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 = '00261664000' / Observation ID TARG_ID = '261664 ' / 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 = 193886217.99404 / Start time DATE-OBS= '2007-02-23T01:16:58.0' / Start Date TSTOP = 193886323.55014 / Stop time DATE-END= '2007-02-23T01:18:43.6' / Stop Date CLOCKAPP= F / If clock correction are applied (F/T) ORIGIN = 'GSFC ' / Source of FITS file CREATOR = 'TDRSS2FITS V3.20' / Program that created this FITS file TLM2FITS= 'V3.20 ' / Telemetry converter version number DATE = '2007-02-23T01:24:18' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -1.782 / UTCF at TSTART CHECKSUM= 'nGnRoFlPnFlPnFlP' / HDU checksum updated 2007-02-23T01:24:18 DATASUM = ' 0' / data unit checksum updated 2007-02-23T01:24:18 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 = '00261664000' / Observation ID TARG_ID = '261664 ' / Target ID SEG_NUM = '0 ' / Segment number CREATOR = 'TDRSS2FITS V3.20' / Program that created this FITS file ORIGIN = 'GSFC ' / Source of FITS file TLM2FITS= 'V3.20 ' / 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 = '2007-02-23T01:24:18' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 193886217.99404 / Start time DATE-OBS= '2007-02-23T01:16:58.0' / Start Date TSTOP = 193886323.55014 / Stop time DATE-END= '2007-02-23T01:18:43.6' / Stop Date UTCFINIT= -1.782 / 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 = 261664 / Trigger Number XRA_OBJ = 153.449752807617 / [deg] XRT RA location GRB or Object XDEC_OBJ= 43.1424140930176 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.55609998107 / 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= -1.782 / [s] UTC Correction TIME UTCCSEC = -2 / UTC Correction Seconds UTCCSUBS= 10900 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 193886323.6473 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 193886323 / ccsds PacKeT SEConds PKTSUBS = 32365 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'HqJIJoG9HoGGHoG9' / HDU checksum updated 2007-02-23T01:24:18 DATASUM = '2529409501' / data unit checksum updated 2007-02-23T01:24:18 END AALA@S4(AC@H[ A&@LaAH@LaAk3@DA @LI A"J@JA$s@Oa@A&d0@HA)N@P(ĠA+:{ @PA-]@IJA/@Q|A1!B@@ܠA3ī`@M A58@IA8 @F{A:,N@Oa@Aqe@Nq A@@K*ABN@C4(AD l@Q|AF)@B@AI"@M 1 AK@@FhAMc9@FhAO~@BDXAQS;@GkPAS@F{AUl@Nq AX4@DAZ2@BDXA\U @LaA^wk@EA`$@PAbF@= Ad>@6{Ag@JAi$T@JAkF@FhAminY@O١@Ao@@dAq@?١@AsR@BDXAu@G8Ax(@EAz8@B@A|[?@LaA~}d@BDXAY!@FA@GkPAo@FA@GkPA*v@UǤAM3@<aAo@CA*o@6{A𑴷,@FAC@= AЦ@DAZ@YA>@<aAat?@KyA@ATA𠦋@CA@<aA뤔@6{A1Q@FA0o@F{ASE@?١@AuJ@?١@A_@6{A@BDXAu@EA@9JA"\@ApAEz@FAg7@C4(A2@@ܠA@C4(ALn@;*A֌@> A`@HA6g@2@AYz%@D#A|C@,aAϞ@6{A@D#Az@3A4@- A(U@CAKN@FAm@= 1 Aސd@;*A@- A{@- A@9J