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 = '01290305000' / Observation ID TARG_ID = '1290305 ' / 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 = 761801712.002 / Start time DATE-OBS= '2025-02-21T03:35:12.0' / Start Date TSTOP = 761801897.92 / Stop time DATE-END= '2025-02-21T03:38:17.9' / 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 = '2025-02-21T03:38:06' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -35.11596 / UTCF at TSTART CHECKSUM= '9ZhOAWeO4WeO9WeO' / HDU checksum updated 2025-02-21T03:38:44 DATASUM = ' 0' / data unit checksum updated 2025-02-21T03:38:06 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 = '01290305000' / Observation ID TARG_ID = '1290305 ' / 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 = '2025-02-21T03:38:06' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 761801720. / Start time DATE-OBS= '2025-02-21T03:35:20.0' / Start Date TSTOP = 761801897.92 / Stop time DATE-END= '2025-02-21T03:38:17.9' / 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 = 1290305 / Trigger Number TRIGSEC = 761801712 / Trigger time in seconds TRIGSUBS= 9600 / [2*10**(-5) s] TRIGger SUBSeconds TRIGTIME= 761801712.192 / [s] MET TRIGger Time = TRIGSEC+TRIGSUBS*2e-5 DATETRIG= '2025-02-21T03:34:37.1' / UTC date of the trigger TZDELTA = -19 / Trigger delta time in 10e-3 seconds units TRIGSATF= 264 / Trigger table index. Highest signif. satisfied BRA_OBJ = 59.4766170518887 / [deg] BAT GRB Object RA location BDEC_OBJ= -15.1387040573162 / [deg] BAT GRB Object DEC location1 BATTHETA= 40.245719909668 / [deg] BAT GRB Object Theta on detector BATPHI = -59.5882225036621 / [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 = -35.11596 / [s] Packet #2 UTC Correction time P2UTCCS = -36 / Packet #2 UTC Correction Seconds P2UTCCSS= 44202 / [2*10**(-5) s] Packet #2 UTC Corr SubSeconds PKT2TIME= 761801911.6898 / [s] ccsds PacKeT #2 Time=PKTSEC+PKTSUBS*2e-5 PKT2SEC = 761801911 / ccsds PacKeT #2 SEConds PKT2SUBS= 34490 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds PKT2SEQ = 209 / 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= '5hrIAfoI5foIAfoI' / HDU checksum updated 2025-02-21T03:38:44 DATASUM = '2821738777' / data unit checksum updated 2025-02-21T03:38:44 P3UTCC = -35.11596 / [s] Packet #3 UTC Correction time P3UTCCS = -36 / Packet #3 UTC Correction Seconds P3UTCCSS= 44202 / [2*10**(-5) s] Packet #3 UTC Corr SubSeconds PKT3TIME= 761801955.98076 / [s] ccsds PacKeT #3 Time=PKTSEC+PKTSUBS*2e-5 PKT3SEC = 761801955 / ccsds PacKeT #3 SEConds PKT3SUBS= 49038 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds PKT3SEQ = 210 / Packet#3 CCSDS sequence number END Aƴ@;dZ?bM*:DDRDWD=tBZBpBhHFBYEzB]Aƴ ě@ ěT?bM#DDD\DA\BBErBj/B[EsBAƴA7@ =p?bMV%DDD^D-Bz|B|BkBPvE~&BAƴbM@!&x?bM/&DDDj`D;BBBrBXE{8BAƴn@!lC?bMSKDDDODAƴ&y@$9XbM?bM1DDDs*DQBBpBvBeEBAƴG@$j~#?bM)*DDDZD>nB`BZBiڅBZ0EwBƼAƴhr@%?|hr?bM3D5DDXD0BBBhΨBR6EqBNAƴ7K@%\(?bM5'DD DUD;BTB/!Bg:BXEẁB!Aƴ@&E?bME9DDD~DNB׃B7B|mBb[VEC$Aƴ@&ȴ9Xb?bM$<DDLD|D2BBB{uBS^E,B'hAƴ@'KƧ?bM-(DDD9DK BBiMBW`2BaXErBo>Aƴ I@'+?bM((DDDhlD?hBiMBiMBq BZEz}B>xAƴ-V@(QR?bM70DDpDTD?hBbB71BfKBZE{8BAƴM@(E?bM.?DvDDLDBVBKB$BaTB\jE{8BAƴn@)XbM?bM''D D DMD@bB/!B/!BbmB[NEshBAƴ\)@)"`A?bM1)DDDJ&D>nBpB`B`BZ0EuBAƴ @*^5?|?bM$0DDpDgrD9BB71Bp8BW`2EyBAƴ`@*Gz?bM*;DDDoBDYBZB{BtBiT9E@CnAƴ@+dZ1?bMDs*DDifD*BvB_ZBqBNEcȀBAƴn@+lC?bMA7DDDgrDPBBbBp8Bd :EC}Aƴ333@,j~"?bMM,DD|D\D1BBQBj/BRE~&BAƴS@,hr ?bMEIDDDVDBVB׃BBgB\j1E@B[Aƴtj@-p =p?bM04DpDdDe~D`B71BBoBl5Ex@C1Aƴ@-E?bMEDDD4D]DPB׃BBkjBd AE@CAƴE@.vȴ9X?bM=6DD^DkZD_BBBrBlrIE@C`Aƴ =@."`?bMDD/DMD/BBm5BbmBQEgBAƴ@/|hr?bM'.D DvDVDDJB/!BKBgB]ExBD9Aƴt@0?bM9DADDcDJ&BB7BnZB`E{wB:Aƴ9X@0A7Kƨ?bM$DD/DYD.BBm5BiTBQ ZEnB2AƴZ@0nP?bM6BD^D:D_DnB BBq BZ06EC@Aƴ@1n?bM*$DDDI,D5BZBB`BBUEoBAƴR@2 I^5??bMDD)DMD(BBBbmBMEhlB Aƴ?|@2M?bMDD#DlTDG8BBZ&BsfB_+mExǀBcAƴ`A@2\(?bMJ?D"DDfxDBVBB$Bp *B\jE}B{Aƴ"@>zG?bMD@D@D`]D8SB *BAA֪$E|2B{AƴT@?vȴ?bM0D0@D@Dj!DG8BBAsA+mME~ B|VAƴ(@@bM?bMD@DD]DA\BEBmAjA E{BzAƴ1@@tj~?bM!D7D*@D`DCBB=AA EzBz]Aƴ /@A+ J?bMkDDDUD7YBBAAEsBvGAƴ -@A?bMpD@DҀDVDDCBA֪ExJBy$Aƴ ;dZ@C"`A@bM^ D~`D@D\7DEРAA%AjA^a?EyP8A Aƴ G@E/v@bMk< DDVD^iD<@AAAk͎AY#?Ex^A.AƴS@G;dZ@bMD DD@D^DD*AZA &AlA]t'@fE{pAAƴ`A@IGzG@bM$ D@DKPD[ D;AsAAjCAX>Eu)AAƴlC@KS@bM DZD^DYIDC@`A?AAiA\?EyAAƴx@M`A7K@bM EDDl`D\ D? 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