XMM-Newton Science Analysis System


ssclib (ssclib-4.36.3) [22.0.0-9173c7d25-20250127]

instToTan

  interface instToTan
    subroutine instToTanScalar(tanX, tanY, refRaDeg, refDecDeg, scAttitude&
      , timeStamp, detX, detY, thetaArcsec, phi)

      real(double),                 intent(out) :: tanX,&
                                                   tanY
      real(double),                 intent(in)  :: refRaDeg,&
                                                   refDecDeg
      type(SpacecraftAttitudeType), intent(in)  :: scAttitude
      real(double),                 intent(in)  :: timeStamp
      real(single),       optional, intent(in)  :: detX,&
                                                   detY
      real(double),       optional, intent(in)  :: thetaArcsec,&
                                                   phi
    end subroutine instToTanScalar

    subroutine instToTanVector(tanX, tanY, refRaDeg, refDecDeg, scAttitude&
      , timeStamp, detX, detY, thetaArcsec, phi)

      real(double),                 intent(out) :: tanX(:),&
                                                   tanY(size(tanX))
      real(double),                 intent(in)  :: refRaDeg,&
                                                   refDecDeg
      type(SpacecraftAttitudeType), intent(in)  :: scAttitude
      real(double),                 intent(in)  :: timeStamp
      real(single),       optional, intent(in)  :: detX(size(tanX)),&
                                                   detY(size(tanX))
      real(double),       optional, intent(in)  :: thetaArcsec(size(tanX)),&
                                                   phi(size(tanX))
    end subroutine instToTanVector

    subroutine instToTanArray(tanX, tanY, refRaDeg, refDecDeg, scAttitude&
      , timeStamp, detX, detY, thetaArcsec, phi)

      real(double),                 intent(out) :: tanX(:,:),&
                                                   tanY(size(tanX,1),&
                                                        size(tanX,2))
      real(double),                 intent(in)  :: refRaDeg,&
                                                   refDecDeg
      type(SpacecraftAttitudeType), intent(in)  :: scAttitude
      real(double),                 intent(in)  :: timeStamp
      real(single),       optional, intent(in)  :: detX(size(tanX,1),&
                                                        size(tanX,2)),&
                                                   detY(size(tanX,1),&
                                                        size(tanX,2))
      real(double),       optional, intent(in)  :: thetaArcsec(size(tanX,1),&
                                                               size(tanX,2)),&
                                                   phi(size(tanX,1),&
                                                       size(tanX,2))
    end subroutine instToTanArray
  end interface

Effectively this is just instToRaDec (section ) followed by raDecToTan (section ).

NOTE this function requires the cal to have been set to the correct instrument before the call.