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Old 02-24-2010, 06:29 PM   #1
flytandem
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Default 2010_EVEEJN_Hohmann

I hope these scenarios aren't a bother but maybe I'm bored and can't stop this incessant TransX clicking. Anyway here's another scenario a bit related to the one I uploaded yesterday(2010_EVEEJ). This one concentrates on minimizing the arrival speed at Jupiter. It starts ready for a April 5th 2010 launch, heading 088. You do a fairly weak push to Venus, then sling back to sling Earth twice and the second Earth sling results in a Hohmann transfer to Jupiter. Being so slow arriving at Jupiter it can't do the sling to Saturn but oddly enough it is about perfect for another Hohmann sling but this time to Neptune. DeltaV needs are minimal but the transfers are slow, 7+ years for the 3 slings to Jupiter and additional 33 years to go from Jupiter to Neptune.
Edit: Flight report: From low Earth orbit, the DeltaV needs turned out to be 6,370 m/s for the entire trip to a soft landing on Nereid the outer moon of Neptune. Using the other scenario, "2010_EVEEJ" the DeltaV use was far greater, being 10,420 m/s.

Code:
BEGIN_DESC
All set for an April 5th 2010 launch to
sling Venus, Earth, Earth then Hohman
transfer to Jupiter with minimal 
encounter speed. Option is then to
either insert at Jupiter or sling to
another Hohman transfer for slow 
encounter speed at Neptune. 
END_DESC

BEGIN_ENVIRONMENT
  System Sol
  Date MJD 55291.8111922153
END_ENVIRONMENT

BEGIN_FOCUS
  Ship 3
END_FOCUS

BEGIN_CAMERA
  TARGET 3
  MODE Cockpit
  FOV 60.00
END_CAMERA

BEGIN_HUD
  TYPE Surface
END_HUD

BEGIN_MFD Left
  TYPE User
  MODE TransX
  Ship  3
  FNumber 11
  Int 1
  Orbit True
  Vector  4244838.42175 671149.946984 

4703265.4283
  Vector  -295.16495003 -123.180387642 

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  Int 2
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  Handle Sun
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  Orbit True
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  Vector  -5421.86225848 2409.34379813 

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  Double  3.2485863e+014
  Double  55661.2023425
  Handle Venus
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  Orbit True
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  Vector  27220.305178 -737.308330348 

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  Double  1.32712764814e+020
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  Double  3.98600439969e+014
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  Orbit True
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  Orbit True
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  Handle Neptune
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END_MFD

BEGIN_MFD Right
  TYPE User
  MODE TransX
END_MFD


BEGIN_SHIPS
3:DeltaGlider
  STATUS Landed Earth
  POS -82.4237766 22.9806887
  HEADING 60.03
  RCSMODE 0
  PRPLEVEL 0:1.000 1:1.000
  NAVFREQ 0 524 84 114
  XPDR 6
  GEAR 1 1.0000
  PSNGR 2 3 4
  TRIM 1.000
END
END_SHIPS

BEGIN_ExtMFD
END

BEGIN_VistaBoost
END

Last edited by flytandem; 02-25-2010 at 02:59 PM.
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