The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa

6.3. OLD ISSUES 65
6.3.8 XSPEC crashes with segmentation fault with BAT spectra
Task: XSPEC
Version: 11.3.2
What Builds: HEASOFT 6.0 (including Swift 2.0)
Problem: XSPEC crashes with Type II spectral data
Status: Closed Swift 2.1
This problem has been solved in the Swift 2.l release.
It was recently discovered that XSPEC version 11.3.2 crashes when reading BAT data with
a segmentation fault error. This bug occurs for any “Type II” spectral file, but only on certain
platforms (e.g. Linux and Solaris). Version 11.3.2 is the version released in HEASOFT 6.0. XSPEC
version 12 is not affected by this bug.
Currently the best solution is to obtain a software patch from http://heasarc.gsfc.nasa.gov/docs/xanadu/xspec/x
and recompile XSPEC.
Another workaround is to add the XFLTNNNN keywords where NNNN ranges from 1 to 10.
This can be done with the following C-shell commands:
foreach num (01 02 03 04 05 06 07 08 09 10)
fthedit myfile.pha XFLT00${num} add value=${num}
end
6.3.9 baterebin: Possible extra rows in EBOUNDS extension of output DPH
Task: baterebin
Version: Previous to 6.0
What Builds: Swift 2.0 and earlier
Problem: Bug leaving extra rows in EBOUNDS extension in some circumstances
Status: Close Swift 2.1
Updated: 20 Jul 2005
baterebin is used to reset the energy scale for survey histograms accumulated on-board. This
can improve the survey performance since typically the ground knowledge of the energy scale is
better than the flight system provides. baterebin can “rebin” the output survey DPH to into a
smaller number of bins.
If the number of energy bins in the output DPH is less than the number of rows (time bins) in
the input DPH, the EBOUNDS extension of the output DPH will have extra rows with spurious
energy bounds (left over from a copy of the input DPH).
batbinevt will crash with erroneous energy bounds.
The workaround is to delete the extra rows in the EBOUNDS extension before running batbinevt
or other processing.