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 = '00276045000' / Observation ID TARG_ID = '276045 ' / 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 = 198588146.61188 / Start time DATE-OBS= '2007-04-18T11:22:26.6' / Start Date TSTOP = 198588385.47392 / Stop time DATE-END= '2007-04-18T11:26:25.5' / 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 = '2007-04-18T11:27:27' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -1.8981 / UTCF at TSTART CHECKSUM= 'fEiRh9fOfCfOf9fO' / HDU checksum updated 2007-04-18T11:27:27 DATASUM = ' 0' / data unit checksum updated 2007-04-18T11:27:27 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 = '00276045000' / Observation ID TARG_ID = '276045 ' / 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 = '2007-04-18T11:27:27' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 198588146.61188 / Start time DATE-OBS= '2007-04-18T11:22:26.6' / Start Date TSTOP = 198588385.47392 / Stop time DATE-END= '2007-04-18T11:26:25.5' / Stop Date UTCFINIT= -1.8981 / 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 = 276045 / Trigger Number XRA_OBJ = 228.489685058594 / [deg] XRT RA location GRB or Object XDEC_OBJ= 51.205265045166 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 238.862039983273 / TSTOP - TSTART ONTIME = 236.941436767578 / Time on target LIVETIME= 236.941436767578 / Ontime multiplied by DEADC EXPOSURE= 236.941436767578 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -1.8981 / [s] UTC Correction TIME UTCCSEC = -2 / UTC Correction Seconds UTCCSUBS= 5095 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 198588385.52476 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 198588385 / ccsds PacKeT SEConds PKTSUBS = 26238 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'cQq9dNn6cNn6cNn6' / HDU checksum updated 2007-04-18T11:27:27 DATASUM = '3676409129' / data unit checksum updated 2007-04-18T11:27:27 END Am9HVAm4Am0r@WkPAmR@,aAmu@3Am@@{Amﺢ^@IAm/@$Am@9JAm"EAm#@NAn@LQ;`An r@K@An.@JAnN@K!@An@LQ;`Anj@P@An"*@P@An'y@J An,ʦL@LbAn1e@K!@An6%1@K An;@K@An@١w@K@AnE`@PAnJ@O& AnO/@NAnT@ONAnYYu@J An^@O& Ancջ@JAnh-@JAnmT@ONAnrs@OAnx@JRAn}X@JAn M+@MAn @NAn@MAn@JAnE@M飠An@K!@An Ĝ@M飠An$o@K An(@@NAn,T@OAn/'@H!)An3|@K An7< @H]An:@NAn>R@ISwAnBw@MAnF4@ONAnI @H]AnM@MoAnQpP@JAnU/@ONAnX@IAn\@M飠An`k{@JAnd(N@NAng!@ISwAok3@KQ Ao od@NAos @IAov@IAoz@LbAo~\@NOAo"@L.`Ao'w@OAo,J@JAo1W@H!)Ao6/@MoAo;@L.`Ao@@HPAoEPH@JRAoJ@MP|AoO-@LbAoT@JAoYKs@MAo^F@HT6Aocǹ@MP|Aoh@ISwAomC@NAorq@IAowD@MoAo|@MAo?)@GT`Ao@E Aoи@M飠Aoz@K!@Ao7@LUAo@HCAo߶@NOAosm@K Ao0@@K!@Ao@I jAo%@K@Aok@JAo+k@Lb