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 = '00650617000' / Observation ID TARG_ID = '650617 ' / 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 = 459780758.80922 / Start time DATE-OBS= '2015-07-28T12:52:38.8' / Start Date TSTOP = 459781003.89348 / Stop time DATE-END= '2015-07-28T12:56:43.9' / 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 = '2015-07-28T12:57:56' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -14.91522 / UTCF at TSTART CHECKSUM= 'ZEaMfDTKZDYKfDYK' / HDU checksum updated 2015-07-28T12:57:56 DATASUM = ' 0' / data unit checksum updated 2015-07-28T12:57:56 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 = '00650617000' / Observation ID TARG_ID = '650617 ' / 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 = '2015-07-28T12:57:56' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 459780758.80922 / Start time DATE-OBS= '2015-07-28T12:52:38.8' / Start Date TSTOP = 459781003.89348 / Stop time DATE-END= '2015-07-28T12:56:43.9' / Stop Date UTCFINIT= -14.91522 / 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 = 650617 / Trigger Number XRA_OBJ = 292.290100097656 / [deg] XRT RA location GRB or Object XDEC_OBJ= 33.9090423583984 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 245.084259986877 / TSTOP - TSTART ONTIME = 242.700622558594 / Time on target LIVETIME= 242.700622558594 / Ontime multiplied by DEADC EXPOSURE= 242.700622558594 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -14.91522 / [s] UTC Correction TIME UTCCSEC = -15 / UTC Correction Seconds UTCCSUBS= 4239 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 459781003.92494 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 459781003 / ccsds PacKeT SEConds PKTSUBS = 46247 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'kZdelWaZkWabkWaZ' / HDU checksum updated 2015-07-28T12:57:56 DATASUM = '503444428' / data unit checksum updated 2015-07-28T12:57:56 END Ag) AgAg!@C$Ag<T@CWAg]@C$Ag?@DW1Ag@CAgC9@D$$Ag^@DW1AgG?@C$Ag@DW1AgJ@CAg@BAgN@C$AgО@CAgR~R@CAg\@DW1AgVAg0@A`Ag@DW1Ago@A`Ag @B֠Ag"@AYn@Ag%@@G Ag'oT@AYn@Ag*M@A`Ag,-w@CAg/# 0@A`Ag1@@G Ag4&̣@C Ag6\@>OAg9*@A{@Ag;k@B֠Ag>.J8@@T@Ag@)@AYn@AgC2 @C$AgEd@@' AgH5@@' AgJ@B%`AgM9@A&a@AgOf@B%`AgR=H@BXAgT'@BXAgWA%@@Z- AgY@@Z- Ag\Dŗ@CAg^ƥQ@>AgaH @BXAgcd@C$AgfLD|@BɀAgh$5@C$AgkP@@: AgmX@AYn@AgpSa@@G Agrա@@T@AguW@?Agwa=@@' Agz[?@@Z- Ag|`@@G Ag_i@