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 = '00729600000' / Observation ID TARG_ID = '729600 ' / 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 = 505119233.59958 / Start time DATE-OBS= '2017-01-03T06:53:53.6' / Start Date TSTOP = 505119483.60702 / Stop time DATE-END= '2017-01-03T06:58:03.6' / 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 = '2017-01-03T06:58:02' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -18.4036 / UTCF at TSTART CHECKSUM= 'dJkPgJhPdJhPdJhP' / HDU checksum updated 2017-01-03T06:58:02 DATASUM = ' 0' / data unit checksum updated 2017-01-03T06:58:02 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 = '00729600000' / Observation ID TARG_ID = '729600 ' / 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 = '2017-01-03T06:58:02' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 505119233.59958 / Start time DATE-OBS= '2017-01-03T06:53:53.6' / Start Date TSTOP = 505119483.60702 / Stop time DATE-END= '2017-01-03T06:58:03.6' / Stop Date UTCFINIT= -18.4036 / 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 = 729600 / Trigger Number XRA_OBJ = 155.775451660156 / [deg] XRT RA location GRB or Object XDEC_OBJ= -68.4855041503906 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 250.007440030575 / TSTOP - TSTART ONTIME = 246.715057373047 / Time on target LIVETIME= 246.715057373047 / Ontime multiplied by DEADC EXPOSURE= 246.715057373047 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -18.4036 / [s] UTC Correction TIME UTCCSEC = -19 / UTC Correction Seconds UTCCSUBS= 29820 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 505119483.64896 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 505119483 / ccsds PacKeT SEConds PKTSUBS = 32448 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'lp7Joo4Ilo4Ilo4I' / HDU checksum updated 2017-01-03T06:58:02 DATASUM = '2785495288' / data unit checksum updated 2017-01-03T06:58:02 END A~A@PܠA-Ai+@'A 9@5 A l@/Aʬ@+!@Ape@,UA@-Atk'@0Z- AJ@/& Ax*@,UA R@+!@A!{ @+!@A#@0G A&@*RA)@1&a@A+k@'A.KI@/A0+@-A3 @/A5t@,UA8 .@0Z- A:@/A=@.OA?j@.OABJb@1`AD*@,UAG @,UAI@/ALG@.OAN@,UAQ @.OASi@,UAV#I{@/& AX)5@/A['@,UA]@.OA`*ɰ@-Abi@+!@Ae.r@0G Agj+@/Aj2I@/Al)@.OAo6 W@/& Aq@,UAt9@0G Av@0Z- Ay=@/A{iD@/A~AH@-A(@.OAEp@/& A)@+!@AH@0G Aʧ@.OAL@2XAh^@1&a@APIf@0Z- A) @/& AT@0G A@0Z- AWK@0G A٨@0G A[ @+!@Ah@-A_H@.OA(9@/Ac@1&a@A@.OAfe@/& Am@0Z- Aj'@0G Ag@1`AnG@2XA(@/Ar[@0G A@/& Au@0G A@/Ay@1{@AhI@/A}H@,UA'@0G AӁt@4W1A.@1&a@A؄@1`A@0G A݈@.OA gb@2ɀAHk@4W1A($@1&a@A@2XA@4W1Aȟ@1&a@AX@2ɀA@2XAg@2ɀAG@3$A'=@1`