XMM-Newton Science Analysis System . evproject (attcalc2-1.0) [xmmsas_20050815_1803-6.5.0] . Meta Index . The task evproject 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. ... Source of the spacecraft attitude information . ... Binning up the attitude . ... Input Files . Output Files . ... Index . ...