SunV2:

Path: SC/Ephem

% Moderate precision sun model.
   Generates the sun vector in the earth-centered inertial frame. Will
   output the distance to the sun from the earth if two output
   arguments are given.
   SunV2 is computationally a little more intensive and gives more
   accurate results than SunV1

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   Form:
   [u, r] = SunV2( jD, rSc )
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   ------
   Inputs
   ------
   jD        (:)     Julian date
   rSc       (3,:)   Spacecraft vector in the ECI frame (km)

   -------
   Outputs
   -------
   u         (3,:)   Unit sun vector
   r         (:)     Distance from origin to sun (km)

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Children:

Common: Time/Date2JD
Math: Linear/Mag
Math: Linear/Unit
Math: Trigonometry/CosD

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