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 = '00639433000' / Observation ID TARG_ID = '639433 ' / Target ID SEG_NUM = '0 ' / Segment number TIMESYS = 'TT ' / time system MJDREFI = 51910 / MJD reference day 01 Jan 2001 00:00:00 MJDREFF = 0.00074287037 / MJD reference (fraction of day) 01 Jan 2001 00:TIMEUNIT= 's ' / Time unit for timing header keywords TIERRELA= 1.0E-08 / [s/s] Estimated relative clock rate error TIERABSO= 1. / [s] Estimated absolute clock offset error TSTART = 452046200.80978 / Start time DATE-OBS= '2015-04-30T00:21:01' TSTOP = 452046306.40368 / Stop time DATE-END= '2015-04-30T00:25:03' CLOCKAPP= F / If clock correction are applied (F/T) ORIGIN = 'GSFC ' / Source of FITS file CREATOR = 'TDRSS2FITS V3.22' / Program that created this FITS file TLM2FITS= 'V3.22 ' / Telemetry converter version number DATE = '2015-05-10T04:29:15' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -13.5138400000000 / [s] UTCF at TSTART CHECKSUM= 'XT9KaR8JRR8JXR8J' / HDU checksum updated 2015-05-10T05:01:01 DATASUM = ' 0' / data unit checksum updated 2015-05-10T04:29:15 OBJECT = 'Burst ' PROCVER = '3.16.08 ' / Processing script version SOFTVER = 'Hea_21Dec2012_V6.13_Swift_Rel4.0(Bld29)_14Dec2012_SDCpatch_15' CALDBVER= 'b20090130_u20111031_x20140610_m20150302' / CALDB index versions used 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 = '00639433000' / Observation ID TARG_ID = '639433 ' / Target ID SEG_NUM = '0 ' / Segment number CREATOR = 'TDRSS2FITS V3.22' / Program that created this FITS file ORIGIN = 'GSFC ' / Source of FITS file TLM2FITS= 'V3.22 ' / 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-8 / [s/s] relative errors expressed as rate TIERABSO= 1.0 / [s] timing precision in seconds CLOCKAPP= F / If clock correction are applied (F/T) TIMEREF = 'LOCAL ' / Time reference (barycenter/local) TASSIGN = 'SATELLITE' / Time assigned by clock DATE = '2015-05-10T04:29:15' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 452046200.80978 / Start time DATE-OBS= '2015-04-30T00:23:17' TSTOP = 452046306.40368 / Stop time DATE-END= '2015-04-30T00:25:03' UTCFINIT= -13.5138400000000 / [s] 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 = 639433 / Trigger Number XRA_OBJ = 326.510589599609 / [deg] XRT RA location GRB or Object XDEC_OBJ= -27.9192447662354 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 105.593900024891 / 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= -13.51384 / [s] UTC Correction TIME UTCCSEC = -14 / UTC Correction Seconds UTCCSUBS= 24308 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 452046306.54172 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 452046306 / ccsds PacKeT SEConds PKTSUBS = 27086 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'WoRhamOhYmOhamOh' / HDU checksum updated 2015-05-10T05:01:01 DATASUM = '1570543238' / data unit checksum updated 2015-05-10T04:29:15 PROCVER = '3.16.08 ' / Processing script version SOFTVER = 'Hea_21Dec2012_V6.13_Swift_Rel4.0(Bld29)_14Dec2012_SDCpatch_15' CALDBVER= 'b20090130_u20111031_x20140610_m20150302' / CALDB index versions used END AxMAy<AyJ@f?AzM@_a@A{풸@UOA|@VA~&@` ʠA!d@SA2@TACA@YAU7@XAf|@SAw@S4(A񭅉@W8A񭆚N{@[fA񭇫@X[ A񭈼8@Q|A G@SAeV@WDA@LaA@QA8q@RLA$}@R@A5@LaAG =@LaAXOL@HAi@T#Azں@EA񭕌!@O١@A񭖝gw@`ܠA񭗮@IJA񭘿4@DA7@[yA~R@BDXAı@EA @9JAQn@R@A'}@= A8@6{AJ!@8[ A[hI@FAl@> A}@BDXA񭥏:@?١@A񭦠s@ATA񭧱@2@A @EAR?@K*AN@2@Aݭ@3A$ @1pAjj@4A*)@LaA;@4AM:@*:A^E@([ AoǤ@- A񭴁@DA񭵒S@@ܠA񭶣 @?١@A񭷴@6{A$@KyAk<@5AK@4A@- A =@IJAf@5A-u@;*A? @*:APS@;*AaA@7kPAr@$AĄ&@"@Aŕl @&{AƦ@4AǷ{@([ A=@2@Aڄ8@KyAʗ@] A@= 1 AV@T_A@,aA0r@C4(AB&@([ ASl@> Ad>@@Au@= 1 Aԇ?@<aA՘ @G8A֩@$A׻w@/١@AV@@ܠAݝ4@- A@0ܠA(@ATAm@{A"@@ܠA3n@@ܠAE@@HAV@3