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 = '01013852000' / Observation ID TARG_ID = '1013852 ' / 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 = 630227506.80846 / Start time DATE-OBS= '2020-12-21T07:11:46.8' / Start Date TSTOP = 630227754.7828 / Stop time DATE-END= '2020-12-21T07:15:54.8' / 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 = '2020-12-21T07:15:36' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -26.1902 / UTCF at TSTART CHECKSUM= 'eHlafEiReEiXeEiX' / HDU checksum updated 2020-12-21T07:15:36 DATASUM = ' 0' / data unit checksum updated 2020-12-21T07:15:36 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 = '01013852000' / Observation ID TARG_ID = '1013852 ' / 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 = '2020-12-21T07:15:36' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 630227506.80846 / Start time DATE-OBS= '2020-12-21T07:11:46.8' / Start Date TSTOP = 630227754.7828 / Stop time DATE-END= '2020-12-21T07:15:54.8' / Stop Date UTCFINIT= -26.1902 / 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 = 1013852 / Trigger Number XRA_OBJ = 214.508285522461 / [deg] XRT RA location GRB or Object XDEC_OBJ= -45.4251327514648 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 247.974339962006 / TSTOP - TSTART ONTIME = 245.580215454102 / Time on target LIVETIME= 245.580215454102 / Ontime multiplied by DEADC EXPOSURE= 245.580215454102 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -26.1902 / [s] UTC Correction TIME UTCCSEC = -27 / UTC Correction Seconds UTCCSUBS= 40490 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 630227754.84484 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 630227754 / ccsds PacKeT SEConds PKTSUBS = 42242 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'KBADM989KAAAK979' / HDU checksum updated 2020-12-21T07:15:36 DATASUM = '2131474522' / data unit checksum updated 2020-12-21T07:15:36 END AAg{AARAAu@YAAnAA @,UAAL@0G AA@1&a@AA ۶@3AA"˒@0G AA#Po@1&a@AA$K@1&a@AA%қ(@/& AA'@4W1AA(Tz@2XAA)kf@1&a@AA*[B@/AA,K@1{@AA-X:@1`AA.*@1&a@AA/@1{@AA1 @1{@AA2[n@/& AA3K@1`AA4'@1{@AA6@/& AA7_@1{@AA8e@1&a@AA9A@7AA;"@2ɀAAY@/& AA@&I@0G AAAg9m@1{@AAB)J@2ɀAAC&@1{@AAE* @/& AAFj@0Z- AAG@.OAAHؙ@0Z- AAJ-u@/& AAKnR@1`AAL/@1&a@AAM @,UAAO1@/& AAPrw@/& AAQhI@3$AARX%@6@AAT5H@1&a@AAUv7@/& AAV'@0Z- AAW@2XAAY9t@0G AAZyQ@2ɀAA[.@1&a@AA\ @1{@AA^<Ǐ@.OAA_}k@1`AA`H@/& AAa$@1&a@AAc@@1&a@AAdv@/& AAef@1`AAgV@2ɀAAhDFt@1`AAi6@/& AAj&@2XAAl@/& AAmH@1`AAn@/AAo@2XAAq |@0G AArKX@/AAs@-AAtͥ@0Z- AAv@1{@AAwOs@/AAxuO@.OAAye,@.OAA{U@1`AA|SD@1&a@AA}4@1&a@AA~%F@1&a@AA#@0G AAW@1&a@AA@2XAA@.OAAԕ@1{@AAZr@-AAN@1{@AAܤ@0G AA@+!@AA^@2XAAti@/& AAdE@0Z- AA!T"@2XAAbC@.OAA3@/AA$_@0G AA%@-