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Here's a fun navigation challenge for a trip to Mars and back. In this scenario we have 3 ships sitting ready for launch. Imagine the first one is unmanned and filled with enough supplies for 3 humans for 7 months. The second ship on the runway is a Mars landing and launch craft. It has no supplies but during the trip humans will be able to dock with it and if systems are a go, they will be able to land on Mars and launch again. The third ship on the runway has 3 crew and enough supplies for 18 months as well as an Earth reentry capsule.
Here's what happens... the first ship launches shortly after scenario start and ejects to Venus with sling to Mars and then sling to Earth. TransX plan is all set up. It is a supply ship and Earth reentry vehicle. It is only needed if the crew decide to land on Mars. Note that even though it goes before the other two ships, it actually arrives at Mars 10 days after they do.
A day later ship 2 departs Earth. It also slings Venus and heads to Mars. This is the Mars landing and launch craft. A bit like a combination of Earth reentry vehicle and Apollo style LM. It will have to do small MCCs on the way to Venus so that it rendezvous with ship 3 leaving a day later and on a similar trajectory. Plan the rendezvous to happen a week or 2 before the sling at Venus.
One the third day ship 3 leaves. It has the crew for the trip to Mars. It only goes after the first two have had successful launches and are on course. It also carries enough supplies for 18 months in event a landing is aborted. On the way to Venus probably about 10 days before arriving at Venus ship 2 and 3 are converging and they rendezvous. They stay together for the sling around Venus and the trip to Mars.
A few days before arriving at Mars the crew in ship 3 transfer supplies for 3 weeks and themselves into ship 2 and undock. Ship 3 is left to pass Mars and drift in space while the crew make the landing on Mars.
10 days after the crew lands on Mars they launch into low Mars orbit. This is because the first ship to leave Earth (ship 1) is arriving to sling Mars 10 days after the crew got there. So the launch from Mars needs to be set up to allow an eject from Mars in heading and speed to match the arriving supply ship. Within a couple of days after the eject burn they rendezvous with ship 1 for the journey home.
The scenario has the TransX plan all set up for ship 1. You will need to get this ship into orbit, then enter manually the TransX data for ship 2 and 3 and launch them according to their respective plans.
First the data for ship 2 and 3...
Ship 2:
Eject from Earth
Pro= -4.975 Km/s Date=60193.1894 Out=-27.03 PlCh=-84.59
Note: Plan to do MCCs to rendezvous with ship 3 a week or 2 before the arrival at Venus.
Ship 3:
Eject from Earth
Pro= -4.963 Km/s Date=60194.1869 Out=-200.0 PlCh=-82.47
Arrive Venus at 60356.0352
Sling to Mars with Out=71.8989 Inc=-6.8528
Arrive Mars 60483.0792
If landing is aborted be on heading for sling of Mars to Earth with
Out=139.9045 Inc=5.9536 Arrive Earth 6094.5822
Here's what happens... the first ship launches shortly after scenario start and ejects to Venus with sling to Mars and then sling to Earth. TransX plan is all set up. It is a supply ship and Earth reentry vehicle. It is only needed if the crew decide to land on Mars. Note that even though it goes before the other two ships, it actually arrives at Mars 10 days after they do.
A day later ship 2 departs Earth. It also slings Venus and heads to Mars. This is the Mars landing and launch craft. A bit like a combination of Earth reentry vehicle and Apollo style LM. It will have to do small MCCs on the way to Venus so that it rendezvous with ship 3 leaving a day later and on a similar trajectory. Plan the rendezvous to happen a week or 2 before the sling at Venus.
One the third day ship 3 leaves. It has the crew for the trip to Mars. It only goes after the first two have had successful launches and are on course. It also carries enough supplies for 18 months in event a landing is aborted. On the way to Venus probably about 10 days before arriving at Venus ship 2 and 3 are converging and they rendezvous. They stay together for the sling around Venus and the trip to Mars.
A few days before arriving at Mars the crew in ship 3 transfer supplies for 3 weeks and themselves into ship 2 and undock. Ship 3 is left to pass Mars and drift in space while the crew make the landing on Mars.
10 days after the crew lands on Mars they launch into low Mars orbit. This is because the first ship to leave Earth (ship 1) is arriving to sling Mars 10 days after the crew got there. So the launch from Mars needs to be set up to allow an eject from Mars in heading and speed to match the arriving supply ship. Within a couple of days after the eject burn they rendezvous with ship 1 for the journey home.
The scenario has the TransX plan all set up for ship 1. You will need to get this ship into orbit, then enter manually the TransX data for ship 2 and 3 and launch them according to their respective plans.
First the data for ship 2 and 3...
Ship 2:
Eject from Earth
Pro= -4.975 Km/s Date=60193.1894 Out=-27.03 PlCh=-84.59
Note: Plan to do MCCs to rendezvous with ship 3 a week or 2 before the arrival at Venus.
Ship 3:
Eject from Earth
Pro= -4.963 Km/s Date=60194.1869 Out=-200.0 PlCh=-82.47
Arrive Venus at 60356.0352
Sling to Mars with Out=71.8989 Inc=-6.8528
Arrive Mars 60483.0792
If landing is aborted be on heading for sling of Mars to Earth with
Out=139.9045 Inc=5.9536 Arrive Earth 6094.5822
Code:
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END_DESC
BEGIN_ENVIRONMENT
System Sol
Date MJD 60191.5200525831
END_ENVIRONMENT
BEGIN_FOCUS
Ship 1
END_FOCUS
BEGIN_CAMERA
TARGET 1
MODE Cockpit
FOV 40.00
END_CAMERA
BEGIN_HUD
TYPE Surface
END_HUD
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TYPE User
MODE TransX
Ship 1
FNumber 7
Int 1
Orbit True
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Vector -427.292328881 -6.63372561572 17.7673964739
Double 3.98600439969e+014
Double 60191.5200515
Handle Earth
Handle NULL
Handle NULL
Select Target
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Pe Distance
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Ej Orientation
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Equatorial view
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Finish BaseFunction
Int 2
Orbit False
Handle Sun
Handle Earth
Handle Venus
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Finvars
Finish BaseFunction
Int 4
Orbit True
Vector 1201234548.45 -1099887460.34 5974892247.54
Vector -2227.318973 2022.64375043 -10957.0014635
Double 3.2485863e+014
Double 60351.6343706
Handle Venus
Handle NULL
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Int 3
Orbit True
Vector -13637415869.4 -684142408.059 -107853089043
Vector 36399.974969 -951.981960633 -15663.1647829
Double 1.32712764814e+020
Double 60357.9301704
Handle Sun
Handle Venus
Handle Mars
Select Target
0 Mars
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Plan
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Plan
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Select Minor
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0 0
Orbits to Icept
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Advanced
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Outward angle
4 1.27763023074
Inc. angle
4 -0.119824881664
Inherit Vel.
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Eject date
0 60357.9301704
Finvars
Finish BaseFunction
Int 4
Orbit True
Vector -2158950562.34 399085993.621 5735692783.93
Vector 2267.45692619 -418.955785176 -6038.24903514
Double 4.28282991638e+013
Double 60482.2592579
Handle Mars
Handle NULL
Handle NULL
Select Target
0 Escape
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Plan
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Vector 206167231961 -4245347466.62 38646227589
Vector 906.070242757 -286.956908368 21281.2392576
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Inc. angle
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Orbit True
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Double 60687.4670176
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END_MFD
BEGIN_MFD Right
TYPE User
MODE TransX
END_MFD
BEGIN_SHIPS
1:DeltaGlider
STATUS Landed Earth
POS -82.4252320 22.9799160
HEADING 59.75
RCSMODE 0
AFCMODE 7
PRPLEVEL 0:0.997853 1:1.000000
NAVFREQ 562 162 50 0
XPDR 0
GEAR 1 1.0000
TRIM 1.000000
AAP 0:0 0:0 0:0
END
2:DeltaGlider
STATUS Landed Earth
POS -82.4260542 22.9794773
HEADING 60.08
RCSMODE 0
AFCMODE 7
PRPLEVEL 0:0.997846 1:1.000000
NAVFREQ 562 162 50 0
XPDR 0
GEAR 1 1.0000
TRIM 1.000000
AAP 0:0 0:0 0:0
END
3:DeltaGlider
STATUS Landed Earth
POS -82.4267122 22.9791315
HEADING 60.04
RCSMODE 0
AFCMODE 7
PRPLEVEL 0:0.998678 1:1.000000
NAVFREQ 562 162 50 0
XPDR 0
GEAR 1 1.0000
PSNGR 2 3
TRIM 1.000000
AAP 0:0 0:0 0:0
END
END_SHIPS