SWIFT BAT Calibration Files: Release History
SWIFT BAT Calibration Files: Release Notes History CURRENT CALDB BAT release =========================================================== Update 12 Mar 2024 *) bcf/swbbadpix20041120v009.fits.gz bcf/swbbadtimes20041120v009.gti Update of the bad pixels and bad time slists valid unil =========================================================== Previous CALDB BAT releases=========================================================== Update 16 Oct 2017 *) bcf/swbbadpix20041120v005.fits.gz bcf/swbbadpix20041120v006.fits.gz bcf/swbbadpix20041120v007.fits.gz bcf/swbbadpix20041120v008.fits.gz *) bcf/swbbadtimes20041120v006.gti bcf/swbbadtimes20041120v007.gti bcf/swbbadtimes20041120v008.gti *) bcf/swbpulsecal20041120v001.fits bcf/swbpulsecal20050101v001.fits bcf/swbpulsecal20050601v001.fits bcf/swbpulsecal20050701v001.fits bcf/swbpulsecal20060101v001.fits bcf/swbpulsecal20060601v001.fits bcf/swbpulsecal20060701v001.fits bcf/swbpulsecal20070101v001.fits bcf/swbpulsecal20070601v001.fits bcf/swbpulsecal20070701v001.fits bcf/swbpulsecal20080101v001.fits bcf/swbpulsecal20080601v001.fits bcf/swbpulsecal20080701v001.fits bcf/swbpulsecal20090101v001.fits bcf/swbpulsecal20090701v001.fits bcf/swbpulsecal20100101v001.fits bcf/swbpulsecal20100701v001.fits bcf/swbpulsecal20110101v001.fits bcf/swbpulsecal20110701v001.fits bcf/swbpulsecal20120101v001.fits bcf/swbpulsecal20120701v001.fits bcf/swbpulsecal20130101v001.fits bcf/swbpulsecal20130701v001.fits bcf/swbpulsecal20140101v001.fits bcf/swbpulsecal20140701v001.fits bcf/swbpulsecal20150101v001.fits bcf/swbpulsecal20150701v001.fits bcf/swbpulsecal20160101v001.fits bcf/swbpulsecal20160701v001.fits bcf/swbpulsecal20170101v001.fits bcf/swbpulsecal20170701v001.fits Update of bad pixels, bad times and gain files. The bad times includes revisions since Version 5 last released on 2009-01-30. The bad pixels indludes revisions since Version 4 last released on 2008-10-26. The gain has been updated from the start of mission. Instead of a single file, the gain has been calculated in intervals of six months. =========================================================== =========================================================== Update 30 Jan 2009 * bcf/swbbadtimes20041120v005.gti VERSION 5 This 'global bad time' file is the same as version 4, except for the correction of the MJDREF* keywords, which had a small 3.7 second error in all previous versions. =========================================================== =========================================================== Update 03 Dec 2008 * bcf/swbbadpix20041120v004.fits.gz bcf/swbbadtimes20041120v004.gti This is an updated file with ongoing updated information. In particular, it records changes during the BAT reboot and recovery in October 2008. * bcf/swbparams20030101v009.fits cpf/swbsyserr20030101v003.fits These are updated files with ongoing updated information. =========================================================== =========================================================== Update 06 Mar 2008 * bcf/swbbadpix20041120v003.fits.gz VERSION 3 This is an updated file with ongoing updated information. In particular, it records DM threshold changes during September 2007. * bcf/swbbadtimes20041120v003.gti This is an updated file with ongoing updated information. =========================================================== =========================================================== Update 2007-09-24 * bcf/swb20041120v002.teldef bcf/swb20041209v001.teldef bcf/swb20041213v001.teldef bcf/swb20041215v001.teldef bcf/swb20070828v001.teldef bcf/swb20070904v001.teldef bcf/swb20070911v001.teldef BAT instrument TELDEF alignment files have been updated to account for changes in the star tracker alignment (the effective spacecraft boresight). These changes were implemented by the flight operations team in attempts to recover from the August 2007 safe-hold event. As a part of this update, all star tracker alignment updates have been accounted for, even ones early in the mission (December 2004). Here is the summary of changes: swb20021001v002.teldef PRE-LAUNCH (no change) swb20041120v001.teldef OBSOLETED swb20041120v002.teldef NEW FILE (represents post-launch defaults) swb20041209v001.teldef NEW FILE swb20041213v001.teldef NEW FILE swb20041215v001.teldef NEW FILE (represents nominal 2004-2007 default) swb20070828v001.teldef NEW FILE (first change post-safe-hold) swb20070904v001.teldef NEW FILE swb20070911v001.teldef NEW FILE =========================================================== =========================================================== Update 2007-07-13 * bcf/swbbkgspec20041120v002.pha VERSION 2 This is a minor change to the formatting of the file, which removes the EBOUNDS extension from the CALDB index file. This works around a strange problem in the CALDB query interface. Also, some HISTORY keywords have been removed to make the file contents more readable. The numerical contents of the file have not been changed. =========================================================== =========================================================== Update 22 May 2007 * bcf/wbbkgspec20041120v001.pha VERSION 1 This is a new calibration file. It contains a "typical" background spectrum, both the entire array rate and the rate per enabled detector. The background provided corresponds to "low" background outside of SAA. This file is used in conjunction with the task 'batphasimerr' to make simulated spectra with proper error bars. The data are stored in the file as a standard OGIP Type-1 spectrum with standard survey energy binning. The columns are: ||Name||Description|| ||CHANNEL||Channel number|| ||RATE||Total array count rate|| ||STAT_ERR||Statistical error of RATE|| ||RATE_DET||Rate per enabled detector|| The file also has a standard EBOUNDS extension appended after the spectral extension. This file must be released with build 21. * bcf/swbbadpix20041120v002.fits.gz VERSION 2 This is an updated file with ongoing updated information. In particular, it records changes during reboots in December 2006 and March 2007. * bcf/swbbadtimes20041120v002.gti VERSION 2 This is an updated file with ongoing updated information. In particular, it records changes during reboots in December 2006 and March 2007. =========================================================== =========================================================== Update 2006-10-14 * bcf/swbbadpix20041120v001.fits.gz VERSION 1 New calibration file. The file contains a series of maps that are a crude mission-level quality maps which indicate which detectors were known to have issues or problems which affect science analysis. This file is valid from software release Swift 2.6. * bcf/swbbadtimes20041120v001.gti VERSION 1 New calibration file. The file contains the global good and bad time intervals for BAT science analysis. The user should use this file in conjunction with the task 'batglobalgti' to chose the desired quality level. This file is valid from software release Swift 2.6. =========================================================== =========================================================== Update 2006-05-30 * bcf/swbdistort20041120v001.fits VERSION 1 New calibration file This file contains the distortion map of the BAT. This file is valid only for software releases after Swift 2.4. =========================================================== =========================================================== Update 2005-11-03 * bcf/swbparams20030101v008.fits VERSION 8 This file contains updated response matrix parameters based on an improved analysis of on- and off-axis Crab observations. This file applies to all observations, and is not tied to a particular software release. =========================================================== =========================================================== Update 2005-10-06 * bcf/swbaperflux20041120v001.fits VERSION 1 (NEW FILE) This new file is a slightly trimmed aperture map, optimized for reproducing the fluxes of cosmic sources. Because of irregular and unknown passive materials which intrude into the edges of the field of view, the fluxes from the "full" aperture map (swbaperture*) will sometimes be degraded, especially if the source is far off axis. This map should reduce the degradation significantly, and is recommended to be used in place of the swbaperture* file. It has the keyword value APERTYPE = 'FLUX' * bcf/swbaperedge20041120v001.fits VERSION 1 (NEW FILE) This new file shows the trimmed regions that were used to reduce the swbaperture* file to the swbaperflux* file. When used with the batmaskwtimg task, this aperture map shows which portions of the array will be illuminated by irregular passive materials, and should thus be masked out for bright sources. The file has the keyword value APERTYPE = 'MASK_EDGES' * bcf/swbaperture20041120v002.fits VERSION 2 This new version of the full aperture map is the same as version 1, except that it has more pad cells around the edges of the map. The APERTYPE = 'DETECTION' keyword is also present. The BAT team now considers this map to *not* be optimal for most BAT analysis work, because of the presence of irregular passive materials which intrude into the edges of the field of view. Use swbaperflux* instead. * bcf/swbaperture20030101v003.fits VERSION 3 This version is the same as version 2, with the addition of the APERTYPE = 'DETECTION' keyword (see above). * bcf/swbparams20030101v006.fits VERSION 6 New keywords named SIGMA_* which give batdrmgen information it needs to produce an energy-dependent noise resolution. Revised GAIN_* keywords that are used by batdrmgen to adjust the model gain so that the peaks line up right (to account for the new noise model). A set of new PSV_0 and CCFUNP* keywords so that the fudge correction is appropriate for the cosine-correction change and the noise resolution change. This file applies to all observations. ** This file is meant to be released with Swift build 16. ** * bcf/swbparams20030101v007.fits VERSION 7 New parameter file which supercedes version 6. This file contains a new parameter, PB_EDGEN, which controls how lead tile edges are treated. The new parameter file has been optimized to fit the Crab for multiple angles and at all energies from 15-150 keV. This file applies to all observations. * cpf/swbresponse20030101v006.rsp VERSION 6 The swbresponse file is a typical on-axis response with the above changes to the swbparams file, and batdrmgen v3.0. This file applies to all observations. ** This file is meant to be released with Swift build 16. ** * cpf/swbresponse20030101v007.rsp VERSION 7 The swbresponse file is a typical on-axis response with the above changes to the swbparams file, and batdrmgen v3.1. This file applies to all observations. ** These files are meant to be released with Swift build 16. ** =========================================================== =========================================================== Update 14 Jul 2005 * swbsyserr20030101v002.fits VERSION 2 A slight improvement to the systematic error vector to be used with spectral fitting. This file applies to all observations. Update 24 Jun 2005 This calibration file update extends the upper limit of the incident photon energy range of batdrmgen to 10 MeV. * swbdepthdis20030101v003.fits VERSION 3 Contains additional information about energy deposition in CZT to higher energies than in version 1. This file applies to all observations. * swbparams20030101v005.fits VERSION 5 Keywords have been adjusted so that the passive material absorption model is valid up through 10 MeV. Modified CFUNP* and PSV_0 and GAIN_* keywords so that they give the appropriate correction function for the new gain adjustment method of batdrmgen 2.9. This file applies to all observations. * swbresponse20030101v005.rsp VERSION 5 This template response matrix is used for the incident photon energy grid. Version 5 has additional energy bins which extend up to 9000 keV. This file applies to all observations. =========================================================== =========================================================== Update 28 Mar 2005 * cpf/swbresponse20030101v004.rsp VERSION 4 This file has been updated for the on-axis response delivered in Swift 2.0. While the response matrix contents have changed, the energy bins used by batdrmgen have not changed. This file applies to all observations. Update 27 Mar 2005 * cpf/swbsyserr20030101v001.fits This is a new file to the BAT CALDB area which contains the estimated systematic error due to the BAT response matrix. It is essentially formatted according to the OGIP standard for spectral files, but with a single interesting column, SYS_ERR. This contains the fractional systematic error for a standard 80-bin spectrum. The user is meant to append the column to their spectrum, as in: ftpaste input.pha swbsyserr20030101v001.fits'[col SYS_ERR]' output.pha Once this is done, output.pha is ready for use with XSPEC. Update 18 Mar 2005 * bcf/swbparams20030101v004.fits This response matrix file has been improved based on new fits to the ground calibration data, including mu-tau values for some blocks that were not available until recently. Passive absorption coefficients have been updated. New correction function coefficients have been developed. The exponential tail model has been removed from the response. This file applies to all observation times, but REQUIRES BUILD 14 SOFTWARE (Swift ver 2.0). * bcf/swbpulsecal20030101v003.fits * bcf/swbquadres20030304v003.fits This pair of files contains new voltage-to-ADU conversion coefficients, including a new FULLCUBIC cubic model, derived from ground calibration data. These files apply to observations at all times. They DEPEND ON BUILD 14 SOFTWARE (Swift ver 2.0). =========================================================== =========================================================== Update 16 Feb 2005 * swbgsecal20030304v003.fits Incorrect values were inadvertently included in version 2 of this file. This file contains the data of version 1, with the keyword clean-ups of version 2. This file is used for ground calibration only, not flight. Clean-up of the keywords and columns. =========================================================== =========================================================== Updated 31 Jan 2005 * cpf/swbresponse20030101v003.rsp VERSION 3 On-axis response matrix. It is primarily used in the response matrix generation, to choose the incident photon energy binning. However it can also be used by general users for simulations. Changes to the 'params' calibration file have improved the response knowledge below 20 keV. These changes have been folded into this template response using batdrmgen v2.5. Updated 20 Jan 2005 * bcf/swbparams20030101v003.fits VERSION 3 Contains corrections to the model coefficients for the attenuation of passive materials in the field of view, based on improved knowledge (esp. below 20 keV). Also contains corrections to the mu-tau detector physics coefficients. Applies to all observation times. =========================================================== ============================================================== Updated 24 Dec 2004 Overview * New files pertaining to BAT boresight correction * bcf/swbaperture20041120v001.fits Revised content based on in-flight calibration of the BAT boresight. Contains revised focal length and mask shift values. Validity date: post launch [previous file is still valid before launch] * bcf/swb20041120v001.teldef Revised content based on in-flight calibration of the BAT boresight. Contains new misalignment matrix. Validity date: post launch [previous file is still valid before launch] Updated 19 Dec 2004 Overview * One new file, swbpulseflt20040101v001.fits, is introduced * This file is *required* for Swift build 11 (Swift ver 1.1) analysis * bcf/swbpulseflt20040101v001.fits NEW FILE TYPE. Contains actual on-board pulser DAC to energy conversion coefficients. The current file contains the default per-sandwich average coefficients. * bcf/swb20020101v002.teldef New version, now in accord with HEASARC format recommendations; units of DETX/Y changed to "pixel" (NOTE: no software uses the units, so this is for information only) * bcf/swb4ebound20030101v002.fits bcf/swb80ebound20030101v002.fits New versions, now in accord with HEASARC format recommendations. Actual contents unchanged from versions 1. * bcf/swbaperture20030101v002.fits New versions, now in accord with HEASARC format recommendations. Actual contents unchanged from versions 1. * bcf/swbdepthdis20030101v002.fits New version, now in accord with HEASARC format recommendations. Actual contents unchanged from swbdepthdis20040326v001.fits. One TUNIT value changed. * bcf/swbgsecal20030304v002.fits New version base on new knowledge of the ground calibration. This file is used for ground calibration only, not flight. Clean-up of the keywords and columns. * bcf/swbparams20030101v002.fits New version, now in accord with HEASARC format recommendations. Actual contents unchanged from version 2. * bcf/swbpulsecal20030101v002.fits bcf/swbquadres20030304v002.fits New versions, based on improved knowledge of electronic pulser and energy calibration. ============================================================== ============================================================== First release ============================================================== |
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Last modified: Tuesday, 12-Mar-2024 19:11:18 EDT