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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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D.1. <strong>BAT</strong>BINEVT 97<br />

outfile [filename ]<br />

Output light curve or spectrum file name.<br />

outtype [string ]<br />

Chooses output format of either light curve (outtype=“LC”), spectrum (outtype=“PHA”,<br />

“PHA1”, “PHA2”), detector plane histogram (outtype=“DPH”), detector plane image (outtype=“DPI”),<br />

or detetector plane image table (outtype=“DPITAB”). <strong>The</strong> difference between<br />

DPI and DPITAB is that DPI output has one detector image per FITS image extension and<br />

the later has one image per FITS row in a single extension.<br />

timedel = 1.0 [real ]<br />

Select a time bin size, in seconds. If time binning is uniform, then a value of timedel=0.0<br />

causes the tool to accumulate all data into a single time bin. If time binning algorithm is<br />

“snr”, then a non-zero bin size indicates the maximum bin size regardless of the signal to<br />

noise ratio. A zero value of timedel indicates no maximum bin size.<br />

timebinalg = uniform [string ]<br />

One of “uniform”, for uniform binning, “snr”, for constant signal to noise ratio, “gti” for time<br />

binning according to the intervals in the GTI file, “infile” to mimic the input file binning<br />

(binned input data only), or “matchlc” to match an existing light curve. Only the first<br />

character of the algorithm type needs to be specified.<br />

energybins = “-” [string ]<br />

Energy bin ranges, expressed as a comma-separated list of floating point number ranges, a<br />

file name containing energy bin ranges, INFILE, FILEBINS or CALDB.<br />

Comma-separated list Each bin in the comma-separated list is specified as EMIN1-<br />

EMAX1,EMIN2-EMAX2,... (in units of keV). Pulse heights which satisfy EMIN[n] ≤ E<br />

< EMAX[n] are considered to be in bin n. If EMIN[n] is missing, then it is assumed to<br />

be 0. If EMAX[n] is missing it is assumed to be the maximum energy. A value of “-”<br />

indicates single all-inclusive energy bin. At least one bin must be given to make even a<br />

light curve, and bins must not overlap.<br />

File name <strong>The</strong> name of a FITS file with an EBOUNDS extension (such as a response<br />

matrix), containing columns E MIN and E MAX (in keV), or an ASCII file containing<br />

a comma-separated energy bin list as described above.<br />

FILEBINS or INFILE FILEBINS or INFILE indicates that the energy binning of the<br />

first input file is used. (this only applies when the inputs are DPHs, and the DPH must<br />

have an EBOUNDS extension).<br />

CALDB If CALDB is specified, then the CALDB database is consulted for energy bins. A<br />

standard 4-channel and 80-channel set of binnings is chosen depending on whether the<br />

outtype is LC or PHA, respectively. By using CALDB:n, a specific n-channel binning<br />

can be selected (provided it exists in CALDB).<br />

(gtifile = NONE) [string ]<br />

Name of goodtime interval file or time bin file. If the time binning algorithm is “gti” or<br />

“matchlc” then this file is used to establish the time bins. Normally, this file is a standard<br />

GTI. However, for time binning algorithm “matchlc”, this file should be standard OGIP light<br />

curve. <strong>The</strong> user-supplied good times are logically intersected with the good times of the input<br />

files (i.e. only overlap portions are used). <strong>The</strong> default of NONE implies that all good time<br />

intervals from the input files will be used.

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