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

E.14. SWIFT BAT SOFTWARE BUILD 16: 2005 SEP 20 213
E.14 Swift BAT Software Build 16: 2005 Sep 20
1. Overview
This build contains improvements and fixes to many tools. There are
three new tools: batoccultgti, batoccultmap, and batphasyserr.
All unit tests pass, and are based on the "production" version of the
BAT caldb as of Sep 9.
2. Summary of tool changes
There are three new tools
batoccultgti
* this new task computes good time intervals that are unocculted by
the earth, moon, and/or sun. The user enters as input the
observation "prefilter" (or "SAO") file and the position of the
source. The output is a standard good time interval file which can
be used for selecting BAT survey data (it can be used as input to
the ’mgtime’ or ’batbinevt’ tasks).
This task is used when the source of interest is known.
batoccultmap
* this new task computes an exposure correction based on occultations
by the earth, moon and/or sun. The user enters as input the
observation "prefilter" (or "SAO") file and the image to be
corrected. Portions of the image which are occulted by the earth
or other bodies have their exposure reduced accordingly. The
motion of these bodies in the BAT field of view as a function of
time are accounted for as well.
This task is used when a blind image search will be performed, or
if there are many sources being analyzed at the same time. When
the source is known in advance, unocculted data should be selected
using batoccultgti instead.
batphasyserr
* this new task applies a systematic error vector to a user-generated
BAT spectrum (PHA file). By default the systematic error vector is
taken from CALDB. Both type I and type II spectral formats are
handled. If the user binning does not match the systematic error
template, then the template is rebinned to match.
Revised tools