... attcalc (attcalc-4.32) [xmmsas_20050815_1803-6.5.0] . ... The atthkgen output file is accessed by attcalc for the mean and median pointing values over the observation (nothing else, when attitudelabel =ahf, attcalc calls the OAL anew). If this file (default name: atthk.dat ) doesn't exist in the current directory, a warning message is given, and no PNT attributes are propagated. A boolean parameter withatthkgen exists to determine whether the task should use any atthkgen output file. ...