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 = '01192483000' / Observation ID TARG_ID = '1192483 ' / 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 = 716697800.80944 / Start time DATE-OBS= '2023-09-18T02:43:20.8' / Start Date TSTOP = 716697906.44348 / Stop time DATE-END= '2023-09-18T02:45:06.4' / 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 = '2023-09-18T02:47:35' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -32.02864 / UTCF at TSTART CHECKSUM= 'bEWQcDTQbDTQbDTQ' / HDU checksum updated 2023-09-18T02:47:35 DATASUM = ' 0' / data unit checksum updated 2023-09-18T02:47:35 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 = '01192483000' / Observation ID TARG_ID = '1192483 ' / 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 = '2023-09-18T02:47:35' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 716697800.80944 / Start time DATE-OBS= '2023-09-18T02:43:20.8' / Start Date TSTOP = 716697906.44348 / Stop time DATE-END= '2023-09-18T02:45:06.4' / Stop Date UTCFINIT= -32.02864 / 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 = 1192483 / Trigger Number XRA_OBJ = 261.585540771484 / [deg] XRT RA location GRB or Object XDEC_OBJ= -15.9018325805664 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.634039998055 / 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= -32.02864 / [s] UTC Correction TIME UTCCSEC = -33 / UTC Correction Seconds UTCCSUBS= 48568 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 716697906.65678 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 716697906 / ccsds PacKeT SEConds PKTSUBS = 32839 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'K1PAN1N7K1NAK1N7' / HDU checksum updated 2023-09-18T02:47:35 DATASUM = '2014751287' / data unit checksum updated 2023-09-18T02:47:35 END A[dgA[drA[d\@KA[es2@|A[e@EA[fxB@A[g @>A[gH@'tA[hbx@9A@A[h@6A[i//@xGA[iK^@EA[j@@YA[jɑ@A[kR4D@hA[ks@A[lcz@`A[l@k@A[mtY@`A[md0@A[n_@chA[o@`A[oM@OA[pE@0A[pu@8QA[q16@@A[q@A[rB|[@@A[r@ǤA[sS¹@DA[se@A[te @VA[tG@mA[uvOv@M A[u@ A[v@OA[w8\@`A[wی@EA[x!~@ A[x!@ `A[y2r@H>@A[yg@7A[zD @b A[z̮@"A[{UQ@A[{^@ A[|f@IA[|:@reA[}w@^A[~s@"A[~#@hA[@eA[j@3A[# @4@A[@ǤA[4S@A[@}A[E@ A[@A[5@`A[@mA[G'@iA[@ A[Xn@NA[I@A[i@A[W@`A[z/@A[@ A[@@(A[@K A[@`A[&*@@A[K@A[7o@#A[@A[H1@uA[Y`@A[Y@A[@A[kBF@M A[u@pA[|L@?fA[+@iA[@A[r2@A[b@3`A['@РA[[@En