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 = '01348587000' / Observation ID TARG_ID = '1348587 ' / 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 = 779246414.4 / Start time DATE-OBS= '2025-09-11T01:20:14.4' / Start Date TSTOP = 779247006.4 / Stop time DATE-END= '2025-09-11T01:30:06.4' / 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 = '2025-09-11T01:28:50' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -36.3064 / UTCF at TSTART CHECKSUM= '7Tlc9SiZ7Sib7SiZ' / HDU checksum updated 2025-09-11T01:31:12 DATASUM = ' 0' / data unit checksum updated 2025-09-11T01:28:50 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 = 192 / 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 = '01348587000' / Observation ID TARG_ID = '1348587 ' / 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 = '2025-09-11T01:28:50' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 779246878.4 / Start time DATE-OBS= '2025-09-11T01:27:58.4' / Start Date TSTOP = 779247006.4 / Stop time DATE-END= '2025-09-11T01:30:06.4' / 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 = 1348587 / Trigger Number TRIGSEC = 779246902 / Trigger time in seconds TRIGSUBS= 23200 / [2*10**(-5) s] TRIGger SUBSeconds TRIGTIME= 779246902.464 / [s] MET TRIGger Time = TRIGSEC+TRIGSUBS*2e-5 DATETRIG= '2025-09-11T01:27:46.2' / UTC date of the trigger TZDELTA = -6 / Trigger delta time in 10e-3 seconds units TRIGSATF= 301 / Trigger table index. Highest signif. satisfied BRA_OBJ = 263.762248030132 / [deg] BAT GRB Object RA location BDEC_OBJ= -16.8437337609845 / [deg] BAT GRB Object DEC location1 BATTHETA= 50.0185165405273 / [deg] BAT GRB Object Theta on detector BATPHI = -4.69721126556396 / [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 = 0 / 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 = F / 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 = -36.3064 / [s] Packet #1 UTC Correction time P1UTCCS = -37 / Packet #1 UTC Correction Seconds P1UTCCSS= 34680 / [2*10**(-5) s] Packet #1 UTC Corr SubSeconds PKT1TIME= 779246944.5765 / [s] ccsds PacKeT #1 Time= PKTSEC+PKTSUBS*2e-5 PKT1SEC = 779246944 / ccsds PacKeT #1 SEConds PKT1SUBS= 28825 / [2*10**(-5) s] ccsds PacKeT #1 SUBSeconds PKT1SEQ = 62 / Packet#1 CCSDS sequence number TIMEPIXR= 0. / Bin time beginning=0.0 middle=0.5 end=1. TELAPSE = 128. / TSTOP - TSTART ONTIME = 128. / Time on target LIVETIME= 128. / Ontime multiplied by DEADC EXPOSURE= 128. / Total exposure, with all known correction DEADC = 1. / dead time correction KEYMISS = T / Expect missing keywords CHECKSUM= 'R3JRS1IPR1IPR1IP' / HDU checksum updated 2025-09-11T01:31:12 DATASUM = '1140560573' / data unit checksum updated 2025-09-11T01:31:12 P2UTCC = -36.3064 / [s] Packet #2 UTC Correction time P2UTCCS = -37 / Packet #2 UTC Correction Seconds P2UTCCSS= 34680 / [2*10**(-5) s] Packet #2 UTC Corr SubSeconds PKT2TIME= 779247098.6886 / [s] ccsds PacKeT #2 Time=PKTSEC+PKTSUBS*2e-5 PKT2SEC = 779247098 / ccsds PacKeT #2 SEConds PKT2SUBS= 34430 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds PKT2SEQ = 63 / Packet#2 CCSDS sequence number END A9.3338bM? Gv[DD8DnDV8A|A賗AÃA"EUBW0A9.6vȴ9X? &aDDDpxDW(A2A]A&A-ERBV'A9.4/w?MVD$DDpDUpAm(A}AWoAEBUA9.3C$?EDDDlDRAFANA[AEBUA9.fff1lC?:DDDyD^AA줨AǟAaEBX+A9.3330bM?KmDDD{DYA+AVAȯAXEBWFA9.,hr ?}DD@DoD[AA(AÓyAjEFBSA9.)^5?|? HHDDD{@DS@AAaAAKEwBX}A9.&+ I?VDXDxDoDUpA8A6AAEBV\ A9.fff#S? ,DpDDsD\AGA AŌ'AgEBXMA9.333 ěT?zG{4D D8DpDBBBB[_BE?&E6BA9.\("`?zG{=DlDDwDK BzBͅB^aBIsEzBZ%A9.-V?zG{HDDhD DSBBBbbwBMƦE]B\A9.{j~"?zG{9+DdDpDtDiBodBB]%BX%,EBvA9. ="`A?zG{'/D,DDfxDlBB}jBVBYEBA9."`A?zG{DDtD[DVB~sB=ABQBNmpEB/:A9.(tj~?zG{D,DD_pD5@BB|BSdB>dbEBGA9.QKƧ?zG{>DDxDxpD\PB BVB^-BQ#E+B(A9.zGtj?zG{H DDLD DOBBBbbwBK|:EBA9. j~#?zG{'DD,DfxDRB(BBVBMe^EBbMA9.tj~?zG{DDDD} D`8B{BFBaBSpEBA9.-V?zG{-DD$Dk(D9(B B BXB@o`EHB/A9.R`A7L?zG{6 D DXDr0DOBvBvB\BKlEBA9.G;dZ?zG{&D DhDeDKBBYBVTBIEPB]A9.p 1&x?zG{`D(D,DDDBwBBjRBFnmEQBcA9. 1&?zG{EDDD}DUHBd9BFBaXBNEIBA9.\O;dZ?zG{NDD$DxDMxBB Bdr"BJGEBA9.E?zG{*DDDDhD]BsB#BWȑBR\EBA9.znO;?zG{dDD,DD_pBBBk{BSd3EBxA9.=pvȴ9X?zG{& DDDeDaBBBVTBT!&EBA9.fffvȴ9?bMzDJDDDnHB݅B^BYBrE@CEqA9.vȴtj~?bM}|DD"Dt$Dr0B6BȴB\BSECC>>A9.++ I?bMrDDDD^B`2BѡB/BPvECDA9.PzG{?bMDDDDBԅBʅB1B7wE CD?mA9.nO;?bM~D\D&DpDvBBBPBcECL,A9.QbM?bM}D&DDjDt$BB==BEDB\ENCJ}A9.ȴ91&x?bMDJDnDD{B݅B0BBwDEZCIw0A9.tj~?bMDDDjDBԅBBEDBE{CL4A9.xտzG{?bMD,DDDBBBBB7EрCJ_VA9.#bM?bMDDDpDBѡBBPBYEfCH@A9. =pؓtj~?bMoDnDD{DXB0BBwDBiECBA9.bM?bMyDDnDDlTB^B0B7B{ECDjA9.+ bM?bMvDDDjDfxBBIBEDBwE CD?mA9.;dZ?bM`DDDD;B6B`2B1BaEC@A9.Kƨ?bM?bMDVD\DD|BjBB&aB]ECMA9.\(?bM?bMyDDbDDlTBBNB1BECJA9.lC?ؓtj~?bMkDDݮDDPBTBjBBRECL_A9.|?bM?bMsDDPDD`B`2BBB9}ECE-A9.O?zG{?bM|DDD(Dr0B̓BvBBECE|A9.-?tj~?bMwDD>DDhlBBޟ:BBrE.CG|A9.{?1&x?bM`DDDDD;BBB2@BlE^CBA9.v?bM?bMgDDD^DI,B BB‡BECIA9.?nO;?bMzDDhDDnHBBB\BrECFdA9.;d?zG{?bMD,DDXDBBBB'BYECPvA9.?+ I?bMDD\DDx BBBYBENCJ}A9.?tj~?bM}DtDD"Dt$B١BBȴB\ECIdA9.bN?vȴ9?bMyDDDDlTBB+BYBECL_A9. ě?1&x?bM{DDD:Dp<BKBKBBOBJ%ECQA9.1&?Q?bMwDDDhlDBB̓BrBfECA A9.A7@bM?bMDDDD}B ZB ZBB'xELCDg8A9.Q@hr ě?bM~}DߢDDvDt$BrBIBcB\E(CHA9.bM@nO;?bMqDDDD\BBB2@BErCGA9.r @tj~?bMoDDDDXB==BzBBECJ8A9.n@zG{?bMvDDDDfxBBBPeBECLRA9.t@$/?bMnDbDPDDVBNBBB[E:CFBOA9. @+ I?bMDDDD{B[B ZBYBwDElCGA9.9X@O;dZ?bMvDD,DFDfxB6BBBBECIPeA9.ě@tj~?bM|DhDPDFDr0BBBBEŀCKBA9.@ ?bMDhDD{D^BBBwDB‡EрCJ_VA9.`A@ vȴ9?bMDDD@DB`2BTBŤqBECO$KA9.@ S?bMsDDDD`BΨB ZBB9E"CHA9.$@ 1&x?bMpD8D DDZB+mB BB\yECDA9.+@ -V?bMDDDDBBIBRBECO$KA9.&y@Q?bMDD DDx B6BXB1BECHgA9.7K@vȴ9X?bMDߢDDDBrB:BPeBE!CUbA9.G@bM?bM{DDD|Dp<BBdB]BJ%uECCA9.Xb@`A7L?bM[DDDFD1B`2BBB iECBA9.hr@hr ě?bMpDVDDLDZBjBѡBg8B\ErCGA9.x@Q?bMnD DDDVBXBBB[rECCwA9.7K@nO;?bMD\DDDBBRBB2@ECFA9.@l?bMrDD DD^Bի-B B9BPkECB_lA9.@tj~?bMDDjDDBBEDB˹B2@E@CEqA9.^5@+?bM{xDD\Dp<Dj`B==BBJ%B)uECCA9.@zG{?bMDhDD{DBB==BwDB\ECGUgA9."@E?bMeDDnDDEDBB0B\BjECB76A9.@$/?bMtDD4DDbBB߰BBIRXE|C?]A9.l@tj?bMzjDDDnHDOB̓B BrBޅ EC67A9. I@+ I?bMhD\DnDDK BB0BBX(xELCDg8A9.@ =p ?bMjDD(DpDOB`2BBPBޅdEjCAEDA9.-V@O;dZ?bM|DdDD^Dr0BB؁B‡BqECCPA9.=p@bM?bM{hDDFDp<DK BRBBJ%BX(-EC8aA9.M@tj~?bMzDDDDnHBBγBBroECBA9.^5?@+ I?bMuD8D>DpDdB+mBޟ:BPBE CK A9.n@?bMjDDDODBBBޅB2@LEC=qlA9.~@1&?bM[DvDDD1BBB&aB ;EgC:6A9.\)@vȴ9?bMuD2DDDdB߷IB؁B7BECG.2A9.v@"`A?bMDbDDDzBNB ZB BECFdA9. @S?bMiDJDD}DMB݅BdB'B[E7C?A9.@(\)?bMxDDXDjDj`B ZB'BEDB)`EpC@PA9.`@1&x?bM}DDDDt$BmB==B B\ECIA9.G@/v?bMqD2DDD\B߷IBvBqlBECFA9.@-V?bMrDPDDD^BBB2@BP|EFCEA9. I@5?|h?bMYDDDjD-B==BγBEDBg]EC@)A9.n@Q?bMurDJDDdD^B݅BPeBBPVEC? A9."@;dZ?bMoDzDDDXBBmB2@BECFdA9.333@vȴ9X?bMsDhD'DDfxBBzBBp *E@C A9.S@ bM?bMttDDD}DSBBB{Bf+E @C~A9.tj@ `A7L?bM~dDDDDaBBgB|BmzEDC A9.@!hr ě?bM}DD D#D_BqB~qBZ&BlrErC A9.E@!Q?bMlDDDDXB BB1BhΨE2C aA9. =@"nO;?bM~D DD`DDJBX(BBlB]E@CA9.@"l?bMDODDGDbBo!BB?Bm/9E5@CA9.t@#tj~?bMDǵDDD\BBBBj/9E5@CA9.9X@#+?bMw'DhDD DBBIB/!B|,EC"A9.Z@$zG{?bM=D&DDDkBB{qBB}eiE@C_A9.zG@$E?bM3DPD DD_B@BX(BBlrHE CA9.@%$/?bM9D[D΋DDGBBB7B?ECA9.j@&tj?bM}~D DDMDMB~qBBlBbmEC A9./@&+ I?bMvD,DDzDgrBB)BzBp8E C A9.@' =p ?bMDDD~De~BBB|mBoEC A9.R@'O;dZ?bMt`DDDDyBBSBByE2C aA9.?|@(bM?bMnDDVDDs*BvABB|BvEC {$A9.`A@(tj~?bM^DtDDq6DDJBnB(BuB]EƀCZA9.%@)+ I?bMfd$DDDDG8BBgBB_+mECA9.@)?bMutD!DD|DdBjBB{uBo<EC q9A9.\@*1&?bMHDD(Dx D>nBB}ByBZ0EOCׯA9.S@*vȴ9?bMqtD-DDs*D>nBBBvBZ0E@CwA9.@+"`A?bM~KDDD^DaBB"BkBmzEC|A9.$/@+S?bMWmD{D9DDuBBAB|BwE @C~A9.E@,(\)?bMs8D'DXDfxD\BzB Bp *Bj/yE@C-A9.fff@,1&x?bMmRD9D D|Dq6BABB{uBuE@CҭA9.+@-/v?bMZW DD{DDe~BR'BBBoECZA9.@--V?bMwNDDDGDkZBIBUB?BrE@CA9.ȴ9@.5?|h?bMeDQDDgrDZBBJBp8BiڅEC|JA9.x@.Q?bMfoDD3DhlD]BB}Bq BkjECC`A9. =p@/;dZ?bM_vDcDDDH2B]B)BB_IE7CA9.+ @/vȴ9X?bMP^DDDDgrB4B(B1Bp8E@CA9.Kƨ@0 ěT?bMXUDDDx DPByBD_ByBdE@CA9.lC@0bM?bMm D9DhDDs*BABBBvEC m#A9.O@0 =p?bMyNDDD|D`BBUB{uBlE|CQA9.{@0`A7L?bMNDDDr0DBVBE7BUBvB\jECA9.@1&x?bMDDD]DmNBE7B BkjBsELC A9.@1hr ě?bMUPDDD|DifBD_B4B{uBqEnCFA9.bN@1lC?bMhp DDDDifB;UBާBBqEC FA9.1&@1Q?bMsDD'DDuB BzB|BwEC A9.Q@2-V?bMmbD9DDt$DbBABBw Bm/E@C_rA9.r @2nO;?bM<DtDLDVDWBnBBgBhHFyE@C-A9.t@2 ě?bMgDDKDSDoBBBB(BtEC LA9.9X@2l?bMzrDDDDhlBrBFB_ZBq ERC pA9.@3333333?bMfhDDDfxD\BB;UBp *Bj/E C/!A9.@3tj~?bMorD3DDt$DUB}BFBw Bg:E7CA9.+@3E?bMbhDDD{Dj`BB;UBzBrECA9.7K@3+?bMbkDD?DDH2BBB}OB_IEƀCZA9.Xb@49XbM?bMjDDDDVDOBBBgBcE=C4#A9.x@4zG{?bM[DDoDt$DmNBBBw BsEJCkA9.@4j~#?bMwDDDp<DLBBIBuBaTE1CA9.^5@4E?bMxV DDD_DifB}pBz|BPBqEjCA9."@5?|hr?bMWDD{Dq6DkZBոBBuBrEC 8VA9.l@5$/?bMDJDDq6DG8BBBuB_+mEC WA9.@5\(?bMyIDDDvDXBBBx BhΨE C/!A9.=p@6tj?bM| DʀDcDD]oBdB]AOAHE3PBA9.@7 =p ?bMbfDD6Dz>DTgBBlA>AoE&B)MA9.C@8bM?bMzQ&gD$D#@DDTBCJBAAkXEOBׯA9.Ƨ@9+ I?bMcDQDUD}DgBBA A$E\BBA9.I^@:1&?bMzDĀD$DuDZB7BCJAAEn0BA9.@;"`A?bM7kDDDDUB BĐBP#AEPBA9.O;@<(\)?bM^xDDD~&DXBB˂AAΨE0BeA9.@=/v?bMD@DDx Df9BXBAAE; BDA9.V@>5?|h?bM=DD@DdD@bBB AANE:pBe7A9.@?;dZ?bMDD@DD^+BȅB AAjEBSA9.\(@@ ěT?bMvjDSDDmDUaBʸB AqAE BA9.;d@@ =p?bMCD-DmDyD]oBB]AAHE`BA9.bM@A&x?bMD|@D]DwDaBBȗAƼA8EKPBA9.`A@AlC?bMf"D-DD&D`BB7CAAEB}A9.hr@B-V?bM~sD@DDDWBSBxAA&EBA9.@B ě?bMtD@DDsDWBBgAGAHFEZB?A9.n@C333333@bMgDgDDxDa `AUAuUAy[Am0KEBlA9.zG@E?|hr@bM;r D|DDPDX AfADA~[Ah|K#E\BpA9.+@GKƧ@bMQ'D`DXD|a`D\uAlA2A{/AjLBEBrJA9.t@IXbM@bM2D6DDyD\ A6AAyAj<K