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Chandra-MARX / marx

Chandra X-ray Observatory ray-trace simulator
http://space.mit.edu/cxc/marx/
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Change data type of PI and PHA columns written to match CIAO #36

Closed hamogu closed 5 years ago

hamogu commented 5 years ago

This is required to dmmerge marx2fits output to e.g. ACIS stowed background files. The exampel I used ot test this earlier used he background file acis7sD2009-09-21bkgrndN0001.fits where the N0001 in the file name is a version number. That older version uses the

i2 type and I had made marx to match that. In the current CALDB, there is a newer version of this file acis7sD2009-09-21bkgrndN0002.fits which is version N0002, which uses >i4 data datatype for PHA and PI columns. My scripts did not catch that change, because I had the filename of the datafile hardcoded. This commit switches marx2fits to use >i4 to match the event files (and background files) that the current version of CIAO produces.