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 = '00688452000' / Observation ID TARG_ID = '688452 ' / 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 = 486485075.39306 / Start time DATE-OBS= '2016-06-01T14:44:35.4' / Start Date TSTOP = 486485321.86468 / Stop time DATE-END= '2016-06-01T14:48:41.9' / 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 = '2016-06-01T14:49:04' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= -16.35328 / UTCF at TSTART CHECKSUM= 'bIdJeIZIbIdIbIZI' / HDU checksum updated 2016-06-01T14:49:04 DATASUM = ' 0' / data unit checksum updated 2016-06-01T14:49:04 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 = '00688452000' / Observation ID TARG_ID = '688452 ' / 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 = '2016-06-01T14:49:04' / file creation date (YYYY-MM-DDThh:mm:ss UT) TSTART = 486485075.39306 / Start time DATE-OBS= '2016-06-01T14:44:35.4' / Start Date TSTOP = 486485321.86468 / Stop time DATE-END= '2016-06-01T14:48:41.9' / Stop Date UTCFINIT= -16.35328 / 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 = 688452 / Trigger Number XRA_OBJ = 235.025192260742 / [deg] XRT RA location GRB or Object XDEC_OBJ= 64.5095443725586 / [deg] XRT DEC location GRb or Object TERMMODE= 0 / XRT termination mode TELAPSE = 246.471619963646 / TSTOP - TSTART ONTIME = 244.140426635742 / Time on target LIVETIME= 244.140426635742 / Ontime multiplied by DEADC EXPOSURE= 244.140426635742 / Total exposure, with all known correction DEADC = 1. / dead time correction UTCCTIME= -16.35328 / [s] UTC Correction TIME UTCCSEC = -17 / UTC Correction Seconds UTCCSUBS= 32336 / [2*10**(-5) s] UTC Correction SUBSeconds PKTTIME = 486485321.92502 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 486485321 / ccsds PacKeT SEConds PKTSUBS = 46251 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 1253 / Application Process Identifier CHECKSUM= 'S2UeU0RdS0RdS0Rd' / HDU checksum updated 2016-06-01T14:49:04 DATASUM = '2925777964' / data unit checksum updated 2016-06-01T14:49:04 END A,SdA,SMA,TP{5@UA,Ua@BDXA,VsA,[4@7A,^1@@7!`A,`@8T6A,c4c@5 A,e@6U@A,h8@5#fA,jp@7!`A,m@5#fA,yũ@5#fA,|G@4W1A,~g@4W1A,KG@7!`A,'=@5 A,O@4W1A,`@6U@A,R@5#fA,Ԣ4@3A,V@4KA,`W@7!`A,Z@@3A,y@4KA,]3@3$A,@4KA,aV@7A,@4KA,ezx@4W1A,Z2@3$A,i8@5 A,@6U@A,l@2XA,(@6@A,p@3$A,@4W1A,ts@6U@A,R@5#fA,x1'@5 A,@3A,{J@5 A,ͳ@3A,m@3A,@4KA,̃k@3A,I@6U@A,ч)@3A, l@5#fA,֊@4KA, Ǐ@6U@A,ێ@4KA,b@2ɀA,d@5#fA,B@3A,">@1&a@A,@3A,a@3A,@3$A,@1{@A,~=@4KA,\@3A,#<`@5 A,@2ɀA,&3@5#fA,@4W1A-*V@4W1A-@4W1A-.uy@3A-V@3A- 24@1&a@A- U@3$A-5@3$A-x@1&a@A-9@1`A-@3$A-=n@4KA-M@2ɀA-A,(@3A-! @7A-$D@3A-&@4W1A-)H@3A-+ʈ'@3$A-.Lg@1&a@A-0FJ@3A-3P$@1&a@A-5l@5 A-8S@3A-:@1`A-=W@3$A-?ـ@3A-B[`k@1`A-D>@1{@A-G_@1`