docs: def getOrigin(self, cartesian=False):
          """Return the ra/decs of the channel corners if the S/C
          is pointed at the origin (ra,dec = 0,0)
  
          Inputs:
          cartesian   (bool) If True, return each channel corner
                      as a unit vector
  
          Returns:
          A 2d numpy array. Each row represents a channel corner
          The columns are module, output, channel, ra, dec
  
          If cartestian is True, ra, and dec are replaced by the
          coordinates of a 3 vector
          """
          out = self.origin.copy()
  
          if cartesian is False:
              out = self.getRaDecs(out)
          return out