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 = '01351790000' / Observation ID TARG_ID = '1351790 ' / 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 = 780394297.6 / Start time DATE-OBS= '2025-09-24T08:11:37.6' / Start Date TSTOP = 780394931.52 / Stop time DATE-END= '2025-09-24T08:22:11.5' / 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 = '2025-09-24T08:20:05' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -36.38458 / UTCF at TSTART CHECKSUM= '0SiU3QiR0QiR0QiR' / HDU checksum updated 2025-09-24T08:22:30 DATASUM = ' 0' / data unit checksum updated 2025-09-24T08:20:05 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 = '01351790000' / Observation ID TARG_ID = '1351790 ' / 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 = '2025-09-24T08:20:05' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 780394721.6 / Start time DATE-OBS= '2025-09-24T08:18:41.6' / Start Date TSTOP = 780394931.52 / Stop time DATE-END= '2025-09-24T08:22:11.5' / 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 = 1351790 / Trigger Number TRIGSEC = 780394745 / Trigger time in seconds TRIGSUBS= 33200 / [2*10**(-5) s] TRIGger SUBSeconds TRIGTIME= 780394745.664 / [s] MET TRIGger Time = TRIGSEC+TRIGSUBS*2e-5 DATETRIG= '2025-09-24T08:18:29.3' / UTC date of the trigger TZDELTA = -6 / Trigger delta time in 10e-3 seconds units TRIGSATF= 492 / Trigger table index. Highest signif. satisfied BRA_OBJ = 51.8650857219976 / [deg] BAT GRB Object RA location BDEC_OBJ= 74.6519011868246 / [deg] BAT GRB Object DEC location1 BATTHETA= 54.7547492980957 / [deg] BAT GRB Object Theta on detector BATPHI = -165.170700073242 / [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 = -36.38458 / [s] Packet #1 UTC Correction time P1UTCCS = -37 / Packet #1 UTC Correction Seconds P1UTCCSS= 30771 / [2*10**(-5) s] Packet #1 UTC Corr SubSeconds PKT1TIME= 780394823.67924 / [s] ccsds PacKeT #1 Time= PKTSEC+PKTSUBS*2e-5 PKT1SEC = 780394823 / ccsds PacKeT #1 SEConds PKT1SUBS= 33962 / [2*10**(-5) s] ccsds PacKeT #1 SUBSeconds PKT1SEQ = 98 / 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= 'MMkEOJiEMJiEMJiE' / HDU checksum updated 2025-09-24T08:22:30 DATASUM = '875923096' / data unit checksum updated 2025-09-24T08:22:30 P2UTCC = -36.38458 / [s] Packet #2 UTC Correction time P2UTCCS = -37 / Packet #2 UTC Correction Seconds P2UTCCSS= 30771 / [2*10**(-5) s] Packet #2 UTC Corr SubSeconds PKT2TIME= 780394930.78486 / [s] ccsds PacKeT #2 Time=PKTSEC+PKTSUBS*2e-5 PKT2SEC = 780394930 / ccsds PacKeT #2 SEConds PKT2SUBS= 39243 / [2*10**(-5) s] ccsds PacKeT #2 SUBSeconds PKT2SEQ = 99 / Packet#2 CCSDS sequence number P3UTCC = -36.38458 / [s] Packet #3 UTC Correction time P3UTCCS = -37 / Packet #3 UTC Correction Seconds P3UTCCSS= 30771 / [2*10**(-5) s] Packet #3 UTC Corr SubSeconds PKT3TIME= 780394983.483 / [s] ccsds PacKeT #3 Time=PKTSEC+PKTSUBS*2e-5 PKT3SEC = 780394983 / ccsds PacKeT #3 SEConds PKT3SUBS= 24150 / [2*10**(-5) s] ccsds PacKeT #3 SUBSeconds PKT3SEQ = 100 / Packet#3 CCSDS sequence number END AAp8bM?HYdD(DDUD/A7AAAkEpFBDAAq6vȴ9X?EGpD|DdDSD1A|AײQAǞAEpBD2AArfff4/w?!.~DDD[D9AՙA\ A{AV>qEtjBEAAs3333C$?u6D0D$DKHD(pANAuAXA* EnBCb]AAt1lC?%DD`D\D%AӸA/A AoElTBBtQAAt0bM?x/KDD`DOXD+A]WAڡA#AEoBBCAAu,hr ?(5^DD DPHD.AۨAdA&A.EErBEtAAvfff)^5?|?QGDD0DTDSD*ANAdAǞA:$EoBCAAw333&+ I?AL:mDDDQD1AvAAAL4ErBDdAAx#S?& DDDj8DIA{A6AAEfBJUAAx ěT?zG{r7DDDrD-pBpq;B{?4B\pB:>EFBAAx"`?zG{wD|DDAD7BrBvBD٧B?EsBܴAAyR-V?zG{eDtDXDCPD#HBl.8BvBEqB4EkB AAyGj~"?zG{LDDDD@ByBx2BcBDs\EBAAyp"`A?zG{m|DDpDVD4xBnBs|BNmB=Et$BAAy"`A?zG{n{DD DRD6Bo#BsYZBMe^B>EsBEAAy\tj~?zG{pDDDWD(BoʥBx2BOeB74EuPB݀%AAyKƧ?zG{k}5DDDqhD,Bn(0BsB[B9lExBAAzztj?zG{zCDDD|XD/BsBvB` B;7"ERB⎟AAz=pj~#?zG{nDDhD_pD*PBo#BBSdB8oE} BAAzffftj~?zG{m DD,DPD(BnBuiBL@nB74Eq6BۤAAz\)-V?zG{dnDDDTD9(Bk{Bo#BN'B@o`EpnBHAAzQ`A7L?zG{sAD4DDzD=B{BpZB_BBtQ;EBAAzG;dZ?zG{t DPDDQ`D3Bq]B{?4BLBB=gExBAA{ =p 1&x?zG{nwDD|D`8D'0Bo#BrBSpB6ErBCD|DDxpDAA~ I@tj~?bMuDXDDdDdB'BʅBBSECC>>AA~@zG{?bMjDDDDOB̓BIBBޅJEC=AA~-V@$/?bM{bD@DDp<D?hBŤqBʅBJ%B%EC7 AA~=p@+ I?bMw`DDzDhlD;BʅBBrBEyC0AA~M@O;dZ?bMfPDdD:DG8D@BBBOBBErC.*AA~^5?@tj~?bM\D@DDx D3BŤqBʅBBާ#EC6AA~n@ ?bMqhD"DD\DK BȴBʅBBX(&EGC78(AA~~@ vȴ9?bMr\DDjD^D3BBEDBPBާEuC/7SAA~\)@ S?bMc`DDDA\D;BʅB̓BwBEC4YAA~v@ 1&x?bM~hD@DpDvDK BŤqBPBcBX(ESC5AA~ @ -V?bMs\DDD`D3BqlBγB9BާE&C3AA~@Q?bMukDDDdDPB7B ZBBREC5`AA~`@vȴ9X?bMhDDRDx DK B&aBBBX(E C4]AA~G@bM?bMhWDD@DK D)BBŤqBX(BEmNC,:AA~@`A7L?bMzdD^D DnHDCPB‡B BrB@"EMC6IAA I@hr ě?bMsXD^DD`D+B‡BIB9BSE_C4AAn@Q?bMYDLD^D4D-Bg8B‡B߰Bg4EC9^AA"@nO;?bM~^DXDDvD7B'BIBcB}p(EC7\AA333@l?bMyZDlTDDzD/BBBB;UEyC0AAC@tj~?bMudD:D{DdDCPBBOBwDBB@EwC/RAAS@+?bM~lWDvDDRD)BcB7NBa8BE`C'9AAdZ@zG{?bMhD"D|DDK BȴB]B7NBX(.E;C8 AAtj@E?bMoDXDXDzDXB'B'BB'EC7bAA@$/?bMkDDD|DPB&aBѡB]BRFECE#C;,AAzG@/v?bMi^D.DDMD7B|BBB}p$EC6AAC@-V?bMjUD"DFDOD&BȴBBޅB.E{wC1K9AA@5?|h?bMkND"DDPDXBȴBBRB Eq6C-9AA1@Q?bMvPDDDfxD@B&aBBBEmC,h'AAj@;dZ?bMoTDpD4DXD$BPB߰BB4ExC0BAA@vȴ9X?bMLDDD=tD:B}OBYBYBFBOEh-BAAh@ bM?bM+RDD DPD.BxAA5?}@%$/?bM12DDjDaD;BpBBmzBX E|qB7AAV@&tj?bM(<DDLDK DEDBiMBBaXB^EyBxAAvȴ@&+ I?bMmDD9D\D?hBgBABj/BZ+E?B1AAP@' =p ?bM,DD|D4DDK BQBBQBaXRECAAQ@'O;dZ?bMC_DDcD^DcBhgB]BkBnZoECAA@(bM?bMmDD9DUD&BBBABg:BKE{BAA#@(tj~?bM:2DRDjD^D@bBpBBkB[NE BAA@)+ I?bM8EDXDDGDe~B B׃B?Bo{ECKcAA;dZ@)?bM2FDjD.DwD.BBBxBQ Z(EBAA\(@*1&?bM.7DvDDx DH2BKBbByB_I0EBAA|@*vȴ9?bM8@DXD@DmNDLB BBsBaTB?B{Bq B^:E{BaAAA7@--V?bM2EDjDDADF>BB׃BB^:WEC3AAbM@.5?|h?bM8>!DXDFDDH2B BQBB_IdE5CAAn@.Q?bM*mDD9DcD/BZBABnZBQ4EYC"pAA @/;dZ?bM2<DjDLDND'BBBb[BLEu\BxAAě@/vȴ9X?bMB;D:DDdDJ&B0B{BoD4DFDmND1BBQBsBR+E?B1AAG@0`A7L?bM&?DDDj`DPBB$BrBd+E?B1AAhr@1&x?bM6WD^D{DDBBBBE@C_rAA7K@1hr ě?bM9D5DD`DPBB7BlBd  E},BAA@1lC?bM;'DD DUD5B{B/!Bg:BUEẁB!AA@1Q?bMH)D(DDWD:B}B`BhHFBW E},BAA@2-V?bM:#DRDD`D3BpBErBlBSExǀBcAA I@2nO;?bM#8DDXDifD;BErB BqBX E|qB7AA-V@2 ě?bM IDDDDJD=tB BB]BYEwBAAM@2l?bM<FDLD.D^D+BBBkBOIE_BAAn@3333333?bMT8DDXDA\D&B.B B[BKEyBAA\)@3tj~?bM9,DD|DSD+B7BQBf+BOIEuBAA @3E?bM=ADDDLD2BBBaTBS^E{wB:AA`@3+?bMFDD.DI,DDXBB}OB^:BC'EbBAA =@6tj?bMDDFDZD (BJB QAAErBvo>AAZ@7 =p ?bM]D@DjDR4D1BBA=AEs BvAA/@8bM?bM9DD @DIjDBB~AeA.23Em|BsAA`A@9+ I?bMDD@D]1D/BB%A'AѡEu=@BwAAS@:1&?bMybHD@DDMD0B-BEAmAEiBqAAfff@;"`A?bMxDDDXD2BBmAΨAӃEt@Bw\AAx@<(\)?bMnD0@D@DV[D% BB_rA~!A XEoBtAAlC@=/v?bMiD@DDU"D-B_rBA&AvEtBw|#AA@>5?|h?bMD@D@D]oD9B BoAHA`2 EzBzFFAAr @?;dZ?bMGDހD$@DLՀD1BBAJAGEn`BtIAA@@ ěT?bMBD%DUDKD9MB[BbAA;Esx BvAAx@@ =p?bM}tDB@D4DWD,BhB AHFAϺEvVBx)AAl@A&x?bMY?DD@DJD$NBBQA6$Aʬ}Ei7 Bqv=AA~@AlC?bM\DDDQD/ BB 8VAA1Es BvAA I@B-V?bMRDDDOD8BB`AŅAֆEsXBvAA@B ě?bMLDҀDVDND/ BCBA[A1bEp[@Bu!|AA1'@C333333@bM8 o pDUDXDQ`D2AbA,pAeAS^>Er~ A7AAz@E?|hr@bM DƀD@DU2 D)@ AZAEAfݜAMH>ErGpAAA ě@GKƧ@bMx ~ EDIDz0DRD0 AL:AٻAeAQ2=EqAĝAA-V@IXbM@bM' c DаDDQ*D,A$tAAdAOfA=En A9AA9X@KdZ1@bM> eD`D`DUAD2 AxAAfARB>ErA=AAE@Mp =p@bMA +DDDV D.A=AAgMAPݞ=Eq AyAAQ@O|hr@bMC DpDƀDKD*AAZAaAN8 Er0AAA𨛥@US@bMp x D$D DRsD,=AӭA/!Ae_AO D.1A`AW"AeDAP=Eq.0AAA@[ I^5@bMg J DİDTDO@D) A]A>Ac֫AMJ=?Eo>AAA`A@\1&x@bM! 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