The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa
The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa
The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa
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1<strong>30</strong> APPENDIX D. <strong>BAT</strong> SOFTWARE TOOL REFERENCE<br />
D.6 <strong>BAT</strong>ECONVERT<br />
D.6.1 NAME<br />
bateconvert - read in an event file and apply energy conversions.<br />
D.6.2 USAGE<br />
bateconvert infile calfile residfile pulserfile [outfile] [calmode] [zeroit]<br />
D.<strong>6.3</strong> DESCRIPTION<br />
This task reads in an event file and one to three calibration files containing gains and offsets in<br />
a <strong>BAT</strong> Detector Plane array. For each event it calculates the energy in keV from the ADU value<br />
(PHA), gain and offset. <strong>The</strong> tool fills the PI and ENERGY columns in the event FITS file. PI is<br />
the same as energy, but expressed in units of 0.1 keV. If the event file does not have a PI column,<br />
then such a column is added to the file.<br />
<strong>The</strong> default is to fill in or create the PI column in the input file, but if the optional “outfile”<br />
argument is given, a new file with the PI column filled is created.<br />
D.6.4 PARAMETERS<br />
infile [filename ]<br />
Input file name. <strong>The</strong>re is no need to include the extension name of the HDU since bateconvert<br />
only operates on an HDU with name “EVENTS.” Unless an outfile name is specified,<br />
bateconvert will automatically fill in the PI column in the infile and/or create a PI column if<br />
none exists.<br />
calfile [filename ]<br />
Name of the calibration file. This is a required parameter. This file is expected to contain the<br />
gain and offset derived in flight. This file is used for both LINEAR and QUADRATIC energy<br />
conversion. <strong>The</strong> file must exist and must include a “<strong>BAT</strong> MAP” extension with “GAIN” and<br />
“OFFSET,” columns containing calibration parameters in the proper format. If zeroit==YES<br />
then the calfile need not exist and calfile can be set to NONE (or left off the command line).<br />
residfile [filename ]<br />
Name of the file containing the residuals between a quadratic pulser gain fitting and a linear<br />
fitting. This is a required parameter. This file is typically derived from ground processing.<br />
This file is used for all but the LINEAR energy conversion. <strong>The</strong> file must exist and must<br />
include a “<strong>BAT</strong> MAP” extension with “GAIN2”, “GAIN,” “OFFSET” columns containing<br />
calibration parameters in the proper format and had the appropriate value of the GAINMETH<br />
keyword. If calmodes CUBIC, DIRECTCUBIC, or FIXEDDAC are used, the file must also<br />
have a GAIN3 column. If DIRECTCUBIC or FIXEDDAC are used, the file must have
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