Wednesday, October 19, 2005

bug in extractor when combining 3x3 and 5x5 XIS files

Aya Bamba reported an obscure bug when running extract event in xselect. If both 3x3 and 5x5 event files are in use and the 5x5 is first then the resulting event file loses the events from the 3x3 file. Reproducing her problem showed that the events from the 3x3 file were in the output file but their TIME column had zero values. This was due to a bug in extractor which occurred if the first file had fewer columns than the second - the values from the extra columns would be lost even if these columns were matched in name with those in the first file ie if the differences between the files consisted of some additional columns added in the middle of the row. This
particular case has probably never arisen before. Fixed as extractor v4.59.

Keywords: HEAsoft, xselect, extractor, Suzaku

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