FRSTarg:

--------------------------------------------------------------------------
   Compute the target quaternion for the fast reorientation system. 
   This routine assumes that you wish to
   point uSensor0 (which is input in the spacecraft frame) at
   uTargetRef which is input in the reference frame.

   Since version 2.
--------------------------------------------------------------------------
   Form:
   qRefTo1 = FRSTarg( qRefTo0, uSensor0, uTargetRef )
--------------------------------------------------------------------------

   ------
   Inputs
   ------
   qRefTo0        (4,1)  Quaternion from the reference to the s/c
   uSensor0       (3,1)  Sensor unit vector in the s/c frame
   uTargetRef     (3,1)  Target vector in the reference frame

   -------
   Outputs
   -------
   qRefTo1        (4,1)  Quaternion from the reference to the s/c target

--------------------------------------------------------------------------

Children:

Common: Quaternion/AU2Q
Common: Quaternion/QForm
Common: Quaternion/QMult
Math: Linear/Cross
Math: Linear/Unit