docs: def computePointing(self, ra_deg, dec_deg, roll_deg, cartesian=False):
          """Compute a pointing model without changing the internal object pointing"""
          # Roll FOV
          Rrotate = r.rotateInXMat(roll_deg)  # Roll
  
          # Slew from ra/dec of zero
          Ra = r.rightAscensionRotationMatrix(ra_deg)
          Rd = r.declinationRotationMatrix(dec_deg)
          Rslew = np.dot(Ra, Rd)
  
          R = np.dot(Rslew, Rrotate)
  
          slew = self.origin*1
          for i, row in enumerate(self.origin):
              slew[i, 3:6] = np.dot(R, row[3:6])
  
          if cartesian is False:
              slew = self.getRaDecs(slew)
          return slew