SIMPLE = T / file does conform to FITS standard BITPIX = 8 / number of bits per data pixel NAXIS = 1 / number of data axes NAXIS1 = 0 / length of data axis 1 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 HISTORY fimgcreate 1.0b at 2007-08-10T15:23:36 DATE = '2007-08-10T15:23:36' / file creation date (YYYY-MM-DDThh:mm:ss UT) INSTRUME= 'UVOT ' TSTART = 156888474.6065 TSTOP = 156888674.49674 DATE-OBS= '2005-12-21T20:03:20' DATE-END= '2005-12-21T20:11:14' OBJECT = 'GRB051221b' PROCVER = '3.10.9 ' / Processing script version SOFTVER = 'Hea_06Dec2006_V6.1.2_Swift_Rel2.6(Bld20)patched3_14Mar2007' / HEASOFTCALDBVER= 'b20061014_u20061116_x20070330_m20070330' / CALDB index versions used 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:CLOCKAPP= F / If clock correction are applied (F/T) TIMEUNIT= 's ' / Time unit for timing header keywords ATTFLAG = 100 / Orgin of attitude information UTCFINIT= 0.0905600000000000 / [s] UTCF at TSTART CHECKSUM= '9GEADF959FEACF95' / HDU checksum updated 2007-08-10T15:52:25 DATASUM = ' 0' / data unit checksum updated 2007-08-10T15:52:25 END XTENSION= 'IMAGE ' / IMAGE extension BITPIX = 32 / number of bits per data pixel NAXIS = 2 / number of data axes NAXIS1 = 160 / length of data axis 1 NAXIS2 = 160 / length of data axis 2 PCOUNT = 0 / required keyword; must = 0 GCOUNT = 1 / required keyword; must = 1 MESGNAME= 'UVOT_GENI_IMAGE' / Name of the message TELESCOP= 'SWIFT ' / Telescope (mission) name INSTRUME= 'UVOTA ' / Instrument name OBS_ID = '00173904000' / Observation ID TARG_ID = '173904 ' / 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-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 = '2007-08-10T15:19:28' / file creation date (YYYY-MM-DDThh:mm:ss UT) UTCFINIT= 0.0905600000000000 / [s] UTCF at TSTART TSTART = 156888474.6065 / Start time DATE-OBS= '2005-12-21T20:07:54' TSTOP = 156888674.49674 / Stop time DATE-END= '2005-12-21T20:11:14' TELAPSE = 199.890240013599 / TSTOP - TSTART ONTIME = 199.890240013599 / Sum of GTIs LIVETIME= 199.890240013599 / Ontime multiplied by DEADC EXPOSURE= 199.890240013599 / Total exposure, with all known correction DEADC = 1. / dead time correction EXTNAME = 'vv156888474I' / Extension name HDUCLASS= 'OGIP ' / Format conforms to OGIP standards HDUCLAS1= 'IMAGE ' / Image data HDUCLAS2= 'TOTAL ' / Total data values DATAMODE= 'IMAGEEVENT' / Instrument operating mode EXPID = 156888474 / uvot EXPosure ID FILTER = 'V ' / FILTER used in exposure DETNAM = '600 ' / WHEELPOS RA_PNT = 312.403247559633 / [deg] Ra Pointing DEC_PNT = 53.0580885256544 / [deg] Dec Pointing PA_PNT = 218.3387 / [deg] Position angle (roll) WINDOWX0= 795 / Lower left hand X WINDOWY0= 874 / Lower left hand Y WINDOWDX= 320 / X Window width WINDOWDY= 320 / Y Window width NFRAMES = 18106 / number of frames included GRBLOC = 0 / GRB Location 1=XRT 0=MODE CMD BPEHWIN = 0 / BPE hardware window height BINX = 2 / Binning in the x-axis BINY = 2 / Binning in the y-axis CMPCNTMN= F / Compression losses didn't occurred in the imageCMPOTHRS= 8191 / Overflow of lossy compression algorithm CMPUTHRS= -8192 / Underflow of lossy compression algorithm CTYPE1 = 'RAWX ' / WCS axis type CUNIT1 = 'pixel ' / WCS axis unit CRVAL1 = 795.5 / WCS reference value CDELT1 = 2 / WCS coordinate increment CRPIX1 = 1. / WCS Reference point CTYPE2 = 'RAWY ' / WCS axis type CUNIT2 = 'pixel ' / WCS axis unit CRVAL2 = 874.5 / WCS reference value CDELT2 = 2 / WCS coordinate increment CRPIX2 = 1. / WCS Reference point UTCCTIME= 0.09056 / [s] UTC Correction time UTCCSEC = 0 / UTC Correction Seconds UTCCSUBS= 4528 / [2*10**(-5) s] UTC Correction SubSeconds PKTTIME = 156888683.3767 / [s] ccsds PacKeT TIME=PKTSEC+PKTSUBS*2e-5 PKTSEC = 156888683 / ccsds PacKeT SEConds PKTSUBS = 18835 / [2*10**(-5) s] ccsds PacKeT SUBSeconds APID = 843 / Application Process Identifier BLANK = -2147483648 / Data null value CHECKSUM= '7AmO73kM79kM79kM' / HDU checksum updated 2007-08-10T15:52:25 DATASUM = '103994 ' / data unit checksum updated 2007-08-10T15:19:28 PROCVER = '3.10.9 ' / Processing script version SOFTVER = 'Hea_06Dec2006_V6.1.2_Swift_Rel2.6(Bld20)patched3_14Mar2007' / HEASOFTCALDBVER= 'b20061014_u20061116_x20070330_m20070330' / CALDB index versions used ATTFLAG = 100 / Orgin of attitude information END                                                                       ):  J/     Jao#  !,                                                                                                               1$   (J,    t     4 $        'n]a       !Yza"                                                                                                                 .'  ,.                 !Yu$    1mW$  /'                           : *0     !