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 = '00609878000' / Observation ID TARG_ID = '609878 ' / 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 = 430075037.20842 / Start time DATE-OBS= '2014-08-18T17:17:17.2' / Start Date TSTOP = 430075142.80186 / Stop time DATE-END= '2014-08-18T17:19:02.8' / 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 = '2014-08-18T17:19:04' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -12.41212 / UTCF at TSTART CHECKSUM= 'ZFeRdEcOZEcOdEcO' / HDU checksum updated 2014-08-18T17:19:04 DATASUM = ' 0' / data unit checksum updated 2014-08-18T17:19:04 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 = '00609878000' / Observation ID TARG_ID = '609878 ' / 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 = '2014-08-18T17:19:04' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 430075037.20842 / Start time DATE-OBS= '2014-08-18T17:17:17.2' / Start Date TSTOP = 430075142.80186 / Stop time DATE-END= '2014-08-18T17:19:02.8' / Stop Date UTCFINIT= -12.41212 / 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 = 609878 / Trigger Number XRA_OBJ = 258.177825927734 / [deg] XRT RA location GRB or Object XDEC_OBJ= -37.6524238586426 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.593439996243 / 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= -12.41212 / [s] UTC Correction TIME UTCCSEC = -13 / UTC Correction Seconds UTCCSUBS= 29394 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 430075142.84498 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 430075142 / ccsds PacKeT SEConds PKTSUBS = 42249 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'bcJRec9PbcGPbc9P' / HDU checksum updated 2014-08-18T17:19:04 DATASUM = '2979088124' / data unit checksum updated 2014-08-18T17:19:04 END Al5[Al BAl1@yAlBH@uǤAlS@tnAldR@tAlva@wDAl`@yJAl@u|Al-@uOAl1<@xL#Alw@u|Alݽ@u^Al@vwAlIf@x=&Alu@v?Al"ӄ@x[ Al4@|tO AlE`B@zAlV@w _Alg@v{Aly2@{uAlw@x[ Al,@vwAl@tAlH@x/AlϏG@yAlV@yAl@yAl^t@uAl@weAl%1@vzAl71@yAlHv@x AlY@uOAlk\@vAl|G@uAlÍz@x/AlĞ@xyAlŰ7@v}Al_F@w>YAlҥ@yJAl@xAl1@umAlv!@vwAl@} Al)@zAl:G@vkAlKL@xyAl\Ԫ@xL#Aln@|4 Al^@zvAlӐ'@uAlԡ6@xAlճ0@uAlv@tAlսQ@xL#Al`@xAlGo@yAl ~@zAl@{gAl,;@yAl=_@{yAlN@w _Al_@xAlq0@v}Alu%@xAl㓻@yAl@wAAlHA@zgAlǍP@x2AlӮ@I Al@|aAl]@xjAl +@xAl@zAl//@w _Al@u@xAlQV@xAlc@v!AltFt@z+Al@yhAl1@xjAl@@u"Al^@x,Alʤ@|C Al @zߠAl/@vqAluy@w>Al@zAl!@xjAl2GE@yAlCT@xAlTҳ@vnAmf@yAmw^ @xAm/@weAm@yAm/@x/Amt@v}