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

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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
214 APPENDIX E. BAT SOFTWARE REVISION HISTORY batbinevt * PARAMETER CHANGE: outtype, as detailed below * new output format: type I spectral format (for outtype="PHA1") * the type II format can be output by using outtype=PHA2 * when outtype=PHA is given, then the output is either type I, if only one output spectrum is produced OR type II, if more than one output spectrum is produced * THUS, THE DEFAULT SPECTRUM TYPE HAS CHANGED FROM TYPE II TO TYPE I * a warning is produced if the users asks for a COUNTS spectrum of type II format; this is particularly poorly supported by OGIP/HEASARC downstream software * remove some confusing WCS keywords held over from the original input * handle cases where the input file is corrupted or mishandled; for example, if the GTI extension is missing from a DPH * proper exposure-type keywords are written to the GTI and EBOUNDS extensions batcelldetect * BUG FIX in the handling of multiple images in tangent plane coordinates * BUG FIX in the handling of long catalog NAMEs and keyword strings * TDISPn keywords are written so that catalog entries are displayed more readably * the task now uses the WCSLIB coordinate routines more fully batclean * PARAMETER CHANGE: several apertures can be chosen from CALDB; use the "CALDB:flux" aperture by default * NEW PARAMETER: snrcol so the user can choose which column to use for S/N thresholding * BUG FIXes in the handling of long catalog NAMEs and null values * some code cleanups batdrmgen * Added a better gain correction method to improve energy scale * Added more realistic energy-dependent resolution * The task now can correct for the "tile edge effect" more flexibly * REQUIRES new CALDB released with build 16 bateconvert * Changed limits on energy to -10 to +3276.8 keV baterebin * NEW PARAMETER detmask, an optional input detector quality map * BUG FIXes to the handling of the upper and lower integral bins * Reduced number and apparent urgency of error messages * Added more diagnostic information batfftimage
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The SWIFT BAT Software Guide Versio
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ii CONTENTS 4.4 How Sky Fluxes are
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iv CONTENTS 6 BAT Analysis Issues 5
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vi CONTENTS D.1.6 SEE ALSO . . . .
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viii CONTENTS D.10.2 USAGE . . . .
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x CONTENTS D.18.5 EXAMPLES . . . .
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xii CONTENTS
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2 CHAPTER 1. INTRODUCTION • Appen
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4 CHAPTER 2. BAT INSTRUMENT Figure
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8 CHAPTER 2. BAT INSTRUMENT The The
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12 CHAPTER 3. BAT OPERATING MODES A
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86 APPENDIX B. BAT FITS KEYWORDS
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90 APPENDIX C. BAT ACRONYM AND TERM
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The SWIFT BAT Software Guide Version 6.3 30 ... - HEASARC - Nasa

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