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 = '00980210000' / Observation ID TARG_ID = '980210 ' / Target ID SEG_NUM = '0 ' / Segment number TIMESYS = 'TT ' / time system MJDREFI = 51910 / MJD reference day 01 Jan 2001 00:00:00 MJDREFF = 0.00074287037 / MJD reference (fraction of day) 01 Jan 2001 00:TIMEUNIT= 's ' / Time unit for timing header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error TSTART = 615174680.20946 / Start time DATE-OBS= '2020-06-30T01:49:28' TSTOP = 615174926.72574 / Stop time DATE-END= '2020-06-30T01:55:21' CLOCKAPP= F / If clock correction are applied (F/T) ORIGIN = 'GSFC ' / Source of FITS file CREATOR = 'TDRSS2FITS V3.22' / Program that created this FITS file TLM2FITS= 'V3.22 ' / Telemetry converter version number DATE = '2020-07-10T07:34:12' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -25.2007400000000 / [s] UTCF at TSTART CHECKSUM= 'ZW7LgW5KZW5KdW5K' / HDU checksum updated 2020-07-10T08:02:40 DATASUM = ' 0' / data unit checksum updated 2020-07-10T07:34:12 OBJECT = 'Burst ' XOBS_ID = 00980210000 / Generating sequence PROCVER = '3.18.12 ' / Processing script version SOFTVER = 'Hea_27Jul2015_V6.17_Swift_Rel4.5(Bld34)_27Jul2015_SDCpatch_17' CALDBVER= 'b20171016_u20170922_x20190910_m20200708' / CALDB index versions used 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 = '00980210000' / Observation ID TARG_ID = '980210 ' / Target ID SEG_NUM = '0 ' / Segment number CREATOR = 'TDRSS2FITS V3.22' / Program that created this FITS file ORIGIN = 'GSFC ' / Source of FITS file TLM2FITS= 'V3.22 ' / 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-8 / [s/s] relative errors expressed as rate TIERABSO= 1.0 / [s] timing precision in seconds CLOCKAPP= F / If clock correction are applied (F/T) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock DATE = '2020-07-10T07:34:12' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 615174680.20946 / Start time DATE-OBS= '2020-06-30T01:51:15' TSTOP = 615174926.72574 / Stop time DATE-END= '2020-06-30T01:55:21' UTCFINIT= -25.2007400000000 / [s] 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 = 980210 / Trigger Number XRA_OBJ = 91.3842849731445 / [deg] XRT RA location GRB or Object XDEC_OBJ= -60.7674865722656 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 246.516279935837 / TSTOP - TSTART ONTIME = 244.140426635742 / Time on target LIVETIME= 244.140426635742 / Ontime multiplied by DEADC EXPOSURE= 244.140426635742 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -25.20074 / [s] UTC Correction TIME UTCCSEC = -26 / UTC Correction Seconds UTCCSUBS= 39963 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 615174926.84636 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 615174926 / ccsds PacKeT SEConds PKTSUBS = 42318 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'Wm2Fal0FZl0Fal0F' / HDU checksum updated 2020-07-10T08:02:40 DATASUM = '2265901352' / data unit checksum updated 2020-07-10T07:34:12 PROCVER = '3.18.12 ' / Processing script version SOFTVER = 'Hea_27Jul2015_V6.17_Swift_Rel4.5(Bld34)_27Jul2015_SDCpatch_17' CALDBVER= 'b20171016_u20170922_x20190910_m20200708' / CALDB index versions used END AUi ϖAUi QAUi Q/@[*AUi ^@- AUi AUiEk@&U@AUi@/& AUiǖ}@.OAUiY@0G AUiIv6@2ɀAUiek@-AUiUG@)AUi E$@+!@AUiM5@0G AUi$@0Z- AUi@-AUi@.OAUiPs@-AUi P@0G AUi!,@,UAUi# @1&a@AUi$T@+ AUi%@.OAUi&֓@-AUi({@+!@AUi)XsX@/& AUi*c5@*RAUi+Ri@.OAUi-BF@,UAUi.\2#@,UAUi/!@+!@AUi0@+ AUi2@+!@AUi3_@,UAUi4r@-AUi5N@*RAUi7"@/AUi8c`@+!@AUi9<@.OAUi:@-AUi<&@+ AUi=go@*RAUi>_@'AUi?O@0Z- AUiA*?h@+ AUiBk/E@*RAUiC!@-AUiD@+!@AUiF-@+!@AUiGn@1{@AUiH@/AUiI@2XAUiK1@.OAUiLr@*RAUiM^@/& AUiN;@*RAUiP5}@/AUiQvl@,UAUiR\@/AUiSL@'!`AUiU9<@1&a@AUiVz,g@.OAUiWC@-AUiX @+ AUiZ<@-AUi[}@+!@AUi\۶@/AUi]@*RAUi_@@*RAUi`@/AUiaš@0Z- AUic]@'!`AUidDz:@*RAUiej@/AUifYK@.OAUihI(@% AUiiH9@+!@AUij(@'AUik@+!@AUim @)AUinKw@)AUioS@*RAUip0@+ AUir @*RAUisO@'!`AUit@+!@AUiuї@-AUiw@/AUixSw\@)AUiyg8@/& AUizW@*RAUi|F@,UAUi}W6@,UAUi~&@'AUi@)AUid@'AUiZ@@1{@AUi@-AUi@'AUi@$K