SIMPLE = T / file does conform to FITS standard BITPIX = 8 / number of bits per data pixel NAXIS = 0 / number of data axes EXTEND = T / FITS dataset may contain extensions COMMENT FITS (Flexible Image Transport System) format is defined in 'AstronomyCOMMENT and Astrophysics', volume 376, page 359; bibcode: 2001A&A...376..359H TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'BAT ' / Instrument name OBS_ID = '00090053089' / Observation ID TARG_ID = 90053 / Target ID SEG_NUM = 89 / Segment number TIMESYS = 'TT ' / time system MJDREFI = 51910 / MJD reference day 01 Jan 2001 00:00:00 MJDREFF = 0.00074287037 / MJD reference (fraction of day) 01 Jan 2001 00:CLOCKAPP= F / If clock correction are applied (F/T) TIMEUNIT= 's ' / Time unit for timing header keywords TSTART = 2.506809398006000E+08 / time start TSTOP = 2.506867900815000E+08 / time stop DATE-OBS= '2008-12-11T06:15:13' / Start date of observations DATE-END= '2008-12-11T11:13:09' / End date of observations ORIGIN = 'NASA/GSFC' / origin of fits file CREATOR = 'extractor v4.78' / Extractor TLM2FITS= 'V7.13' / Telemetry converter version number DATE = '2008-12-17T08:22:34' / file creation date (YYYY-MM-DDThh:mm:ss UT) NEVENTS = 788266 / Number of events DATAMODE= 'Event ' / Datamode OBJECT = 'NGC4395 ' / Object name ONTIME = 8.196184000372887E+01 / On-source time EXPOSURE= 8.196184000372887E+01 / Exposure time LIVETIME= 8.196184000372887E+01 / On-source time TELAPSE = 5.850280900001526E+03 / elapsed time MJD-OBS = 5.481140050908102E+04 / MJD of data start time TIMEREF = 'LOCAL ' / reference time EQUINOX = 2.000E+03 / Equinox of celestial coord system RADECSYS= 'FK5 ' / celestial coord system USER = 'apsop ' / User name of creator FILIN001= 'sw00090053089bevshsp_uf.evt' / Input file name TIMEZERO= 0.000000000000000E+00 / Time Zero CHECKSUM= '96GAI6F196F8G6F8' / HDU checksum updated 2008-12-17T08:33:18 DATASUM = ' 0' / data unit checksum updated 2008-12-17T08:22:34 PROCVER = '3.12.4 ' / Processing script version SOFTVER = 'Hea_19Sep2007_V6.3.2_Swift_Rel2.7.2(Bld21.2)_19Sep2007' / HEASOFT andCALDBVER= 'b20070924_u20071106_x20071101_m20071023' / CALDB index versions used SEQPNUM = 7 / Number of times the dataset processed RA_OBJ = 186.454 / [deg] R.A. Object DEC_OBJ = 33.5467 / [deg] Dec Object RA_PNT = 186.45394621105 / [deg] RA pointing DEC_PNT = 33.553253608225 / [deg] Dec pointing PA_PNT = 112.99471311011 / [deg] Position angle (roll) CATSRC = F ATTFLAG = '100 ' / Orgin of attitude information UTCFINIT= -3.32510000000000 / [s] UTCF at TSTART END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 26 / width of table in bytes NAXIS2 = 80 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 4 / number of fields in each row TTYPE1 = 'CHANNEL ' / Spectrum channel number TFORM1 = 'I ' / data format of field: 2-byte INTEGER TTYPE2 = 'RATE ' / Spectrum rate TFORM2 = 'D ' / data format of field: 8-byte DOUBLE TUNIT2 = 'count/s ' / physical unit of field TTYPE3 = 'STAT_ERR' / Spectrum statistical error TFORM3 = 'D ' / data format of field: 8-byte DOUBLE TUNIT3 = 'count/s ' / physical unit of field EXTNAME = 'SPECTRUM' / name of this binary table extension HDUCLASS= 'OGIP ' / Conforms to OGIP/GSFC standards HDUCLAS1= 'SPECTRUM' / Contains spectrum GAINAPP = T / Gain correction has been applied TIMESYS = 'TT ' / time measured from MJDREFI = 51910 / MJD reference day MJDREFF = 7.428703700000000E-04 / MJD reference (fraction of day) TIMEREF = 'LOCAL ' / reference time TASSIGN = 'SATELLITE' / Time assigned by clock TIMEUNIT= 's ' / unit for time keywords TIERRELA= 1.0E-8 / [s/s] relative errors expressed as rate TIERABSO= 1.0 / [s] timing precision in seconds TSTART = 250668939.2 TSTOP = 250668944.2 DATE-OBS= '2008-12-11T06:15:13' / Start date of observations DATE-END= '2008-12-11T11:13:09' / End date of observations CLOCKAPP= F / default TELAPSE = 5. / [s] Total elapsed time from start to stop ONTIME = 5. / [s] Accumulated on-time LIVETIME= 5. / [s] ONTIME multiplied by DEADC EXPOSURE= 5. / [s] Accumulated exposure DEADC = 1. / Dead time correction factor TIMEPIXR= 0. / Time bin alignment TIMEDEL = 100.0E-6 / [s] time resolution of data TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'BAT ' / Instrument name DATAMODE= 'Event ' / Datamode OBS_ID = '00090053089' / Observation ID TARG_ID = 90053 / Target ID SEG_NUM = 89 / Segment number EQUINOX = 2.000E+03 / Equinox of celestial coord system RADECSYS= 'FK5 ' / celestial coord system OBS_MODE= 'POINTING' ORIGIN = 'NASA/GSFC' / origin of fits file CREATOR = 'batbinevt 1.48' / Program that created this FITS file TLM2FITS= 'V7.13' / Telemetry converter version number DATE = '2008-12-17T08:22:34' / file creation date (YYYY-MM-DDThh:mm:ss UT) LDPEBINS= 0 / LDP Energy Bin count LDPTYPE = 11 / LDP Type Code LDPGAIN = 415. / LDP Gain Index LDPOFFST= 1070. / LDP Offset Index LDPNA1 = 'e7f1prhz.evl' / LDPNAME of nn'th processed LDP LDPNA2 = 'e7f25gkz.evl' / LDPNAME of nn'th processed LDP LDPNA3 = 'e7f2b6dz.evl' / LDPNAME of nn'th processed LDP HISTORY ApID(567) LDP(45845) Row 1 to 1139088 HISTORY ApID(567) LDP(46088) Row 1129859 to 2258444 HISTORY ApID(567) LDP(46211) Row 2248562 to 3461674 HISTORY No single packet ApIDs contributed. HISTORY LDP(567,45845) File: swift_ldp_015fc559_0b55_567_45845.ccsds HISTORY Product(45845) BAT Pages(7009) Found Pages(7009) HISTORY Valid Pages(7009) Simulated Pages (0) Missing Pages(0) HISTORY LDP(567,46088) File: swift_ldp_015fc559_0b55_567_46088.ccsds HISTORY Product(46088) BAT Pages(6964) Found Pages(6964) HISTORY Valid Pages(6964) Simulated Pages (0) Missing Pages(0) HISTORY LDP(567,46211) File: swift_ldp_015fc559_0b55_567_46211.ccsds HISTORY Product(46211) BAT Pages(7349) Found Pages(7349) HISTORY Valid Pages(7349) Simulated Pages (0) Missing Pages(0) HISTORY TASK: FMEMSORT on FILENAME: sw00090053089bevshto_uf.evt[EVENTS] HISTORY fmemsort4.1 at 2008-12-17T08:19:30 GAINMETH= 'FIXEDDAC' / Cubic ground gain/offset correction using DAC-bHISTORY HISTORY START PARAMETER list for bateconvert_4.3 at 2008-12-17T08:21:48 HISTORY HISTORY P1 infile = sw00090053089bevshsp_uf.evt HISTORY P2 calfile = sw00035701009bcbo042eg019f.fits HISTORY P3 residfile = CALDB HISTORY P4 pulserfile = CALDB HISTORY P5 fltpulserfile = CALDB HISTORY P6 outfile = NONE HISTORY P7 calmode = INDEF HISTORY P8 zeroit = no HISTORY P9 scaled_energy = yes HISTORY P10 clobber = yes HISTORY P11 chatter = 3 HISTORY P12 history = yes HISTORY P13 mode = hl HISTORY END PARAMETER list for bateconvert_4.3 HISTORY TIMEZERO= 0.000000000000000E+00 / Time Zero OBJECT = 'NGC4395 ' / Object name MJD-OBS = 5.481140050908102E+04 / MJD of data start time USER = 'apsop ' / User name of creator NPIXSOU = 4.9478000000E+04 / Number of pixels in selected region PROCVER = '3.12.4 ' / Processing script version SOFTVER = 'Hea_19Sep2007_V6.3.2_Swift_Rel2.7.2(Bld21.2)_19Sep2007' / HEASOFT andCALDBVER= 'b20070924_u20071106_x20071101_m20071023' / CALDB index versions used SEQPNUM = 7 / Number of times the dataset processed RA_OBJ = 186.454 / [deg] R.A. Object DEC_OBJ = 33.5467 / [deg] Dec Object RA_PNT = 186.45394621105 / [deg] RA pointing DEC_PNT = 33.553253608225 / [deg] Dec pointing PA_PNT = 112.99471311011 / [deg] Position angle (roll) CATSRC = F ATTFLAG = '100 ' / Orgin of attitude information UTCFINIT= -3.32510000000000 / [s] UTCF at TSTART BCALFILE= 'sw00090053089bgocb.hk.gz' / BAT total linear gain/offset file name BRESFILE= 'swbquadres20030304v003.fits' / BAT Residual from linear gain file namBPULFILE= 'swbpulsecal20080601v001.fits' / BAT Ground Pulser DAC to keV file namBFLTFILE= 'swbpulseflt20040101v001.fits' / BAT Flight Pulser DAC to keV file namHISTORY HISTORY START PARAMETER list for bateconvert_6.3 at 2014-11-11T14:41:51 HISTORY HISTORY P1 infile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reHISTORY P1 proc/GRB081211B/00090053089/bat/event/sw00090053089bevshpo_uf.evt HISTORY P2 calfile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_rHISTORY P2 eproc/GRB081211B/00090053089/bat/hk/sw00090053089bgocb.hk.gz HISTORY P3 residfile = CALDB HISTORY P4 pulserfile = CALDB HISTORY P5 fltpulserfile = CALDB HISTORY P6 outfile = NONE HISTORY P7 calmode = FIXEDDAC HISTORY P8 zeroit = NO HISTORY P9 scaled_energy = YES HISTORY P10 clobber = NO HISTORY P11 chatter = 2 HISTORY P12 history = YES HISTORY P13 mode = ql HISTORY END PARAMETER list for bateconvert_6.3 HISTORY HISTORY CFITSIO used the following filtering expression to create this table: HISTORY /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB0812HISTORY 11B/00090053089/bat/event/sw00090053089bevshpo_uf.evt[EVENTS][gtifilter(HISTORY "/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB081HISTORY 211B/00090053089-results/events/sw00090053089b_all.evt-totgti.gti",TIME)HISTORY ] HISTORY HISTORY START PARAMETER list for ftmerge_2.20 at 2014-11-11T14:41:53 HISTORY HISTORY P1 (infile = @/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_HISTORY P1 reproc/GRB081211B/00090053089-results/events/sw00090053089b_all.evt-eHISTORY P1 ts.lis) HISTORY HISTORY START FILE listing: sw00090053089b_all.evt-events.lis HISTORY HISTORY F1 /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB0HISTORY F1 81211B/00090053089/bat/event/sw00090053089bevshpo_uf.evt[EVENTS][gtifHISTORY F1 er("/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/HISTORY F1 081211B/00090053089-results/events/sw00090053089b_all.evt-totgti.gti"HISTORY F1 ME)] HISTORY F2 /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB0HISTORY F2 81211B/00090053089/bat/event/sw00090053089bevshsl_uf.evt[EVENTS][gtifHISTORY F2 er("/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/HISTORY F2 081211B/00090053089-results/events/sw00090053089b_all.evt-totgti.gti"HISTORY F2 ME)] HISTORY END FILE listing: sw00090053089b_all.evt-events.lis HISTORY HISTORY P2 outfile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_rHISTORY P2 eproc/GRB081211B/00090053089-results/events/sw00090053089b_all.evt HISTORY P3 columns = * HISTORY P4 insertrow = 0 HISTORY P5 lastkey = HISTORY P6 copyall = YES HISTORY P7 skipbadfiles = NO HISTORY P8 clobber = YES HISTORY P9 chatter = 1 HISTORY P10 history = YES HISTORY P11 mode = ql HISTORY END PARAMETER list for ftmerge_2.20 HISTORY FILIN001= '/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB'FILIN002= '/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB'TRIGTIME= 250668905.325 / [s] MET Trigger Time BATCREAT= 'batmaskwtevt 1.22' / BAT Program that modified this FITS file MASKBATX= 0. / [cm] Center of mask tile plane in BAT_X MASKBATY= 0. / [cm] Center of mask tile plane in BAT_Y MASKBATZ= 100.3 / [cm] Top of mask tile plane in BAT_Z MASKOFFX= -0.145 / [cm] Offset of mask in BAT_X MASKOFFY= 0.114 / [cm] Offset of mask in BAT_Y MASKOFFZ= 0.05 / [cm] Offset of mask in BAT_Z MASKX0 = -124.25 / [cm] Position of mask corner in BAT_X MASKY0 = -63.25 / [cm] Position of mask corner in BAT_Y MASKPSI0= 0. / [deg] Mask Euler rotation about X-axis MASKPSI1= 0. / [deg] Mask Euler rotation about Y-axis MASKPSI2= 0. / [deg] Mask Euler rotation about Z-axis MASKCELX= 0.5 / [cm] Size of mask cell in BAT_X MASKCELY= 0.5 / [cm] Size of mask cell in BAT_Y MASKCELZ= 0.1 / [cm] Size of mask cell in BAT_Z DETBATX = 0. / [cm] Center of detector plane in BAT_X DETBATY = 0. / [cm] Center of detector plane in BAT_Y DETBATZ = 0.35 / [cm] Top of detector plane in BAT_Z DETOFFX = 0. / [cm] Offset of detector plane in BAT_X DETOFFY = 0. / [cm] Offset of detector plane in BAT_Y DETOFFZ = 0. / [cm] Offset of detector plane in BAT_Z DETCELX = 0.42 / [cm] Size of detector pitch cell in BAT_X DETCELY = 0.42 / [cm] Size of detector pitch cell in BAT_Y DETCELZ = 0.2 / [cm] Size of detector pitch cell in BAT_Z DETSIZEX= 0.4 / [cm] Size of detector in BAT_X DETSIZEY= 0.4 / [cm] Size of detector in BAT_Y DETSIZEZ= 0.2 / [cm] Size of detector in BAT_Z BAT_RA = 168.2646 / [deg] Right ascension of source BAT_DEC = 53.83 / [deg] Declination of source BAT_XOBJ= 7321772.57420169 BAT_YOBJ= 132197.112304284 BAT_ZOBJ= 10000000 COORTYPE= 'sky ' / Type of coordinates specified for weighting FFAPP = T / Projection correction applied? NFAPP = F / Near-field correction applied? ~(COS+RSQ) PCODEAPP= T / Partial coding correction applied? PCODEFR = 0.749872446060181 NGPIXAPP= T / Normalized by number of detectors? NGOODPIX= 25475 MSKWTSQF= 1.17821194712189 MSKWTAPP= T / Correction for mask weight technique applied? BDISTAPP= F / BAT image corrected for distortions? APERTURE= 'swbaperflux20041120v001.fits' / BAT aperture file name BTELDEF = 'swb20070911v001.teldef' / BAT teldef file name BACKAPP = T / Was background correction applied? HDUCLAS2= 'NET ' / Spectrum is background subtracted HDUCLAS3= 'RATE ' / Spectrum is count/s PHAVERSN= '1992a ' / Version of spectrum format HDUVERS = '1.2.0 ' / Version of spectrum header FLUXMETH= 'WEIGHTED' / Flux extraction method AREASCAL= 1. / Nominal effective area BACKSCAL= 1. / Background scale factor CORRSCAL= 0. / Correction scale factor BACKFILE= 'none ' / Background FITS file CORRFILE= 'none ' / Correction FITS file RESPFILE= '/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB'ANCRFILE= 'none ' / Effective Area file (ARF) XFLT0001= 'none ' / XSPEC selection filter description QUALITY = 0 / Data quality flag GROUPING= 0 / Spectra are not grouped POISSERR= F / Poisson errors do not apply DETCHANS= 80 / Total number of detector channels available CHANTYPE= 'PI ' / Pulse height channel type TLMIN1 = 0 / Minimum legal value TLMAX1 = 79 / Maximum legal value TOTCOUNT= 28264752 / Total number of counts HISTORY HISTORY START PARAMETER list for batbinevt_1.48 at 2016-01-10T18:15:28 HISTORY HISTORY P1 infile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reHISTORY P1 proc/GRB081211B/00090053089-results/events/sw00090053089b_all.evt HISTORY P2 outfile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_rHISTORY P2 eproc/GRB081211B/remake_spec_cflux/spec_T100/sw00090053089b_1.pha HISTORY P3 outtype = PHA HISTORY P4 timedel = 0 HISTORY P5 timebinalg = u HISTORY P6 energybins = CALDB:80 HISTORY P7 gtifile = NONE HISTORY P8 ecol = ENERGY HISTORY P9 weighted = YES HISTORY P10 outunits = RATE HISTORY P11 timepixr = -1.0 HISTORY P12 maskwt = NONE HISTORY P13 tstart = 250668939.2 HISTORY P14 tstop = 250668944.2 HISTORY P15 snrthresh = 6.0 HISTORY P16 detmask = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_HISTORY P16 reproc/GRB081211B/00090053089-results/auxil/sw00090053089b_qmap.fitsHISTORY P17 tcol = TIME HISTORY P18 countscol = DPH_COUNTS HISTORY P19 xcol = DETX HISTORY P20 ycol = DETY HISTORY P21 maskwtcol = MASK_WEIGHT HISTORY P22 ebinquant = 0.1 HISTORY P23 delzeroes = NO HISTORY P24 minfracexp = 0.1 HISTORY P25 min_dph_frac_overlap = .999 HISTORY P26 min_dph_time_overlap = 0 HISTORY P27 max_dph_time_nonoverlap = 0.5 HISTORY P28 buffersize = 16384 HISTORY P29 clobber = yes HISTORY P30 chatter = 2 HISTORY P31 history = YES HISTORY P32 mode = ql HISTORY END PARAMETER list for batbinevt_1.48 HISTORY HISTORY HISTORY START PARAMETER list for batupdatephakw_1.4 at 2016-01-10T18:15:28 HISTORY HISTORY P1 infile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reHISTORY P1 proc/GRB081211B/remake_spec_cflux/spec_T100/sw00090053089b_1.pha HISTORY P2 auxfile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_rHISTORY P2 eproc/GRB081211B/00090053089-results/auxil/sw00090053089b_all.evaux HISTORY P3 chatter = 1 HISTORY P4 clobber = no HISTORY P5 history = yes HISTORY P6 mode = ql HISTORY END PARAMETER list for batupdatephakw_1.4 HISTORY TTYPE4 = 'SYS_ERR ' / Fractional systematic error TFORM4 = 'D ' / format of field HISTORY HISTORY START PARAMETER list for batphasyserr_1.6 at 2016-01-10T18:15:28 HISTORY HISTORY P1 infile = /local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reHISTORY P1 proc/GRB081211B/remake_spec_cflux/spec_T100/sw00090053089b_1.pha HISTORY P2 syserrfile = CALDB HISTORY P3 chatter = 2 HISTORY P4 clobber = no HISTORY P5 history = yes HISTORY P6 mode = ql HISTORY END PARAMETER list for batphasyserr_1.6 HISTORY END ?FL?Bլ??d4zj?N?an?T*~?1Z ?Exts33?T%R?龊jF0ff?U ?l"?]U?Tʓ0?56h"_'?T3?-VCVW?`>'?T4{?͊vb9?R!?z@ ?I533?R/B?z@ ?Q%K?P΁~[?z@ Chp?MX ;?z@ ?]EQ?L9yc?z@ 49?J'fX?z@?ʬ-33?I,?z@\Z333?JxI?z@?6U?GQTU?z@P>o?F?St?z@?NȑYf?F9t?z@?A-Z?Faw?z@'Dff?EZK ?z@?6s?Fr<?z@:?F ?z@?-ݾvff?FA?z@?Lf Z͙?EK[?z@??肿33?D8/?z@P 3?BE3?z@?#ԙ333?C;qa:?z@?&PH?D ơv?z@?Dj#p?AQF¡?z@?P}?B) p ,?z@FMN?Ag ѬB?z@ 55e33?AeӠb?z@!?D?Ah9=*?z@"?I6tl?@F}?z@#?Id>??($ʚ?z@$?NNff?A?z@%2Q?>j]?z@&??rfff?>V}0?z@'?D`?:Q֭?z@(,\?9 4LY"?z@);3G<#33?8d8?z@*7uc6333?8j/?z@+? u`333?9Br?z@,?; a?:Y @s?z@-2qٙ?6lز?z@.?& 6ff?7Cw܏?z@/H?7[|?z@0?&@ϳ33?9?z@1?5~?z@2?xٙ?5"F?z@3?Gfff?5I?z@4=мNo333?8F,?z@6?4`s z?z@74fٙ?3̍?z@81]?4Y딻?z@9K ?3}԰?z@:8_BIs33?5͊·J?z@;> 33?5ňE?z@# ?3J$g?z@??3!?0Ϧ|?z@@:N^ ?45?z@A x?3?z@B/ŝ?4 ~J?z@C;+))333?2O?z@D?+?2:?z@E?;v33?15P%?z@F?VL?0;Uv /?z@G?* C?2(H&?z@H?3^y?0cEQ?z@I'R?0N0z?z@J6E?/ 2|f?z@K?)fff?/=CCff?CffC@CC3AC3CffBCffC"CC"C$3DC$3C'ffEC'ffC*FC*C,GC,C/HC/C233IC233C5JC5C73KC73C:LC:C=LMC=LC@NC@CBfOCBfEXTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 16 / width of table in bytes NAXIS2 = 1 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 2 / number of fields in each row TTYPE1 = 'START ' / GTI start time TFORM1 = 'D ' / data format of field: 8-byte DOUBLE TUNIT1 = 's ' / physical unit of field TTYPE2 = 'STOP ' / GTI stop time TFORM2 = 'D ' / data format of field: 8-byte DOUBLE TUNIT2 = 's ' / physical unit of field EXTNAME = 'STDGTI ' / name of this binary table extension HDUCLASS= 'OGIP ' / Conforms to OGIP/GSFC standards HDUCLAS1= 'GTI ' / Contains good time intervals HDUCLAS2= 'STANDARD' / Contains standard good time intervals HDUVERS = '1.0.0 ' / Version of GTI header TIMEZERO= 0. / Zero-point offset for TIME column MJDREF = 0.000000000000000E+00 / MJD Epoch of TIME = 0 TSTART = 250668939.2 / Start time of GTI TSTOP = 250668944.2 / Stop time of GTI GAINAPP = T / Gain correction has been applied TIMESYS = 'TT ' / time measured from TIMEREF = 'LOCAL ' / reference time TASSIGN = 'SATELLITE' / Time assigned by clock TIMEUNIT= 's ' / unit for time keywords TIERRELA= 1.0E-8 / [s/s] relative errors expressed as rate TIERABSO= 1.0 / [s] timing precision in seconds DATE-OBS= '2008-12-11T06:15:13' / Start date of observations DATE-END= '2008-12-11T11:13:09' / End date of observations CLOCKAPP= F / default EXPOSURE= 5. / [s] Total exposure, with known corrections DEADC = 1. / dead time correction TIMEPIXR= 0.0 / Bin time beginning=0 middle=0.5 end=1 TIMEDEL = 100.0E-6 / [s] time resolution of data TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'BAT ' / Instrument name DATAMODE= 'Event ' / Datamode OBS_ID = '00090053089' / Observation ID TARG_ID = 90053 / Target ID SEG_NUM = 89 / Segment number EQUINOX = 2.000E+03 / Equinox of celestial coord system RADECSYS= 'FK5 ' / celestial coord system OBS_MODE= 'POINTING' ORIGIN = 'NASA/GSFC' / origin of fits file CREATOR = 'batbinevt 1.48' / Program that created this FITS file TLM2FITS= 'V7.13' / Telemetry converter version number DATE = '2008-12-17T08:22:34' / file creation date (YYYY-MM-DDThh:mm:ss UT) LDPEBINS= 0 / LDP Energy Bin count LDPTYPE = 11 / LDP Type Code LDPGAIN = 415. / LDP Gain Index LDPOFFST= 1070. / LDP Offset Index LDPNA1 = 'e7f1prhz.evl' / LDPNAME of nn'th processed LDP LDPNA2 = 'e7f25gkz.evl' / LDPNAME of nn'th processed LDP LDPNA3 = 'e7f2b6dz.evl' / LDPNAME of nn'th processed LDP HISTORY GAINMETH= 'FIXEDDAC' / Cubic ground gain/offset correction using DAC-bOBJECT = 'NGC4395 ' / Object name MJD-OBS = 5.481140050908102E+04 / MJD of data start time USER = 'apsop ' / User name of creator NPIXSOU = 4.9478000000E+04 / Number of pixels in selected region PROCVER = '3.12.4 ' / Processing script version SOFTVER = 'Hea_19Sep2007_V6.3.2_Swift_Rel2.7.2(Bld21.2)_19Sep2007' / HEASOFT andCALDBVER= 'b20070924_u20071106_x20071101_m20071023' / CALDB index versions used SEQPNUM = 7 / Number of times the dataset processed RA_OBJ = 186.454 / [deg] R.A. Object DEC_OBJ = 33.5467 / [deg] Dec Object RA_PNT = 186.45394621105 / [deg] RA pointing DEC_PNT = 33.553253608225 / [deg] Dec pointing PA_PNT = 112.99471311011 / [deg] Position angle (roll) CATSRC = F ATTFLAG = '100 ' / Orgin of attitude information UTCFINIT= -3.32510000000000 / [s] UTCF at TSTART BCALFILE= 'sw00090053089bgocb.hk.gz' / BAT total linear gain/offset file name BRESFILE= 'swbquadres20030304v003.fits' / BAT Residual from linear gain file namBPULFILE= 'swbpulsecal20080601v001.fits' / BAT Ground Pulser DAC to keV file namBFLTFILE= 'swbpulseflt20040101v001.fits' / BAT Flight Pulser DAC to keV file namFILIN001= '/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB'FILIN002= '/local/data/bat1/alien/Swift_3rdBATcatalog/event/batevent_reproc/GRB'TRIGTIME= 250668905.325 / [s] MET Trigger Time BATCREAT= 'batmaskwtevt 1.22' / BAT Program that modified this FITS file MASKBATX= 0. / [cm] Center of mask tile plane in BAT_X MASKBATY= 0. / [cm] Center of mask tile plane in BAT_Y MASKBATZ= 100.3 / [cm] Top of mask tile plane in BAT_Z MASKOFFX= -0.145 / [cm] Offset of mask in BAT_X MASKOFFY= 0.114 / [cm] Offset of mask in BAT_Y MASKOFFZ= 0.05 / [cm] Offset of mask in BAT_Z MASKX0 = -124.25 / [cm] Position of mask corner in BAT_X MASKY0 = -63.25 / [cm] Position of mask corner in BAT_Y MASKPSI0= 0. / [deg] Mask Euler rotation about X-axis MASKPSI1= 0. / [deg] Mask Euler rotation about Y-axis MASKPSI2= 0. / [deg] Mask Euler rotation about Z-axis MASKCELX= 0.5 / [cm] Size of mask cell in BAT_X MASKCELY= 0.5 / [cm] Size of mask cell in BAT_Y MASKCELZ= 0.1 / [cm] Size of mask cell in BAT_Z DETBATX = 0. / [cm] Center of detector plane in BAT_X DETBATY = 0. / [cm] Center of detector plane in BAT_Y DETBATZ = 0.35 / [cm] Top of detector plane in BAT_Z DETOFFX = 0. / [cm] Offset of detector plane in BAT_X DETOFFY = 0. / [cm] Offset of detector plane in BAT_Y DETOFFZ = 0. / [cm] Offset of detector plane in BAT_Z DETCELX = 0.42 / [cm] Size of detector pitch cell in BAT_X DETCELY = 0.42 / [cm] Size of detector pitch cell in BAT_Y DETCELZ = 0.2 / [cm] Size of detector pitch cell in BAT_Z DETSIZEX= 0.4 / [cm] Size of detector in BAT_X DETSIZEY= 0.4 / [cm] Size of detector in BAT_Y DETSIZEZ= 0.2 / [cm] Size of detector in BAT_Z BAT_RA = 168.2646 / [deg] Right ascension of source BAT_DEC = 53.83 / [deg] Declination of source COORTYPE= 'sky ' / Type of coordinates specified for weighting FFAPP = T / Projection correction applied? NFAPP = F / Near-field correction applied? ~(COS+RSQ) PCODEAPP= T / Partial coding correction applied? NGPIXAPP= T / Normalized by number of detectors? MSKWTAPP= T / Correction for mask weight technique applied? BDISTAPP= F / BAT image corrected for distortions? APERTURE= 'swbaperflux20041120v001.fits' / BAT aperture file name BTELDEF = 'swb20070911v001.teldef' / BAT teldef file name END AfffA fff