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

198 APPENDIX E. BAT SOFTWARE REVISION HISTORY
to detector planes with low counts came out too small. This involved
altering the count values and their weights in the fit according to a
prescription by K. Mighell (Ap J 518, p. 380, 1999). This appears to
improve the cleaning of sources with low background.
batdrmgen -- MINOR CHANGES
Build 7 version 12/3/03 - Ann Parsons, Derek Hullinger, Craig Markwardt
(very similar to Build 6)
New with this version:
1)Uses the keyword maskwtsqr, as read from the header of the pha
file’s SPECTRUM extension, to determine the effective number of
detectors included in the response.
2) Bug fixes to the default input energy bin edges. (The K edge
energies were wrong)
Remaining limitations of this version:
1) Keywords representing the state of the PHA data (whether or not
various corrections have been applied) have not been implemented.
2) The cal parameters file currently has identical entries for each
cell - we must change the file to include the right spectral parameters.
bateconvert -- MINOR CHANGES
Fixed bug that was corrupting the input file if the cal files were not
valid files. (The code wasn’t going to cleanup properly if the routine
that tried to read the cal files returned a non-zero status.)
batfftimage - SIGNIFICANT CHANGES
batfftimage - v1.3 - Extensive changes. The task now accepts a
background image (or images) and performs background subtraction
before deconvolution. Units are maintained. Images with NULL pixels
have those pixels ignored. The user can now specify which column to
operate on, if the input is a table of images. The task is compatible
with the new attitude library version by Ed Pier. Bug fixes and
cleanups.
bathotpix - MINOR CHANGES
bathotpix - v1.1 - Minor changes. The "guard band" calculation has
been changed.
batmaskwtimg/evt - SIGNIFICANT CHANGES
batmaskwtevt / img - v1.1 - Extensive changes. A new algorithm for
calculating mask transmission functions is included (maskwtimg_op),
activated by passing the corrections=opaque parameter. The detector
quality map is now applied correctly. A bug was fixed in the way that