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 = '00972614000' / Observation ID TARG_ID = '972614 ' / 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 = 611334295.20958 / Start time DATE-OBS= '2020-05-16T15:04:55.2' / Start Date TSTOP = 611334543.17268 / Stop time DATE-END= '2020-05-16T15:09:03.2' / 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 = '2020-05-16T15:08:45' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -24.95086 / UTCF at TSTART CHECKSUM= 'fGfPfEdNfEdNfEdN' / HDU checksum updated 2020-05-16T15:08:45 DATASUM = ' 0' / data unit checksum updated 2020-05-16T15:08:45 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 = '00972614000' / Observation ID TARG_ID = '972614 ' / 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 = '2020-05-16T15:08:45' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 611334295.20958 / Start time DATE-OBS= '2020-05-16T15:04:55.2' / Start Date TSTOP = 611334543.17268 / Stop time DATE-END= '2020-05-16T15:09:03.2' / Stop Date UTCFINIT= -24.95086 / 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 = 972614 / Trigger Number XRA_OBJ = 274.572906494141 / [deg] XRT RA location GRB or Object XDEC_OBJ= -16.1801624298096 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 247.963100075722 / 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= -24.95086 / [s] UTC Correction TIME UTCCSEC = -25 / UTC Correction Seconds UTCCSUBS= 2457 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 611334543.24484 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 611334543 / ccsds PacKeT SEConds PKTSUBS = 12242 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'knc7knc7knc7knc7' / HDU checksum updated 2020-05-16T15:08:45 DATASUM = '3326057729' / data unit checksum updated 2020-05-16T15:08:45 END A8KӄA8KѪA8L@R4A8LA8O>#@!{@A8P@&U@A8Q@'!`A8S@(PA8TA@*RA8U"@+ A8VòW@*RA8X4@% A8YE@&U@A8ZE@'A8[q"@&U@A8]`@% A8^IP3@+!@A8_@@'!`A8`/@'A8b y@.OA8cMV@(PA8d@*RA8eg@'A8gD@(PA8hPy@+ A8iV@*RA8jҬ2@'!`A8lg@#A8mTD@)A8nzx@'A8oi@'!`A8qY@% A8rXIf@)A8s8@,UA8t(x@,UA8v@'A8w\@*RA8xf@*RA8y@(PA8{@)A8|_Ŭ@+ A8}@% A8~᤾@,UA8"@)A8c@)A8s@,UA8c@,UA8&R@+!@A8gB@'A81'@'A8!@'A8*@+ A8k@,UA8@+!@A8@*RA8-@1&a@A8n@*RA8@-A8@*RA81&@'A8r}@+!@A8l7@*RA8\@-A85KI@&U@A8v;%@/A8+@)A87@(PA89 @'A8y@)A8}@*RA8Z@-A8<6@+ A8}k@-A8H@*RA8$@,UA8@Y@+!@A8v6@-A8ek@*RA8UG@-A8DE$@(PA83@+!@A8#@*RA8j@(PA8H@-A8|@(PA8X@+ A8 э@)A8Kj@0Z- A8@*RA8͠{@)A8@'A8O~@,UA8n@/& A8^@+ A8M@+ A8S=@.OA8”-@/& A8@1&a@A8 @*RA8Vz@-