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 = '01418729000' / Observation ID TARG_ID = '1418729 ' / 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 = 786298731.2 / Start time DATE-OBS= '2025-12-01T16:18:51.2' / Start Date TSTOP = 786299413.12 / Stop time DATE-END= '2025-12-01T16:30:13.1' / 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 = '2025-12-01T16:27:12' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -36.78484 / UTCF at TSTART CHECKSUM= '3WqS5ToP3ToP3ToP' / HDU checksum updated 2025-12-01T16:30:02 DATASUM = ' 0' / data unit checksum updated 2025-12-01T16:27:12 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 = '01418729000' / Observation ID TARG_ID = '1418729 ' / 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 = '2025-12-01T16:27:12' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 786299203.2 / Start time DATE-OBS= '2025-12-01T16:26:43.2' / Start Date TSTOP = 786299413.12 / Stop time DATE-END= '2025-12-01T16:30:13.1' / 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 = 1418729 / Trigger Number TRIGSEC = 786299227 / Trigger time in seconds TRIGSUBS= 6800 / [2*10**(-5) s] TRIGger SUBSeconds TRIGTIME= 786299227.136 / [s] MET TRIGger Time = TRIGSEC+TRIGSUBS*2e-5 DATETRIG= '2025-12-01T16:26:30.4' / UTC date of the trigger TZDELTA = 6 / Trigger delta time in 10e-3 seconds units TRIGSATF= 146 / Trigger table index. Highest signif. satisfied BRA_OBJ = 6.40853981469526 / [deg] BAT GRB Object RA location BDEC_OBJ= -44.237098764362 / [deg] BAT GRB Object DEC location1 BATTHETA= 30.3603134155273 / [deg] BAT GRB Object Theta on detector BATPHI = -164.574493408203 / [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 = -36.78484 / [s] Packet #1 UTC Correction time P1UTCCS = -37 / Packet #1 UTC Correction Seconds P1UTCCSS= 10758 / [2*10**(-5) s] Packet #1 UTC Corr SubSeconds PKT1TIME= 786299247.6791 / [s] ccsds PacKeT #1 Time= PKTSEC+PKTSUBS*2e-5 PKT1SEC = 786299247 / ccsds PacKeT #1 SEConds PKT1SUBS= 33955 / [2*10**(-5) s] ccsds PacKeT #1 SUBSeconds PKT1SEQ = 134 / Packet#1 CCSDS sequence number TIMEPIXR= 0. / Bin time beginning=0.0 middle=0.5 end=1. TELAPSE = 209.919999837875 / TSTOP - TSTART ONTIME = 209.919999837875 / Time on target LIVETIME= 209.919999837875 / Ontime multiplied by DEADC EXPOSURE= 209.919999837875 / Total exposure, with all known correction DEADC = 1. / dead time correction KEYMISS = T / Expect missing keywords CHECKSUM= '7XfO8XcO7XcO7XcO' / HDU checksum updated 2025-12-01T16:30:02 DATASUM = '209267440' / data unit checksum updated 2025-12-01T16:30:02 P2UTCC = -36.78484 / [s] Packet #2 UTC Correction time P2UTCCS = -37 / Packet #2 UTC Correction Seconds P2UTCCSS= 10758 / [2*10**(-5) s] Packet #2 UTC Corr SubSeconds PKT2TIME= 786299379.68792 / [s] ccsds PacKeT #2 Time=PKTSEC+PKTSUBS*2e-5 PKT2SEC = 786299379 / ccsds PacKeT #2 SEConds PKT2SUBS= 34396 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds PKT2SEQ = 135 / Packet#2 CCSDS sequence number P3UTCC = -36.78484 / [s] Packet #3 UTC Correction time P3UTCCS = -37 / Packet #3 UTC Correction Seconds P3UTCCSS= 10758 / [2*10**(-5) s] Packet #3 UTC Corr SubSeconds PKT3TIME= 786299431.98128 / [s] ccsds PacKeT #3 Time=PKTSEC+PKTSUBS*2e-5 PKT3SEC = 786299431 / ccsds PacKeT #3 SEConds PKT3SUBS= 49064 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds PKT3SEQ = 136 / Packet#3 CCSDS sequence number END An7-V?>DLDhDB`D)AMAAZAEb^B>OAnfff6Vt?vID8DD:hD+hAXAxAANE_ BAn3"`A?/DDD>D'XAAAAtHE^B`An/;dZ?8DD`DJD(A:A]JAAQEbhB>T#Anfff,1&x?0dDD0DOD/A̒AхA5lAkEeB?IAn333)xE?DXDlDKpD9AѤ~AAjAh8Eh0B@LAn&E?6DtD8DiHD9AlAUA2aAhiEtBEeAn#nO?DDDnD:@AAݤ@AÃAteE}BIkAnvȴ9X?zG{i-DDXDk(D9(BmBvBXB@o` E{BdBXB<$EB⺾An/v?zG{YDDDDBByBvBh-]BE?&fEBXkAnzlC?zG{fDDlDD6BzOBzBlB>sE;BoAn=pvȴ9?zG{DDxDLD1XBzOBVBxnBEB/AnbM?zG{tDPD,DDZBq]BByBQ*>EB9An{5?|h?zG{D DDDBBw|B>BBE?& EBAn = S?zG{xDDDD=BBZBrbMBBtQEVBGAn + I?zG{{DDŨD DN@BͅBBsYZBK3EBxAn(+ I?zG{DDD4DDUHB@BZAB#BN^E.BU7AnQ+?zG{D|D$D DZBBUBBQ*>{EBQAnzGhr ě?zG{DDxDDHBd9BWB{?4BHcIE!BAn -V?zG{D DDlDY0BBBzBPjQEBSAnͿtj~?bMiD D,DLDMB BBBg8B~ECEUSAn/+ I?bMqDLDDD\Bg8BTB؁BE{CL4AnhzG{?bMvDDbDDfxBBNBRBE݀CI)AnnO;?bMgDD>DjDI,BIBޟ:BEDB{ECDjAnVbM?bMiDzDިDDMBBB6BECOAnR1&x?bMcDD2D4DA\BγB߷IB߰BwE~CEAn/tj~?bMDDDDzB˹BΨBBECMAn?|zG{?bMgDDbD.DI,BBNB|BECFdAnO;bM?bMkDDDDPBBB؁BRETCJAn`Aؓtj~?bMxDDDDj`BγB+BPeB)ECKlAnp׿bM?bMjDDDDOBʅBTBի-BޅECJ8An%bM?bMuDDDDdB^BB˹BEDDOBγBޟ:B̓BޅEfCH@Anfff?vȴ9?bMwDDDD@DhlBBBŤqBrEZCIw0Anvȴ?1&x?bMqDDDD\BѡBTB/BECIAn+?Q?bM]DDBDD5BRBBʅBEHCKFsAnP@bM?bMqD(D,DD\BBBBѡBE݀CI)An@hr ě?bMtDDߢD4DbB̓BrB߰BIRECKAnQ@nO;?bMDDDD}BBB6B'ECPvAnȴ9@tj~?bMDDDD@D{BBBŤqBwDE݀CI)An@zG{?bMnD\DnDDVBB0B˹B[ENCJ}Anx@$/?bMkDnDDDPB0BΨBʅBRECMAn#@+ I?bMrDbD>D:D^BNBޟ:BBOBPEˀCJAn =p@O;dZ?bMxDDbD.Dj`BdBNB|B)ECFdAn@tj~?bMDDfDD4BBBB߰ECWAn+ @ ?bMtDVDDDbBjBڅB̓BIRECPvAn;dZ@ vȴ9?bM^D.DbDFD7B|BNBB}peECAmAnKƨ@ S?bMgDDDDI,BvB ZBγB{ECDjAn\(@ 1&x?bMzDDDDnHBի-BTBBrECMAnlC@ -V?bMjDD&DXDOBvBB'BޅECFdAn|@Q?bMnD DnD:DVB B0BBOB[{ECDjAnO@vȴ9X?bMrD\D8DbD^BB+mBNBPECPAn-@bM?bMkDvD8D4DPBB+mB߰BRpEXCC'An{@`A7L?bMND"DDDXBȴBBѡB ~ECEUSAnv@hr ě?bMYDDD(D-BPeBԅBBg\EvC@An@Q?bMtDD2D4DbBB߷IB߰BIRECGAn;d@nO;?bMqD2DDD\B߷IB^B؁BE0CMAn@l?bMfD(DDjDG8BBγBEDBREC>h;An@tj~?bMmD DDDTB B:BB!:ExCFiAnbN@+?bMrDhDDdD^BB BBPEHCKFsAn ě@zG{?bMZDDnD@D/BѡB0BŤqB;UqECCPAn1&@E?bMlDDzD4DRBBB߰Ba8}ECE-AnA7@$/?bMsDtDJDD`B١B݅B9B9ECHAnQ@tj?bMrDD,DD^B˹BBBPeBPE(CHAnbM@+ I?bMhDDbDFDK BPeBNBBX(rECCwAnr @ =p ?bMqDDDD\BBBRBExCFiAnn@O;dZ?bMMDDDDdB6BB1BOEIC=Ant@bM?bMoDDD DXB`2BB BE:CFBOAn @tj~?bMeDDDDEDBdB==B ZB{ECDjAn9X@+ I?bMWDDDD)BdBѡB9BGEUCVt?bMqDDDWD**BmB 8tAJAAEzBzAn?|@?\(\?bMDbDD\D,BB LApAEwBxAn\@@1&x?bMDހDDe?D0BBb.Af7AEv'BxAnE@@9XbN?bMVNDD&DND(uB$B CA<)A7MEo BtyAnȴ9@A7KƧ?bMDD@DaD.QBSB cAzAEy ByAnKƨ@A^5?|?bMaD@DDfxD-BWBb.A *AQ+EsBvAn@B=p =?bM\D;D8D_cD=5B~B AQA}Ew` Bx-AnQ@Bn?bMzoDDDVD)BD!AABAZxAHw8E\A\An-@\bM@bMb D@D DH"`D+A|A;:A_AOSk9LE_AAnv@]+ I@bMD DD@DC D*: A}AيA]$ANJ9E`A$RAn@^1&@bM y iDr@DTDBD"AWA5A\AI8E^FXAAn =@_"`A@bM4 f D@Df@DAD) A~ARA\DAMJ9E^hAAnS@`zG@bM \ |DDDAD#рA}AA[rAJ_V8E[)xAAn@`O;d@bM } D0DDC! 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