EclipseHelio:

Path: SC/Ephem

% Determines eclipses in heliocentric coordinates.

 You must initialize the JPL ephemerides prior to using this function.
 For example, with the earth and moon.

   PlanetPosJPL( 'initialize', [3 10] );

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   Form:
   nEclipse = EclipseHelio( r, rP, planetID )
   nEclipse = EclipseHelio( r, [], planetID, jD )
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   ------
   Inputs
   ------
   r         (3,1) Position vector of spacecraft (km)
   rP        (3,:) Heliocentric planet positions
   planetID  (1,:) Planet IDs corresponding to the output of PlanetPosJPL

   -------
   Outputs
   -------
   nEclipse	(1,:) Eclipse fraction

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Children:

SC: Ephem/Eclipse
SC: Ephem/PlanetPosJPL

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