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 = '01442454000' / Observation ID TARG_ID = '1442454 ' / 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 = 790624368. / Start time DATE-OBS= '2026-01-20T17:52:48.0' / Start Date TSTOP = 790625049.92 / Stop time DATE-END= '2026-01-20T18:04:09.9' / 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 = '2026-01-20T18:01:19' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -37.0772 / UTCF at TSTART CHECKSUM= '8S0W8S0V8S0V8S0V' / HDU checksum updated 2026-01-20T18:03:59 DATASUM = ' 0' / data unit checksum updated 2026-01-20T18:01:19 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 = 212 / 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 = '01442454000' / Observation ID TARG_ID = '1442454 ' / 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 = '2026-01-20T18:01:19' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 790624840. / Start time DATE-OBS= '2026-01-20T18:00:40.0' / Start Date TSTOP = 790625049.92 / Stop time DATE-END= '2026-01-20T18:04:09.9' / 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 = 1442454 / Trigger Number TRIGSEC = 790624863 / Trigger time in seconds TRIGSUBS= 11600 / [2*10**(-5) s] TRIGger SUBSeconds TRIGTIME= 790624863.232 / [s] MET TRIGger Time = TRIGSEC+TRIGSUBS*2e-5 DATETRIG= '2026-01-20T18:00:26.2' / UTC date of the trigger TZDELTA = 77 / Trigger delta time in 10e-3 seconds units TRIGSATF= 271 / Trigger table index. Highest signif. satisfied BRA_OBJ = 284.66555499343 / [deg] BAT GRB Object RA location BDEC_OBJ= 61.9118595655486 / [deg] BAT GRB Object DEC location1 BATTHETA= 55.7864189147949 / [deg] BAT GRB Object Theta on detector BATPHI = -177.928680419922 / [deg] BAT GRB Object PHI on detector APID = 387 / Application Process Identifier PKT1REV = 1 / 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 = T / 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 P1UTCC = -37.0772 / [s] Packet #1 UTC Correction time P1UTCCS = -38 / Packet #1 UTC Correction Seconds P1UTCCSS= 46140 / [2*10**(-5) s] Packet #1 UTC Corr SubSeconds PKT1TIME= 790624893.87914 / [s] ccsds PacKeT #1 Time= PKTSEC+PKTSUBS*2e-5 PKT1SEC = 790624893 / ccsds PacKeT #1 SEConds PKT1SUBS= 43957 / [2*10**(-5) s] ccsds PacKeT #1 SUBSeconds PKT1SEQ = 10 / Packet#1 CCSDS sequence number TIMEPIXR= 0. / Bin time beginning=0.0 middle=0.5 end=1. TELAPSE = 209.919999957085 / TSTOP - TSTART ONTIME = 209.919999957085 / Time on target LIVETIME= 209.919999957085 / Ontime multiplied by DEADC EXPOSURE= 209.919999957085 / Total exposure, with all known correction DEADC = 1. / dead time correction KEYMISS = T / Expect missing keywords CHECKSUM= '7MGAAKG50KGA7KG5' / HDU checksum updated 2026-01-20T18:03:59 DATASUM = '4048998499' / data unit checksum updated 2026-01-20T18:03:59 P2UTCC = -37.0772 / [s] Packet #2 UTC Correction time P2UTCCS = -38 / Packet #2 UTC Correction Seconds P2UTCCSS= 46140 / [2*10**(-5) s] Packet #2 UTC Corr SubSeconds PKT2TIME= 790625016.0894 / [s] ccsds PacKeT #2 Time=PKTSEC+PKTSUBS*2e-5 PKT2SEC = 790625016 / ccsds PacKeT #2 SEConds PKT2SUBS= 4470 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds PKT2SEQ = 11 / Packet#2 CCSDS sequence number P3UTCC = -37.0772 / [s] Packet #3 UTC Correction time P3UTCCS = -38 / Packet #3 UTC Correction Seconds P3UTCCSS= 46140 / [2*10**(-5) s] Packet #3 UTC Corr SubSeconds PKT3TIME= 790625060.3487 / [s] ccsds PacKeT #3 Time=PKTSEC+PKTSUBS*2e-5 PKT3SEC = 790625060 / ccsds PacKeT #3 SEConds PKT3SUBS= 17435 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds PKT3SEQ = 12 / Packet#3 CCSDS sequence number END AǏ$7;dZ?DDD9DA/:AMAhAEkBB:AǏ$5n?TgDD D>PDA1Al>AAJEhBAAǏ%41&x?DlDDEDXAA.AAEnBC-AǏ&fff2nO;?kD\D,D;XD0A"Aп A"AuEkBBG AǏ'3330E?hD<D DGD PAfA| Aw7AOgEjBAAǏ(.vȴ9X?QbDTDPD?D0A洘A$A$AԾ EfxB@UAǏ(+C$?d DDD< DA绌A0A~WAEpPBD3AǏ)(bM?[DDDDDA?#AР`A{~AElJBBp4AǏ*fff$/w?rDxDD1DA6AР`AA{EkxBBAǏ+333!lC?QPDTD\D?DA洘AΔLA6A*EfB@9MAǏ,hr ?zG{RD0DD3D/BMBeIB=gB;7EnHBMAǏ,(S?zG{H D|D DPDBBbbwBL@nB.EoBAǏ,Q^5?|?zG{bDDHD D@BsBk/B3hB"EaBԗAǏ,zG+ I?zG{LDTDD+D8B~BcB8B,EaBhwAǏ, +?zG{9D`DtD2 D8B||B]%B+AǏ/E?ȓtj~?bMDDFDDB6BBBErCGAǏ/Ƨ?zG{?bMsDDLDD`BBg8BB9pEXCC'AǏ/ =?ܬ1&x?bMDDRD.DBγBB|B1}ECE-AǏ/l?nO;?bMD,D.DDBBB|BԅBECM]AǏ/?+ I?bMDD4D.D^B6B߰B|B‡E`CHAǏ01'?ꟾvȴ9?bMDDDjDBB˹BEDB^ECG.2AǏ0t?Q?bMDVDXD4DBjB'B߰B2@ECG.2AǏ0(?hr ě?bMD@DDRDBŤqB6BB/E:CFBOAǏ09X?tj~?bMDD4DDB^B߰BB2@ECG.2AǏ0I^?$/?bMDDD@DB==B̓BŤqBECHgAǏ0Z?O;dZ?bMwDDD@D"DhlBBŤqBȴBrECFAǏ0j~??bMDD@D|DB؁BŤqB]B ExCFiAǏ0zG?S?bMqDD^DD\B^B‡BYBIEҀCE#C;,AǏ1\@&x?bM}TDDDt$D$Bի-B/B\B4ESC5AǏ1@lC?bMagDDD=tDI,BIB7BnBEzC0AǏ1S@-V?bMhQDpDDK D4BPB7BX(BEfC) AǏ1E@ ě?bM`PDDD;D@BB^BBEsC.AǏ2@333333?bM{zTDDp<DnHD$BPeBJ%BrB4EqC-1AǏ2z@E?bMjZDD}DOD/BԅB'BޅB;UEyC0AǏ2$/@9XbM?bMbZDDD?hD/B`2B1BB;UE}C2'AǏ25?}@j~#?bMy[DDDlTD1BѡB9BB EC5AǏ2E@?|hr?bM^XDDvD7D+BBB}pBSEwC/RAǏ2V@\(?bMl=DD|DRCHB^B]Ba8BtEuC/ AǏ2fff@E?bMmTJD|DTD$DB]B!:B4BiMEKC(AǏ2vȴ@ȴ9Xb?bM^cDDD7DA\BBB}pBwEwC/RAǏ2+@KƧ?bMnGDDDVD B؁BB[BEz}C0AǏ2P@+?bMbaDDD?hD=tBѡBqlBBn E~C2~AǏ2@QR?bMuJDDDdDB̓BBBiMEsC.AǏ2Q@E?bMfHDDDG8D BRBqlBB Ep<C-J%AǏ2ȴ9@XbM?bMUFDDD&DBB\B.BgEkZC+AǏ2@"`A?bM]KDDD5D|BB^BBQEpC-w5AǏ2x@^5?|?bMiDDPDDMDBB9BB E~C2~AǏ2#@Gz?bMuODDDdDLB̓B BBEzC0AǏ3 =p@dZ1?bMiBDD{DMDBPeBwDBB}OEcC(AǏ3@lC?bM{oKDDp<DXD|BBJ%BBQEmNC,:AǏ3+ @j~"?bMocDJDLDXDA\B݅Bg8BBw9EC:[qAǏ3;dZ@hr ?bMMFDPDDdDBB1BBgEnC,°AǏ3Kƨ@p =p?bM{\9hETBKAǏ7333@.Vt?bMQDD~DDJDBkB|mB]B87NEeBEAǏ7S@.+ ?bMEDD#DF>DB׃BZ&B^:B5EgB$AǏ7tj@/\(\?bMZDDt$DLD.BR'Bw BaTBG|ElTBfAǏ7@/;dZ?bMlDDD,D#B BBOBIdEoBBAǏ7E@01&x?bM@D@DcD)D"BBnZBNBIPe}EZBv6AǏ7 =@0r ě?bM}*D DD.DjB~qBZBQ ZBAEDEvӀBhtAǏ7@09XbN?bMJ*D"DDMD3BBZBbmBSEyBxAǏ8t@0\(?bMEDD5D[D.B׃BBj`BQ ZEvBHAǏ89X@17KƧ?bMI&DDDG8DBBB_+mB42@Ej`BAǏ8Z@1xE?bMDD4DDUDdBBBg:BAElB1AǏ8zG@1^5?|?bM?DDzDYD B$Bz|BiTB<&aEfxB *AǏ8@1lC?bMRD D}DCPDvBB{B\B@EgBAǏ8j@2=p =?bMU DDD@bDRBD_B B[NBCEoBAǏ8/@2~"?bMJ D"DeDK DBB~[HBaXB87NEeB AǏ8@2n?bM_DcDDI,DB]B1B`BB3EmBqAǏ9R@3 I^5?bM~DD)D>nD&BBBZ0BLR E|2BAǏ9?|@3C$?bMbDD|DUDLBB{uBg:BDg8EqBЈAǏ9`A@3Q?bM}D D#DPD|B~qBZ&Bd B?]E{BaAǏ9%@3Ƨ-?bM`DD#D2D)BSBZ&BS^BNEs*BAǏ9@41&x?bMS DDDCPD&BBB\BLREnBQAǏ9\@4I^5?}?bMQDDnHDF>D (BkBtB^:BHEgrB8AǏ9S@4C%?bM^DD|D,D0B(B{uBOBR6ElB?AǏ:@4?bMZDDD@bD+BR'B_ZB[NBOIEqtBAǏ:$/@5Vt?bMUDDkDOD% BD_B}eBcBK EpzB1kAǏ:E@5O;dZ?bMIDD;D4DpBB~BF߰B@PEaB8AǏ:fff@5hr ?bMfDDD1DXBB1BRBC'EnBQAǏ:+@5l?bMS DDeD/CBB~[HBQB2'E_%B0AǏ:@6zG?bMMDDD?hDFBBBZBEEmBAǏ:ȴ9@6Vt?bMP+zDDD1CHB4BDDSDA\D #B EB(AA,EeBo AǏ;O@7;dZ?bMR:cDBDD?hD+B)IB}AAEjP`BrAǏ<bN@8`A7K?bM1`D;@DDA\DBgtBgAA.23Em|BsAǏ@v@>tj?bM]$VD@DeD: DBA[HAרA EgBpVAǏ?"@? 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