XMM-Newton Science Analysis System


attcalc (attcalc-4.40.1) [22.0.0-9173c7d25-20250127]

attcalc

Abstract:

The task attcalc calculates linearized sky coordinates (i.e. a tangential projection on the sky) on an event-by-event basis, and stores these new coordinates in the input event list in columns X and Y, as offsets from a particular reference point.