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 = '01071765000' / Observation ID TARG_ID = '1071765 ' / 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 = 652370228.59344 / Start time DATE-OBS= '2021-09-03T13:57:08.6' / Start Date TSTOP = 652370334.22924 / Stop time DATE-END= '2021-09-03T13:58:54.2' / 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 = '2021-09-03T14:03:52' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -27.66298 / UTCF at TSTART CHECKSUM= 'dKaRgIWPdIaPdIWP' / HDU checksum updated 2021-09-03T14:03:52 DATASUM = ' 0' / data unit checksum updated 2021-09-03T14:03:52 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 = '01071765000' / Observation ID TARG_ID = '1071765 ' / 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 = '2021-09-03T14:03:52' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 652370228.59344 / Start time DATE-OBS= '2021-09-03T13:57:08.6' / Start Date TSTOP = 652370334.22924 / Stop time DATE-END= '2021-09-03T13:58:54.2' / Stop Date UTCFINIT= -27.66298 / 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 = 1071765 / Trigger Number XRA_OBJ = 186.206283569336 / [deg] XRT RA location GRB or Object XDEC_OBJ= -62.6471481323242 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.635799884796 / TSTOP - TSTART ONTIME = 107.359703063965 / Time on target LIVETIME= 107.359703063965 / Ontime multiplied by DEADC EXPOSURE= 107.359703063965 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -27.66298 / [s] UTC Correction TIME UTCCSEC = -28 / UTC Correction Seconds UTCCSUBS= 16851 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 652370334.34174 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 652370334 / ccsds PacKeT SEConds PKTSUBS = 17087 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'oBmep9kcoAkco7kc' / HDU checksum updated 2021-09-03T14:03:52 DATASUM = '1741354201' / data unit checksum updated 2021-09-03T14:03:52 END Aq0KAq0Aq0) @[yAq0W:@1pAq0oi@- Aq0i@F{Aq0 @:Aq0zXO@  Aq0@2@Aq0@::Aq0A5@&{Aq0e@ ܠAq0%@ ܠAq0*@H[ Aq06@,aAq0pz@"@Aq0H@6{Aq0ж@7kPAq0YZ@([ Aq0@0ܠAq0j@*:Aq0B@6{Aq0{@6{Aq0L@EAq0+@= 1 Aq0@0ܠAq0r2@TAq0'b@0ܠAq0@0ܠAq08[@  Aq0H@ Aq0Iw@{Aq0D@7kPAq0Z.@*:Aq0]@EAq0l-@2@Aq0л@ Aq0}sC@,aAq0r@{Aq0@= 1 Aq0\@2@Aq0X@([ Aq0(@ATAq0E@D#Aq09@7kPAq0Œ@N Aq0K.@FhAq0@;*Aq0\t@4Aq0+@;*Aq0m@;*Aq0]@*:Aq0@*:Aq0@@- Aq0Go@{Aq0@> Aq0&@3Aq0*0U@;*Aq0ӄ@{Aq0;v @5Aq0;@$Aq0Lj@@ܠAq0_@3Aq0^!@;*Aq0Q@  Aq0oH@ Aq0@&{Aq0@= Aq0 1f@,aAq0@9JAq0w@G8Aq0L@<aAq0+@ ܠAq0`@X,Aq0=2@- Aq0Ŧa@/١@Aq0NI@5Aq0@1pAq0_G@;*Aq02v@;*Aq0pզ@{Aq0x-@@dAq0ł\@{Aq0 @;*Aq0Ɠa@V{Aq0@6{Aq0Ǥr@1pAq0-J@&{Aq0ȵ@1pAq0>@5Aq03@4Aq0Oֶ@5Aq0y@*:Aq0a@Nq Aq0鿜@SAq0rb@M 1 Aq0@6{Aq0̓*@7kPAq0 LY@0ܠAq0Δ@J