These pages document the standard processing of ASCA data done at the NASA Goddard Space Flight Center.
Processing is done by a set of modular routines each of which performs a major processing step.
This page shows the order in which these routines are called and provides links to more detailed information. Calculate the aspect point from the attitude files. Merge the event files created by frfread. Run ascalin to calibrate the unfiltered event files. Run xselect to screen out bad data.