XMM-Newton Science Analysis System


attcalc (attcalc-4.32) [xmmsas_20070308_1802-6.6.0]

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attcalc

Andy Read, Michael Freyberg (MPE, mjf@mpe.mpg.de)

15 July 2002

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.