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 = '00750298000' / Observation ID TARG_ID = '750298 ' / 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 = 515064333.1931 / Start time DATE-OBS= '2017-04-28T09:25:33.2' / Start Date TSTOP = 515064579.11942 / Stop time DATE-END= '2017-04-28T09:29:39.1' / 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 = '2017-04-28T09:29:43' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -18.9774 / UTCF at TSTART CHECKSUM= 'aGjNb9jKaEjKa9jK' / HDU checksum updated 2017-04-28T09:29:43 DATASUM = ' 0' / data unit checksum updated 2017-04-28T09:29:43 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 = 99 / 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 = '00750298000' / Observation ID TARG_ID = '750298 ' / 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 = '2017-04-28T09:29:43' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 515064333.1931 / Start time DATE-OBS= '2017-04-28T09:25:33.2' / Start Date TSTOP = 515064579.11942 / Stop time DATE-END= '2017-04-28T09:29:39.1' / Stop Date UTCFINIT= -18.9774 / 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 = 99 / Number of valid bins in the lightcurve TRIGGER = 750298 / Trigger Number XRA_OBJ = 330.059967041016 / [deg] XRT RA location GRB or Object XDEC_OBJ= 26.9121475219727 / [deg] XRT DEC location GRb or Object TERMMODE= 2 / XRT termination mode TELAPSE = 245.926320016384 / TSTOP - TSTART ONTIME = 242.767974853516 / Time on target LIVETIME= 242.767974853516 / Ontime multiplied by DEADC EXPOSURE= 242.767974853516 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -18.9774 / [s] UTC Correction TIME UTCCSEC = -19 / UTC Correction Seconds UTCCSUBS= 1130 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 515064594.53722 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 515064594 / ccsds PacKeT SEConds PKTSUBS = 26861 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'IJOBIGL9IGLAIGL9' / HDU checksum updated 2017-04-28T09:29:43 DATASUM = '631726467' / data unit checksum updated 2017-04-28T09:29:43 END AB 1oAB ,@Oa@ABrq@&{ABи? AB>@-ABr@6U@AB@7!`ABu@3AB@;@AB!y9@4KAB#{@3AB&}\@4W1AB(<@5 AB+@3AB.@2XAB0@@1`AB3I@5 AB5@7AB8 xl@5 AB:X%@7AB=7@4KAB?H@9ABBQ@9 jABD @: ABGt@@=AB]@A`AB`(qa@A&a@ABbQ@C ABe,/@F"@ABg=@E ABj/E@G!`ABl@IABo3h@J ABq"@K@ABt7l@OABvM@MoABy;-M@Q?AB{ @SAB~>p@Rr6AB)@T>ABB@ZRABĊ@ZLABFjU@Xm ABJ@] ABJ(x@^AB1@^iD@ABM:@a3$ABǤ@cABQ]@d$$ABӇ@fABUe@gABE9@j_|@ABY&B@mC@AB@nAB\e@p:DAB@rxAB`@t0 AB⃐@t`ABdcI@wABC@wABh!l@y&`AB&@{!@ABk@~bAB@ABoQ@/AB @nF`ABs^t@/AB>-@`ABw6@AB@`ABzY@AB@l?AB~|@u AB{5@q#AB؂\>@BAB:@@AB݆a@XAB@ AB@S@AB @gAB獙F@ב@ABx@ABWi@AB7"@ @AB@% AB@x@ABM@fAB@b ABp@.ABt*@݀ACU2@)