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 = '01340514000' / Observation ID TARG_ID = '1340514 ' / Target ID SEG_NUM = '0 ' / Segment number TIMESYS = 'TT ' / Time system MJDREFI = 51910. / Reference MJD Integer part MJDREFF = 0.00074287037 / Reference MJD fractional TIMEUNIT= 's ' / Time unit for the time header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error TSTART = 776256404.794 / Start time DATE-OBS= '2025-08-07T10:46:44.8' / Start Date TSTOP = 776256590.72 / Stop time DATE-END= '2025-08-07T10:49:50.7' / Stop Date CLOCKAPP= F / If clock correction are applied (F/T) ORIGIN = 'GSFC ' / Source of FITS file CREATOR = 'TDRSS2FITS V3.21' / Program that created this FITS file TLM2FITS= 'V3.21 ' / Telemetry converter version number DATE = '2025-08-07T10:48:58' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -36.10302 / UTCF at TSTART CHECKSUM= '6ReN8OZM6OdM6OZM' / HDU checksum updated 2025-08-07T10:49:37 DATASUM = ' 0' / data unit checksum updated 2025-08-07T10:48:59 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 84 / width of table in bytes NAXIS2 = 107 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 9 / number of fields in each row TTYPE1 = 'TIME ' / label for field 1 TFORM1 = '1D ' / data format of field: 8-byte DOUBLE TUNIT1 = 's ' / physical unit of field TTYPE2 = 'RELTIME ' / label for field 2 TFORM2 = '1D ' / data format of field: 8-byte DOUBLE TUNIT2 = 's ' / physical unit of field TTYPE3 = 'TIMEDEL ' / label for field 3 TFORM3 = '1D ' / data format of field: 8-byte DOUBLE TUNIT3 = 's ' / physical unit of field TTYPE4 = 'RAW_COUNTS' / label for field 4 TFORM4 = '4J ' / data format of field: 4-byte INTEGER TUNIT4 = 'count ' / physical unit of field TTYPE5 = 'RATE ' / label for field 5 TFORM5 = '4E ' / data format of field: 4-byte REAL TUNIT5 = 'count/s ' / physical unit of field TTYPE6 = 'ERROR ' / label for field 6 TFORM6 = '4E ' / data format of field: 4-byte REAL TUNIT6 = 'count/s ' / physical unit of field TTYPE7 = 'TOT_COUNTS' / label for field 7 TFORM7 = '1J ' / data format of field: 4-byte INTEGER TUNIT7 = 'count ' / physical unit of field TTYPE8 = 'TOT_RATE' / label for field 8 TFORM8 = '1E ' / data format of field: 4-byte REAL TUNIT8 = 'count/s ' / physical unit of field TTYPE9 = 'TOT_RATE_ERR' / label for field 9 TFORM9 = '1E ' / data format of field: 4-byte REAL TUNIT9 = 'count/s ' / physical unit of field EXTNAME = 'TDRSS_LC' / name of this binary table extension TNULL4 = -1 / data null value TNULL7 = -1 / data null value TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'BAT ' / Instrument name OBS_ID = '01340514000' / Observation ID TARG_ID = '1340514 ' / Target ID SEG_NUM = '0 ' / Segment number CREATOR = 'TDRSS2FITS V3.21' / Program that created this FITS file ORIGIN = 'GSFC ' / Source of FITS file TLM2FITS= 'V3.21 ' / Telemetry converter version number EQUINOX = 2000 / Equinox RADECSYS= 'FK5 ' / Coordinates system TIMESYS = 'TT ' / Time system MJDREFI = 51910. / Reference MJD Integer part MJDREFF = 0.00074287037 / Reference MJD fractional TIMEUNIT= 's ' / Time unit for the time header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error CLOCKAPP= F / If clock correction are applied (F/T) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock DATE = '2025-08-07T10:48:58' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 776256412.8 / Start time DATE-OBS= '2025-08-07T10:46:52.8' / Start Date TSTOP = 776256590.72 / Stop time DATE-END= '2025-08-07T10:49:50.7' / Stop Date UTCFINIT= 0. / UTCF at TSTART MESGNAME= 'BAT_LIGHTCURVE' / Name of the message DATAMISS= T / Expect missing data HDUCLASS= 'OGIP ' / Format conforms to OGIP standards HDUCLAS1= 'LIGHTCURVE' / Time ordered data HDUCLAS2= 'TOTAL ' / Source + background HDUCLAS3= 'RATE ' / Data provided as rate DATAMODE= 'Rates_Arr_TDRSS' / Instrument operating mode TRIGGER = 1340514 / Trigger Number TRIGSEC = 776256404 / Trigger time in seconds TRIGSUBS= 27200 / [2*10**(-5) s] TRIGger SUBSeconds TRIGTIME= 776256404.544 / [s] MET TRIGger Time = TRIGSEC+TRIGSUBS*2e-5 DATETRIG= '2025-08-07T10:46:08.4' / UTC date of the trigger TZDELTA = 25 / Trigger delta time in 10e-3 seconds units TRIGSATF= 155 / Trigger table index. Highest signif. satisfied BRA_OBJ = 51.4200250231075 / [deg] BAT GRB Object RA location BDEC_OBJ= -47.8774784688358 / [deg] BAT GRB Object DEC location1 BATTHETA= 34.6546363830566 / [deg] BAT GRB Object Theta on detector BATPHI = -174.948593139648 / [deg] BAT GRB Object PHI on detector APID = 387 / Application Process Identifier PKT1REV = 0 / No.of revisions for PKT #1 PKT2REV = 1 / No.of revisions for PKT #2 PKT3REV = 1 / No.of revisions for PKT #3 PKT4REV = 0 / No.of revisions for PKT #4 PKT5REV = 0 / No.of revisions for PKT #5 PKT6REV = 0 / No.of revisions for PKT #6 PKT7REV = 0 / No.of revisions for PKT #7 PKT8REV = 0 / No.of revisions for PKT #8 PKT9REV = 0 / No.of revisions for PKT #9 PKT10REV= 0 / No.of revisions for PKT #10 PKT11REV= 0 / No.of revisions for PKT #11 PKT12REV= 0 / No.of revisions for PKT #12 PKT13REV= 0 / No.of revisions for PKT #13 PACKET1 = F / Data from packet #1 present PACKET2 = T / Data from packet #2 present PACKET3 = T / Data from packet #3 present PACKET4 = F / Data from packet #4 present PACKET5 = F / Data from packet #5 present PACKET6 = F / Data from packet #6 present PACKET7 = F / Data from packet #7 present PACKET8 = F / Data from packet #8 present PACKET9 = F / Data from packet #9 present PACKET10= F / Data from packet #10 present PACKET11= F / Data from packet #11 present PACKET12= F / Data from packet #12 present PACKET13= F / Data from packet #13 present P2UTCC = -36.10302 / [s] Packet #2 UTC Correction time P2UTCCS = -37 / Packet #2 UTC Correction Seconds P2UTCCSS= 44849 / [2*10**(-5) s] Packet #2 UTC Corr SubSeconds PKT2TIME= 776256565.69254 / [s] ccsds PacKeT #2 Time=PKTSEC+PKTSUBS*2e-5 PKT2SEC = 776256565 / ccsds PacKeT #2 SEConds PKT2SUBS= 34627 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds PKT2SEQ = 225 / Packet#2 CCSDS sequence number TIMEPIXR= 0. / Bin time beginning=0.0 middle=0.5 end=1. TELAPSE = 177.919999957085 / TSTOP - TSTART ONTIME = 177.919999957085 / Time on target LIVETIME= 177.919999957085 / Ontime multiplied by DEADC EXPOSURE= 177.919999957085 / Total exposure, with all known correction DEADC = 1. / dead time correction KEYMISS = T / Expect missing keywords CHECKSUM= 'NDKFPBK9NBKCNBK9' / HDU checksum updated 2025-08-07T10:49:37 DATASUM = '893865879' / data unit checksum updated 2025-08-07T10:49:37 P3UTCC = -36.10302 / [s] Packet #3 UTC Correction time P3UTCCS = -37 / Packet #3 UTC Correction Seconds P3UTCCSS= 44849 / [2*10**(-5) s] Packet #3 UTC Corr SubSeconds PKT3TIME= 776256609.97992 / [s] ccsds PacKeT #3 Time=PKTSEC+PKTSUBS*2e-5 PKT3SEC = 776256609 / ccsds PacKeT #3 SEConds PKT3SUBS= 48996 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds PKT3SEQ = 226 / Packet#3 CCSDS sequence number END A"]fff@ nP?bM"DED=DB99BXB=B ECA"]·+@!$/?bMDE&DDAB`BBoBE΋C A"]Χ@!7KƧ?bMDDDyD)BmBBСB}E@C3^A"]ȴ9@" I^5??bMDCDD͑DzB,BBLBzYE]@CwJA"]x@"\(?bM DDDD_BIRBB0BPEϤ@C!.A"] =p@#nO?bM]+DEDDBUB)B1B<)E@C'=A"]+ @#$/?bMc1D0E+DBDBBBBpnE-C*[A"]Kƨ@$tj?bMD[EDܴDBBBBQEC ޅA"]lC@$S?bMpDDDDPB?B nBާBd ECA"]ύO@%Q?bM[DDυDoD_B BBBlrxEC(A"]Ϯ{@%n?bMJD̗D D"DOBBX(BBcaE@CA"]@&$/?bMo@D3DʣD@DzB}B'BBzNEŀC A"]@&-?bMXDD˝D#DWByB(BZ&BhHFE@C 'A"]bN@'+ I^?bMT"DbDDDkZBB.B BrEk@C A"]1&@'zG?bMoD3D\DDLB}BwBBBaTEC WA"]Q@(1&x?bMNN)DDDDbBUBUB`Bm/E@C%A"]r @(9XbN?bMboDD3DDDJBB}BBB]E|CQA"]Гt@)7KƧ?bMADDDDbBBBBm/ECA"]д9X@)^5?|?bMct DWDD_DEDB2BBPB^ECBBgBB^:E6@CTA"] I@1xE?bMi{%DEDDDSBpBB|Bf+EC WA"]"@1^5?|?bMQDDDDDDȯDKDnHBjBbEBBtEWC2A"]I^@41&x?bMrD DDDx BX(BBBFBy E@CVA"]j~@4I^5?}?bM DDD&DyB\BBByiEQ@C=BA"]ԋC@4C%?bM-DEDwDAB`BaBK9BEܴC&A"]Ԭ1@4?bMz]EE[EsEBĶBSBGB) BF?@CZA"]@5Vt?bMs EE=E-DbBßBqBQ+B F# CCA"]h@5O;dZ?bMA&DE ހD<DBBBBJ%BPEC)A"]V@5hr ?bMt&DERDDBn\BB#BE팀C,Q}A"]/@5l?bM^DE@EDGBDBŤqBR"B?EC.A"]O;@6zG?bMJEE)oE!`DBBBB99 *F0@C=3A"]p@6Vt?bM EECEEc@DBBB]B^$EB#!:)F"(BɳA"]E@7\(\?bMy YEbE!E cD%B5BI pB9TB[ kECBlA"]vȴ@8bM?bMNDs@EDDzB+]B4B A|sE΢pB A"]#@9hr ě?bM#6uDDz@D׀DXBB#BAiEGBwA"]|@:nO;?bM l E%gEpEE%BKYBuqB3BK)5FQBA"]@;tj~?bM  E4L@E0E3PE,. 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