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= 'XRT ' / Instrument name OBS_ID = '01262165000' / Observation ID TARG_ID = '1262165 ' / 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 = 751513166.00946 / Start time DATE-OBS= '2024-10-25T01:39:26.0' / Start Date TSTOP = 751513271.64512 / Stop time DATE-END= '2024-10-25T01:41:11.6' / 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 = '2024-10-25T01:40:50' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -34.41306 / UTCF at TSTART CHECKSUM= 'jNhUjKeRjKeRjKeR' / HDU checksum updated 2024-10-25T01:40:50 DATASUM = ' 0' / data unit checksum updated 2024-10-25T01:40:50 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / 8-bit bytes NAXIS = 2 / 2-dimensional binary table NAXIS1 = 18 / width of table in bytes NAXIS2 = 100 / number of rows in table PCOUNT = 0 / size of special data area GCOUNT = 1 / one data group (required keyword) TFIELDS = 3 / 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 = 'RATE ' / label for field 2 TFORM2 = '1D ' / data format of field: 8-byte DOUBLE TUNIT2 = 'count/s ' / physical unit of field TTYPE3 = 'XRTMODE ' / label for field 3 TFORM3 = '1I ' / data format of field: 2-byte INTEGER EXTNAME = 'RATE ' / name of this binary table extension MESGNAME= 'XRT_LIGHTCURVE' / Name of the message COMMENT XRTMODE values COMMENT 1=null 2=Short Image 3=Long Image 4=Pile-Up Photodiode COMMENT 5=Low Rate Photodiode 6=Windowed Timing 7= Photon-Counting COMMENT 8=RAW data 9=Bias map 10=Stop TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'XRT ' / Instrument name OBS_ID = '01262165000' / Observation ID TARG_ID = '1262165 ' / 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 = '2024-10-25T01:40:50' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 751513166.00946 / Start time DATE-OBS= '2024-10-25T01:39:26.0' / Start Date TSTOP = 751513271.64512 / Stop time DATE-END= '2024-10-25T01:41:11.6' / Stop Date UTCFINIT= -34.41306 / UTCF at TSTART TIMEPIXR= 0. / Bin time beginning=0.0 middle=0.5 end=1. HDUCLASS= 'OGIP ' / Format conforms to OGIP standards HDUCLAS1= 'LIGHTCURVE' / Time ordered data HDUCLAS2= 'TOTAL ' / Source + background HDUCLAS3= 'RATE ' / Data provided as rate NUMBINS = 100 / Number of valid bins in the lightcurve TRIGGER = 1262165 / Trigger Number XRA_OBJ = 333.337768554688 / [deg] XRT RA location GRB or Object XDEC_OBJ= 83.5659713745117 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.635660052299 / TSTOP - TSTART ONTIME = 107.359703063965 / Time on target LIVETIME= 107.359703063965 / Ontime multiplied by DEADC EXPOSURE= 107.359703063965 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -34.41306 / [s] UTC Correction TIME UTCCSEC = -35 / UTC Correction Seconds UTCCSUBS= 29347 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 751513271.72482 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 751513271 / ccsds PacKeT SEConds PKTSUBS = 36241 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'DA1JD61JDA1JD51J' / HDU checksum updated 2024-10-25T01:40:50 DATASUM = '2045205938' / data unit checksum updated 2024-10-25T01:40:50 END AÆe—'5üAÆe—'8 AÆe—'„cI@k—AÆe—( y@bžF AÆe—(•©¨@em¶ÀAÆe—)L0@^éÑ AÆe—)¦ï_@] 1 AÆe—*/’Ž@YJñAÆe—*¸5½@ZîAÆe—+@ØE@X,àAÆe—+É{t@V·tàAÆe—,R£@VóhàAÆe—,ÚÁ+@YJñAÆe—-ce@[f…AÆe—-ì1@S¬ÀAÆe—.t«`@T×ÔÀAÆe—.ýMè@Q” AÆe—/…ñ@SpÀAÆe—0”F@Y†åAÆe—0—6Î@_Ù¡@AÆe—1Ùý@Wã8àAÆe—1¨},@NéÑ AÆe—21 \@QÌp AÆe—2¹Âã@SpÀAÆe—3Bf@Wã8àAÆe—3Ë B@S4(ÀAÆe—4S¬q@\’I AÆe—4ÜNù@M‚ AÆe—5dòÐ@R¼@ AÆe—5í•ÿ@LaAÆe—6v8†@IJñAÆe—6þÛ¶@K¢yAÆe—7‡~å@]‚ AÆe—8"@M 1 AÆe—8˜Äœ@E‹°ÀAÆe—9!gË@Oa¹@AÆe—9ª ú@L’I AÆe—:2®)@RDX AÆe—:»P±@E‹°ÀAÆe—;Cóà@IJñAÆe—;Ì—@FóhàAÆe—wÆT@IÂÙAÆe—?iƒ@IÂÙAÆe—?‰³@IJñAÆe—@¯:@H[ àAÆe—@šRi@C¬ÀAÆe—A"õ™@HÓàAÆe—A«˜È@M 1 AÆe—B4;O@ATˆ AÆe—B¼Þ@C¬ÀAÆe—CE®@EÈÀAÆe—CÎ$Ý@C4(ÀAÆe—DVÇe@Mú AÆe—Dßj”@Mú AÆe—Ehk@H[ àAÆe—Eð°ò@c.ÀAÆe—FyT"@::ÁAÆe—G÷Q@NéÑ AÆe—GŠš€@ATˆ AÆe—H=@L’I AÆe—H›à7@SèÀAÆe—I$ƒf@OÙ¡@AÆe—I%î@P(Ä AÆe—J5É@UO¼ÀAÆe—J¾lL@K*‘AÆe—KG|@<aAÆe—KÏ²@L’I AÆe—LXU2@IJñAÆe—Làøb@E‹°ÀAÆe—Mi›‘@?Ù¡@AÆe—Mò>@/Ù¡@AÆe—Nzáï@D›àÀAÆe—O…@>éÑ AÆe—OŒ'¦@V{€àAÆe—PÊÕ@0Ü AÆe—Pn@?Ù¡@AÆe—Q&4@B¼@ AÆe—Q®³¼@2¼@ AÆe—R7Vë@/Ù¡@AÆe—R¿ú@>éÑ AÆe—SHI@/Ù¡@AÆe—SÑ?Ñ@2¼@ AÆe—TYã@-ú AÆe—Tâ†/@YÂÙAÆe—Uk(·@7kPàAÆe—UóËæ@,aAÆe—V|o@0Ü AÆe—Wì@B¼@ AÆe—Wµt@C4(ÀAÆe—XX£@([ àAÆe—XžûÒ@([ àAÆe—Y'žZ@J:ÁAÆe—Y°A‰@0Ü AÆe—Z8ä¸@8[ àAÆe—ZÁ‡è@P ¬ AÆe—[J*o@= 1