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 = '00596641000' / Observation ID TARG_ID = '596641 ' / 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 = 419733608.1946 / Start time DATE-OBS= '2014-04-21T00:40:08.2' / Start Date TSTOP = 419733853.17174 / Stop time DATE-END= '2014-04-21T00:44:13.2' / 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 = '2014-04-21T00:45:40' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -11.91242 / UTCF at TSTART CHECKSUM= '0LfR1JdP0JdP0JdP' / HDU checksum updated 2014-04-21T00:45:40 DATASUM = ' 0' / data unit checksum updated 2014-04-21T00:45:40 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 = '00596641000' / Observation ID TARG_ID = '596641 ' / 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 = '2014-04-21T00:45:40' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 419733608.1946 / Start time DATE-OBS= '2014-04-21T00:40:08.2' / Start Date TSTOP = 419733853.17174 / Stop time DATE-END= '2014-04-21T00:44:13.2' / Stop Date UTCFINIT= -11.91242 / 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 = 596641 / Trigger Number XRA_OBJ = 336.356384277344 / [deg] XRT RA location GRB or Object XDEC_OBJ= 3.63464522361755 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 244.977140009403 / 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= -11.91242 / [s] UTC Correction TIME UTCCSEC = -12 / UTC Correction Seconds UTCCSUBS= 4379 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 419733853.34264 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 419733853 / ccsds PacKeT SEConds PKTSUBS = 17132 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= '2IcQ2IaQ2IaQ2IaQ' / HDU checksum updated 2014-04-21T00:45:40 DATASUM = '1531911451' / data unit checksum updated 2014-04-21T00:45:40 END Ah1NAhAi|p@T#Aj.@  Ak@@*:AlQLAq@5 Att?@5#fAvS@3Ay2a@3A{@3A~@6U@Aэ@8PA @7!`A@7An@5 AM@6U@A,=@4W1A E@7!`A@4KAh@6U@A"@3A@4W1AiD@6@AH@3A#(@7A!@3A&@7!`AC@5 A*@5 A@4KA.do@3AD(@5 A2"@6U@AK@7!`A5@5#fA@1`A9'@3A@4KA=^J@6U@Aƿ>@5 AA@8T6Av@5#fAD/@6@Aƻ@6U@AHR@7!`Ay@7ALZ@6U@A9.@3AP@5#fAQ@7!`AS @4KAո@6U@AW}@5#fAv6@7A[T@7A4Y@4W1A_@5#fA@4W1Ab5@5 A@5 AfX@8PAp@7AjO@5 A/@7An=@5#fA@5 A q`@5#fA @9Au@7!`Al@9AyJ@5 A*@6@A} @3A@5#fAȊ@4KA!D@6@A#@9 jA&ff@8T6A(F @5#fA+ $@4KA-@5#fA0 @4W1A2õ@8PA5@6U@A7@8T6A:`B@7!`A