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 = '00977310000' / Observation ID TARG_ID = '977310 ' / 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 = 613629695.19376 / Start time DATE-OBS= '2020-06-12T04:41:35.2' / Start Date TSTOP = 613629800.82124 / Stop time DATE-END= '2020-06-12T04:43:20.8' / 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 = '2020-06-12T04:48:43' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -25.09998 / UTCF at TSTART CHECKSUM= 'eIaQhGaPeGaPeGaP' / HDU checksum updated 2020-06-12T04:48:43 DATASUM = ' 0' / data unit checksum updated 2020-06-12T04:48:43 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 = '00977310000' / Observation ID TARG_ID = '977310 ' / 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 = '2020-06-12T04:48:43' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 613629695.19376 / Start time DATE-OBS= '2020-06-12T04:41:35.2' / Start Date TSTOP = 613629800.82124 / Stop time DATE-END= '2020-06-12T04:43:20.8' / Stop Date UTCFINIT= -25.09998 / 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 = 977310 / Trigger Number XRA_OBJ = 302.662017822266 / [deg] XRT RA location GRB or Object XDEC_OBJ= -45.3532791137695 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.627479910851 / 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= -25.09998 / [s] UTC Correction TIME UTCCSEC = -26 / UTC Correction Seconds UTCCSUBS= 45001 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 613629800.84494 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 613629800 / ccsds PacKeT SEConds PKTSUBS = 42247 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'SAA2T611SA81S581' / HDU checksum updated 2020-06-12T04:48:43 DATASUM = '1606597212' / data unit checksum updated 2020-06-12T04:48:43 END AI!AIϤ@AI&@c.AI@QAI,A@H[ AI @X[ AI=<@F{AI*@O١@AINK@P(ĠAIpz@Nq AI`@SAI1@G8AIqY`@PdAI@J:AI@Oa@AI A@XAI@_a@AI@M AI)@K*AI- @XAIp;@T#AI?j@S4(AIǵ@UOAIPY!@QTAIP@M AIa@SAIA_@QAIr@ZvAI@LI AI*@QpAI @PdAIo@QTAI+@LaAI[@RLAI/X@UOAI@WDAI@@Q|AIA@S4(AIQP@ZvAIڇ@] AIc*@] AI@T_AIto@ZvAI@ZAI@^q AIYK@\VU AI@ZAIZ@\= AIA@SAI0@` ʠAI@@X[ AIB*o@\VU AI͟@SAISp@VtAI@ZAId@R@AIY @^ AIu;@RdAI@VhAIAJ@QTAIz@Nq AI@a6AI!*0@RLAI`@UǤAI2p@M AIo@Nq AIC@T#AIX@X,AIT@`(ĠAIݞ@G8AIfA@FhAI;@J:AIwj@N AI)@J:AI!@CAIpP@DAI@ZAI"_@ATAIX@TAI3@VtAI@JAIEAt@bdAI@VAIV+@P(ĠAI*Z@P(ĠAIg@SAIp@RDXAIy@@M AI@RDXAIXO@LaAI@[fAI@TAI$A@QpAIe@QAI5@EAI*@N AIFK@CAIo@CAIX@P(ĠAI1@?١@