars Select Target 0 Mars Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 2 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0031793 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Velocity. 1 0 Outward angle 5 1.08571661872 Inc. angle 3 0.155892808788 Inherit Vel. 0 0 Eject date 1 58007.3802805 Finvars Finish BaseFunction Int 4 Orbit True Vector 5377651531.9 -299833775.074 -1977295942.18 Vector -4977.16100437 277.518228891 1824.42678948 Double 4.28282991638e+013 Double 58196.6923034 Handle Mars Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 1 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0031756 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 View Orbit 0 0 Finvars Finish BaseFunction Int 2 Orbit True Vector -123955980627 -998181658.669 -192862420465 Vector 17889.7892898 -570.814507189 -6955.55209916 Double 1.32712482783e+020 Double 58209.1837486 Handle Sun Handle Mars Handle Earth Select Target 0 Earth Autoplan 0 1 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 1 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0031743 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Prograde vel. 5 -2364.19177917 Eject date 4 58238.5236553 Outward vel. 3 -1829.11299313 Ch. plane vel. 1 0 Finvars Finish BaseFunction Int 5 Orbit True Vector 2641648805.43 -2598937227.34 -8466621346.9 Vector -1078.07486497 1071.04719337 3480.71802107 Double 3.98600439969e+014 Double 58406.1034923 Handle Earth Handle NULL Handle NULL Select Target 0 None Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 2 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0036723 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Draw Base 0 0 Finvars Finish BaseFunction END_MFD BEGIN_MFD Right TYPE User MODE TransX END_MFD BEGIN_SHIPS 3:DeltaGlider STATUS Landed Earth POS -117.2601388 34.0891835 HEADING 151.05 RCSMODE 0 AFCMODE 7 PRPLEVEL 0:1.000000 1:1.000000 NAVFREQ 0 524 84 114 XPDR 6 GEAR 1 1.0000 PSNGR 2 3 4 TRIM 1.000000 AAP 0:0 0:0 0:0 END END_SHIPS BEGIN_VistaBoost END BEGIN_ExtMFD END``` 2. Code: ```BEGIN_DESC Abort landing on Mars, sling to Earth. Total Mission Time= 477 days, Pe vel= 16.5 km/sec. END_DESC BEGIN_ENVIRONMENT System Sol Date MJD 57845.0070428662 END_ENVIRONMENT BEGIN_FOCUS Ship 3 END_FOCUS BEGIN_CAMERA TARGET 3 MODE Cockpit FOV 60.00 END_CAMERA BEGIN_MFD Left TYPE User MODE TransX Ship 3 FNumber 7 Int 1 Orbit True Vector 1352488.26215 1244853.15259 6100075.18777 Vector -372.009996072 -38.4862721827 90.3347734877 Double 3.98600439969e+014 Double 57845.0070393 Handle Earth Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 0 Plan 0 1 Plan 0 0 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 0 0 Man. date 0 57845.0057254 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Pe Distance 0 7645212 Ej Orientation 0 0 Equatorial view 0 0 Finvars Finish BaseFunction Int 2 Orbit False Handle Sun Handle Earth Handle Venus Select Target 0 Venus Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 1 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 1 Prograde vel. 0 0 Man. date 0 57845.0057293 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Prograde vel. 0 -4418.8384505 Eject date 0 57845.8784479 Outward vel. 0 -1269.73464853 Ch. plane vel. 0 501.475313428 Finvars Finish BaseFunction Int 4 Orbit True Vector 718508520.209 1048236763.93 -6012403972.14 Vector -1135.83242865 -1690.52808859 9688.38841255 Double 3.2485863e+014 Double 58000.2145548 Handle Venus Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 1 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 0 0 Man. date 0 57845.0057405 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 View Orbit 0 0 Finvars Finish BaseFunction Int 3 Orbit True Vector -10967151017.1 2093043188.53 107071482352 Vector -40482.7842789 838.242727082 4361.24322123 Double 1.32712764814e+020 Double 58007.3802804 Handle Sun Handle Venus Handle Mars Select Target 0 Mars Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 2 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 0 0 Man. date 0 57845.0062293 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Velocity. 0 0 Outward angle 5 1.08569881636 Inc. angle 4 0.155969254209 Inherit Vel. 0 0 Eject date 0 58007.3802804 Finvars Finish BaseFunction Int 4 Orbit True Vector 5376750817.29 -302854854.968 -1979343139.76 Vector -4977.47084212 277.805788001 1824.22749942 Double 4.28282991638e+013 Double 58196.6909401 Handle Mars Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 1 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 0 0 Man. date 0 57845.0062597 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 View Orbit 0 0 Finvars Finish BaseFunction Int 3 Orbit True Vector -123961731666 -1005553845.99 -192872197881 Vector 17239.9165978 51.50412131 -7694.80220126 Double 1.32712482783e+020 Double 58209.1831856 Handle Sun Handle Mars Handle Earth Select Target 0 Earth Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 2 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 0 0 Man. date 0 57845.0070429 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Velocity. 0 0 Outward angle 4 -2.93264288274 Inc. angle 0 -0.120357905218 Inherit Vel. 0 0 Eject date 0 58209.1831856 Finvars Finish BaseFunction Int 5 Orbit True Vector 5534215710.66 -104954880.45 -7401198557.6 Vector -7331.82250913 138.499202991 9824.50179351 Double 3.98600439969e+014 Double 58314.7402169 Handle Earth Handle NULL Handle NULL Select Target 0 None Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 2 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 0 0 Man. date 0 57845.0070429 Outward vel. 0 0 Ch. plane vel. 0 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Draw Base 0 0 Finvars Finish BaseFunction END_MFD BEGIN_MFD Right TYPE User MODE TransX END_MFD BEGIN_SHIPS 3:DeltaGlider STATUS Landed Earth POS -117.2601388 34.0891835 HEADING 151.05 RCSMODE 0 AFCMODE 7 PRPLEVEL 0:1.000000 1:1.000000 NAVFREQ 0 524 84 114 XPDR 6 GEAR 1 1.0000 PSNGR 2 3 4 TRIM 1.000000 AAP 0:0 0:0 0:0 END END_SHIPS BEGIN_VistaBoost END BEGIN_ExtMFD END``` 3. Code: ```BEGIN_DESC Abort landing on Mars, sling to Earth for total Mission Time = 676 days. Pe Vel = 13.7 km/sec. END_DESC BEGIN_ENVIRONMENT System Sol Date MJD 57845.0159351438 END_ENVIRONMENT BEGIN_FOCUS Ship 3 END_FOCUS BEGIN_CAMERA TARGET 3 MODE Cockpit FOV 60.00 END_CAMERA BEGIN_MFD Left TYPE User MODE TransX Ship 3 FNumber 7 Int 1 Orbit True Vector 1064627.4729 1218480.20343 6162116.15477 Vector -376.925750114 -30.1289842895 71.0790041473 Double 3.98600439969e+014 Double 57845.0159342 Handle Earth Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 0 Plan 0 1 Plan 0 0 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0159342 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Pe Distance 1 7645212 Ej Orientation 1 0 Equatorial view 0 0 Finvars Finish BaseFunction Int 2 Orbit False Handle Sun Handle Earth Handle Venus Select Target 0 Venus Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 1 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 1 Prograde vel. 1 0 Man. date 1 57845.0159342 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Prograde vel. 1 -4418.8384505 Eject date 1 57845.8784479 Outward vel. 1 -1269.73464853 Ch. plane vel. 1 501.475313428 Finvars Finish BaseFunction Int 4 Orbit True Vector 718509793.784 1048238292.82 -6012413195.11 Vector -1135.8322655 -1690.52810797 9688.38846547 Double 3.2485863e+014 Double 58000.2145435 Handle Venus Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 1 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0158239 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 View Orbit 0 0 Finvars Finish BaseFunction Int 3 Orbit True Vector -10967147827.5 2093042931.1 107071482665 Vector -40482.6990542 838.249314462 4361.30276347 Double 1.32712764814e+020 Double 58007.3802801 Handle Sun Handle Venus Handle Mars Select Target 0 Mars Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 2 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0158059 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Velocity. 1 0 Outward angle 1 1.08576657004 Inc. angle 1 0.155936651459 Inherit Vel. 0 0 Eject date 1 58007.3802801 Finvars Finish BaseFunction Int 4 Orbit True Vector 5380574939.89 -301149090.224 -1969301859.53 Vector -4975.17694503 277.677541024 1825.91857973 Double 4.28282991638e+013 Double 58196.7224981 Handle Mars Handle NULL Handle NULL Select Target 0 Escape Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 1 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0157808 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 View Orbit 0 0 Finvars Finish BaseFunction Int 3 Orbit True Vector -123887793147 -1002235590.96 -192875003533 Vector 16173.6024678 4.49776436968 -12148.454592 Double 1.32712482783e+020 Double 58209.2169115 Handle Sun Handle Mars Handle Earth Select Target 0 Earth Autoplan 0 0 Plan type 0 2 Plan 0 0 Plan 0 0 Plan 0 2 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0157533 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Velocity. 1 0 Outward angle 6 2.44816583686 Inc. angle 1 -0.124197629572 Inherit Vel. 0 0 Eject date 1 58209.2169115 Finvars Finish BaseFunction Int 5 Orbit True Vector 7808120592.6 164855669.485 -4941947695.63 Vector -6771.00584366 -138.97534577 4295.77596275 Double 3.98600439969e+014 Double 58509.2637189 Handle Earth Handle NULL Handle NULL Select Target 0 None Autoplan 0 0 Plan type 0 1 Plan 0 0 Plan 0 2 Plan 0 0 Select Minor 0 None Manoeuvre mode 0 0 Base Orbit 0 0 Prograde vel. 1 0 Man. date 1 57845.0157253 Outward vel. 1 0 Ch. plane vel. 1 0 Intercept with 0 0 Orbits to Icept 0 0 Graph projection 0 0 Scale to view 0 0 Advanced 0 0 Draw Base 0 0 Finvars Finish BaseFunction END_MFD BEGIN_MFD Right TYPE User MODE TransX END_MFD BEGIN_SHIPS 3:DeltaGlider STATUS Landed Earth POS -117.2601388 34.0891835 HEADING 151.05 RCSMODE 0 AFCMODE 7 PRPLEVEL 0:1.000000 1:1.000000 NAVFREQ 0 524 84 114 XPDR 6 GEAR 1 1.0000 PSNGR 2 3 4 TRIM 1.000000 AAP 0:0 0:0 0:0 END END_SHIPS BEGIN_VistaBoost END BEGIN_ExtMFD END```
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 02-13-2013, 09:22 PM #2 perseus Addon Developer Hello, good scenario, but I have something unexpected when I leave the influence of the earth's gravita field, the whole plan is deleted and need new setting, this often is normal?
 02-14-2013, 04:32 PM #3 flytandem Tutorial Publisher The plan and all the stages should remain. But if you are missing Venus beyond some limited amount, it will appear as though you are not heading there. Is that what you mean? Post a save (scenario) for what you are describing. (edit) and it's normal that future slings need to be tweaked and repositioned after (actually during) every mid course correction. Last edited by flytandem; 02-14-2013 at 04:34 PM.
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