SIMPLE = T / conforms to FITS standard BITPIX = 8 / array data type NAXIS = 0 / number of array dimensions EXTEND = T CREATOR = 'GBM_healpix.py 2.0' FILETYPE= 'IMAGE ' / Name for this type of FITS file TELESCOP= 'GLAST ' / Name of mission/satellite INSTRUME= 'GBM ' / Specific instrument used for observation OBSERVER= 'Meegan ' / GLAST Burst Monitor P.I. ORIGIN = 'GIOC ' / Name of organization making file DATE = '2025-08-16T06:15:47' / file creation date (YYYY-MM-DDThh:mm:ss UT) DATE-OBS= '2025-08-16T01:30:10' / Date of start of observation DATE-END= '2025-08-16T01:30:10' / Date of end of observation TIMESYS = 'TT ' / Time system used in time keywords TIMEUNIT= 's ' / Time since MJDREF, used in TSTART and TSTOP MJDREFI = 51910 / MJD of GLAST reference epoch, integer part MJDREFF = '7.428703703703703e-4' / MJD of GLAST reference epoch, fractional partTSTART = 777000615.599999 / [GLAST MET] Observation start time TSTOP = 777000615.791999 / [GLAST MET] Observation stop time FILENAME= 'healpix.777000615.fit' / Name of this file TRIGTIME= 777000615.599999 / Trigger time relative to MJDREF, double precisiOBJECT = '' / Burst name in standard format, yymmddfff RADECSYS= 'FK5 ' / Stellar reference frame EQUINOX = 2000.0 / Equinox for RA and Dec RA_OBJ = 156.72 / Calculated RA of burst DEC_OBJ = 58.87 / Calculated Dec of burst ERR_RAD = 5.93 / Calculated Location Error Radius THETA = 0.0 / [deg] Angle from spacecraft zenith PHI = 0.0 / [deg] Angle from spacecraft +X axis toward +Y LOC_SRC = 'Fermi, GBM' / Mission/Instrument providing the localization CLASS = 'GRB ' / Classification of trigger OBJ_CLAS= 'GRB ' / Classification of trigger GEO_LONG= 0.0 / [deg] Spacecraft geographical east longitude GEO_LAT = 0.0 / [deg] Spacecraft geographical north latitude RA_SCX = 0.0 / [deg] Pointing of spacecraft x-axis: RA DEC_SCX = 0.0 / [deg] Pointing of spacecraft x-axis: Dec RA_SCZ = 0.0 / [deg] Pointing of spacecraft z-axis: RA DEC_SCZ = 0.0 / [deg] Pointing of spacecraft z-axis: Dec LOC_VER = '' / Version string of localizing software LOC_ENRG= '(50, 300)' / Energy range used for localization LMETHOD = 'Interactive' / Method of localization CHECKSUM= 'HfQDJZQAHdQAHZQA' / HDU checksum updated 2025-08-16T01:15:47 DATASUM = '0 ' / data unit checksum updated 2025-08-16T01:15:47 END XTENSION= 'BINTABLE' / binary table extension BITPIX = 8 / array data type NAXIS = 2 / number of array dimensions NAXIS1 = 8192 / length of dimension 1 NAXIS2 = 192 / length of dimension 2 PCOUNT = 0 / number of group parameters GCOUNT = 1 / number of groups TFIELDS = 2 / number of table fields TTYPE1 = 'PROBABILITY' / Differential probability per pixel TFORM1 = '1024E ' TTYPE2 = 'SIGNIFICANCE' / Integrated probability TFORM2 = '1024E ' PIXTYPE = 'HEALPIX ' / HEALPIX pixelisation ORDERING= 'NESTED ' / Pixel ordering scheme, either RING or NESTED COORDSYS= 'C ' / Ecliptic, Galactic or Celestial (equatorial) EXTNAME = 'HEALPIX ' / name of this binary table extension NSIDE = 128 / Resolution parameter of HEALPIX FIRSTPIX= 0 / First pixel # (0 based) LASTPIX = 196608 / Last pixel # (0 based) INDXSCHM= 'IMPLICIT' / Indexing: IMPLICIT or EXPLICIT OBJECT = '' / Sky coverage, either FULLSKY or PARTIAL SUN_RA = 145.4388068736396 / RA of Sun SUN_DEC = 13.81580722608961 / Dec of Sun GEO_RA = 302.5865596147055 / RA of Geocenter relative to Fermi GEO_DEC = 15.83524935450535 / Dec of Geocenter relative to Fermi GEO_RAD = 68.06432595564866 / Radius of the Earth N0_RA = 126.6207136297117 / RA pointing for detector n0 N0_DEC = 46.31351563469677 / Dec pointing for detector n0 N1_RA = 161.591861412769 / RA pointing for detector n1 N1_DEC = 43.47292774162471 / Dec pointing for detector n1 N2_RA = 217.1313722220443 / RA pointing for detector n2 N2_DEC = 28.50400343855578 / Dec pointing for detector n2 N3_RA = 117.1684556168945 / RA pointing for detector n3 N3_DEC = -2.070808735424205 / Dec pointing for detector n3 N4_RA = 120.1346877699851 / RA pointing for detector n4 N4_DEC = -48.21663119418335 / Dec pointing for detector n4 N5_RA = 178.7003018204643 / RA pointing for detector n5 N5_DEC = -12.17543716967924 / Dec pointing for detector n5 N6_RA = 78.26815044932692 / RA pointing for detector n6 N6_DEC = 29.36177711883978 / Dec pointing for detector n6 N7_RA = 57.49607808002435 / RA pointing for detector n7 N7_DEC = 12.31060734256382 / Dec pointing for detector n7 N8_RA = 35.47702942146842 / RA pointing for detector n8 N8_DEC = -27.38791101092771 / Dec pointing for detector n8 N9_RA = 30.68713973703088 / RA pointing for detector n9 N9_DEC = 70.65707127708534 / Dec pointing for detector n9 NA_RA = 300.6851221613044 / RA pointing for detector na NA_DEC = 47.39454241081924 / Dec pointing for detector na NB_RA = 358.8792400335054 / RA pointing for detector nb NB_DEC = 11.80997805235909 / Dec pointing for detector nb B0_RA = 176.573957720869 / RA pointing for detector b0 B0_DEC = -14.81975929502126 / Dec pointing for detector b0 B1_RA = 356.573957720869 / RA pointing for detector b1 B1_DEC = 14.81975929502127 / Dec pointing for detector b1 CHECKSUM= 'FCAAG921FA88F988' / HDU checksum updated 2025-08-16T01:15:47 DATASUM = '3821068423' / data unit checksum updated 2025-08-16T01:15:47 COMMENT SCPOS: [-3561538. 5571901. -1875661.] COMMENT QUAT: [-0.10561326 0.40774601 0.90346385 0.07963736] END /?? 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