Antenna motion and deformation

• Top (T) – bottom (B) accelerometer: elevation

• Left (L) – right (R): cross-elevation

• Receiver flange (RF) tri-ax: BUS translations

• (T+B) – (L+R): “+” astigmatism

• (T+B+L+R) – 4*RF: focus term deformation

• BUS translation & apex translation: path length

• For ANY observation mode!

Notes: