LambertDoubleRendezvous:

Path: Orbit/Interplanetary

% Double rendezvous problem between two planets.

   Go from one planet1 to planet2, wait some days, then come back. The
   DVs are assumed to be impulsive. A simple search for a start date is
   performed to look for the minimum outbound DV given the selected 
   transfer time.

   Longer transfer times result in smaller delta-v with an optimum at the
   equivalent Hohmann transfer. 
 
   If the transfer time is too short for an elliptical transfer the 
   function will produce a warning.

   Since version 2014.1
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   Form:
   d = LambertDoubleRendezvous( planet1, planet2, jD0, days, duration )
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   ------
   Inputs
   ------
   planet1   (1,:)   Starting planet
   planet2   (1,:)   Target planet
   jD0       (1,1)   Reference Julian date
   days      (1,:)   Vector of days (from jD0) to search over
   duration  (1,3)   Mission durations:
                       (1)   Number of days out      (Planet1 to Planet2)
                       (2)   Number of days to stay  (at Planet2)
                       (3)   Number of days back     (Planet2 to Planet1)


   -------   
   Outputs
   -------
   d          (.)    Data structure with all data describing the double
                     rendezvous transfer trajectories.

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   See also PlanetTransferLambert
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Children:

Common: GUIs/Figui
Common: Graphics/NewFig
Common: Time/Date2JD
Common: Time/JD2Date
Orbit: Interplanetary/PlanetTransferLambert
Orbit: Interplanetary/SynodicPlanets

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