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 = '00718023000' / Observation ID TARG_ID = '718023 ' / 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 = 498419591.20942 / Start time DATE-OBS= '2016-10-17T17:53:11.2' / Start Date TSTOP = 498419696.84436 / Stop time DATE-END= '2016-10-17T17:54:56.8' / 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 = '2016-10-17T17:54:46' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -17.02202 / UTCF at TSTART CHECKSUM= 'aCbPbCbOaCbOaCbO' / HDU checksum updated 2016-10-17T17:54:46 DATASUM = ' 0' / data unit checksum updated 2016-10-17T17:54:46 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 = '00718023000' / Observation ID TARG_ID = '718023 ' / 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 = '2016-10-17T17:54:46' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 498419591.20942 / Start time DATE-OBS= '2016-10-17T17:53:11.2' / Start Date TSTOP = 498419696.84436 / Stop time DATE-END= '2016-10-17T17:54:56.8' / Stop Date UTCFINIT= -17.02202 / 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 = 718023 / Trigger Number XRA_OBJ = 142.757446289062 / [deg] XRT RA location GRB or Object XDEC_OBJ= 43.1468086242676 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.634939968586 / 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= -17.02202 / [s] UTC Correction TIME UTCCSEC = -18 / UTC Correction Seconds UTCCSUBS= 48899 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 498419696.925 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 498419696 / ccsds PacKeT SEConds PKTSUBS = 46250 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'a6e6a5b3a5b3a5b3' / HDU checksum updated 2016-10-17T17:54:46 DATASUM = '1814860814' / data unit checksum updated 2016-10-17T17:54:46 END AG5AGJAG;G@bdAGM@XAG^V@arAGoc@TAGr@e1AG'@^5 AGn/@YJAG@SAG@R4AG?@RdAGY@V?AGh@` ʠAG @PdAGX%@T_AG-@VhAG>@Q|AGP+A@VAGaq@ZAGr@[*AG@VAGB@[mAG{@UAG@YJAG8@`(ĠAG[@\VU AG력@V{AG@`AG-b@`(ĠAGs@]F% AG0@WDAGA.@T_AGSD=@TAGd@[fAGu@dAGY@RLAG]@UAG@R@AGt@UǤAG/@W8AGu@UOAGA@qvAGP@XAGG@\VU AG" @ajAG3k@PdAGEz@[*AGV_@SAGg7@WDAGx@YAG2@\VU AGyS@^q AG@\VU AG@QpAGI@V?AG.@] 1 AG֌@[*AG@fzAGcI@] AG%@d}AG6@eAGH5@b&^AGY{t@eAGj@YAG|1@b&^AG̍M@@dAAG͞@dAGίخ@c.AG @pAGek@jAG@f]AG(@mF% AG8@jvAG~@h2AG(@h[ AG: R@hAGKP@n AG\@m AGm@k*AG"}@g8AGܐh@kyAGݡ@m AG޲I@iAG:@dAGՁ@j:AGe@iAG @jvAG T"@n AG@oa@AG+@@pAG=$@lC AGNj@s AG_[@oa@AGp@jУAG>@gJAG쓃'@kmAGɆ@k*AG@m AGVC@o@