ShortArcToHills:

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   Convert short arc measurements to a Hill's state

   Type ShortArcToHills for a demo.

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   Form:
   x = ShortArcToHills( p, t, n, qHToBody, e )
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   ------
   Inputs
   ------
   p         (2,3) Pixel locations
   t         (1,3) Times (sec)
   n         (1,1) Orbit rate of observing spacecraft (rad/s)
   qHToBody  (4,1) Quaternion from Hills to Body
   e         (1,1) Camera data structure
                   .f            (1,1) Focal length (mm)
                   .w            (1,1) Pixel width (micro-m)
                   .bodyToCamera (3,3) Transformation from body to camera

   -------
   Outputs
   -------
   x         (6,1) Hills state [r;v]

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Children:

Common: Coord/AU2Q
Common: Coord/QForm
Common: Database/Constant
Common: Math/Mag
Common: Math/Unit
SC: BasicOrbit/El2RV
SC: BasicOrbit/PeriodToSMA
SCPro: Optics/PinholeCamera