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 = '00960986000' / Observation ID TARG_ID = '960986 ' / 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 = 605740698.609 / Start time DATE-OBS= '2020-03-12T21:18:18.6' / Start Date TSTOP = 605740940.83536 / Stop time DATE-END= '2020-03-12T21:22:20.8' / 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 = '2020-03-12T21:22:03' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.58746 / UTCF at TSTART CHECKSUM= 'lQcTlOaSlOaSlOaS' / HDU checksum updated 2020-03-12T21:22:03 DATASUM = ' 0' / data unit checksum updated 2020-03-12T21:22:03 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 = '00960986000' / Observation ID TARG_ID = '960986 ' / 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 = '2020-03-12T21:22:03' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 605740698.609 / Start time DATE-OBS= '2020-03-12T21:18:18.6' / Start Date TSTOP = 605740940.83536 / Stop time DATE-END= '2020-03-12T21:22:20.8' / Stop Date UTCFINIT= -24.58746 / 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 = 960986 / Trigger Number XRA_OBJ = 274.457305908203 / [deg] XRT RA location GRB or Object XDEC_OBJ= -16.1082820892334 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 242.226360082626 / TSTOP - TSTART ONTIME = 239.821029663086 / Time on target LIVETIME= 239.821029663086 / Ontime multiplied by DEADC EXPOSURE= 239.821029663086 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -24.58746 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 20627 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 605740940.92496 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 605740940 / ccsds PacKeT SEConds PKTSUBS = 46248 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'Y5iaY2fYY2faY2fY' / HDU checksum updated 2020-03-12T21:22:03 DATASUM = '2885360980' / data unit checksum updated 2020-03-12T21:22:03 END A oMMA oMA oM@WkPA oNVjU@1pA oN @{A oOg@ A oOS@"@A oPxA oS@0Z- A oTW}@/A oUmr@/A oV]O@-A oXM+@-A oY[=@-A oZ,@0G A o[@0Z- A o] @0Z- A o^^z@0Z- A o_W@1{@A o`3@.OA ob!@-A ocb@1{@A od@/A oe䛦@/& A og%@-A ohf{_@.OA oik<@1&a@A ojY@/& A ol)I@1{@A omj9@0Z- A on)_@*RA oo;@1&a@A oq- @/& A orm@.OA os@/& A otخ@.OA ov0Ȋ@/A owqg@/A oxD@.OA oy @0G A o{4@0Z- A o|uw@.OA o}g@-A o~W@/A o8Go@.OA oy7L@.OA o'(@/A o@,UA o<@.OA o|@,UA o@.OA ow@+!@A o?T@.OA o1@/A o @0Z- A oB@,UA oC@,UA ot@0Z- A od@,UA oT@+ A oGD@.OA o4n@-A o$J@,UA o '@-A oK@-A o@0G A o@/& A o ә@/& A oNv@/A oS@/A oТ@0Z- A od@,UA oRA@+!@A or@/A oa@1{@A oQ@.OA oVA@.OA o1@.OA o!l@,UA oI@-A oZ&@.OA o@/& A o@,UA oл@.OA o]@+!@A ou@/A oߠQ@/& A o .@0Z- A oa @/A oo@-A o_@.OA o$O@/& A oe?}@/& A o/Z@.OA o6@/A o(@/& A oh@/& A o©$@.OA o@-A o+@+