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 = '2023-11-12T00:07:20' / file creation date (YYYY-MM-DDThh:mm:ss UT) DATE-OBS= '2023-11-11T21:35:11' / Date of start of observation DATE-END= '2023-11-11T21:35:11' / 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 = 721431316.383999 / [GLAST MET] Observation start time TSTOP = 721431316.447999 / [GLAST MET] Observation stop time FILENAME= 'healpix.721431316.fit' / Name of this file TRIGTIME= 721431316.383999 / 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 = 232.14 / Calculated RA of burst DEC_OBJ = -52.45 / Calculated Dec of burst ERR_RAD = 8.529999999999999 / 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= '8aH1AX902aG08W90' / HDU checksum updated 2023-11-11T18:07:20 DATASUM = '0 ' / data unit checksum updated 2023-11-11T18:07:20 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 = 226.4418240966951 / RA of Sun SUN_DEC = -17.4392187263188 / Dec of Sun GEO_RA = 146.9845997376571 / RA of Geocenter relative to Fermi GEO_DEC = -22.58365255948063 / Dec of Geocenter relative to Fermi GEO_RAD = 67.7237399882714 / Radius of the Earth N0_RA = 328.0487306078826 / RA pointing for detector n0 N0_DEC = -45.52892330447762 / Dec pointing for detector n0 N1_RA = 301.5621997651924 / RA pointing for detector n1 N1_DEC = -65.72934164270656 / Dec pointing for detector n1 N2_RA = 171.7372440304823 / RA pointing for detector n2 N2_DEC = -62.68695999195521 / Dec pointing for detector n2 N3_RA = 295.405660529994 / RA pointing for detector n3 N3_DEC = -5.428479448797995 / Dec pointing for detector n3 N4_RA = 262.5970380060109 / RA pointing for detector n4 N4_DEC = 28.29112382778052 / Dec pointing for detector n4 N5_RA = 234.156644967498 / RA pointing for detector n5 N5_DEC = -25.33907347197617 / Dec pointing for detector n5 N6_RA = 344.3809670019325 / RA pointing for detector n6 N6_DEC = -7.034486250201758 / Dec pointing for detector n6 N7_RA = 352.6861201789018 / RA pointing for detector n7 N7_DEC = 17.37323464882774 / Dec pointing for detector n7 N8_RA = 355.6782687217608 / RA pointing for detector n8 N8_DEC = 62.40270172471229 / Dec pointing for detector n8 N9_RA = 29.72065554582896 / RA pointing for detector n9 N9_DEC = -31.81311495255175 / Dec pointing for detector n9 NA_RA = 82.94136547498722 / RA pointing for detector na NA_DEC = -27.44268967266649 / Dec pointing for detector na NB_RA = 54.05104707272207 / RA pointing for detector nb NB_DEC = 25.73292369845466 / Dec pointing for detector nb B0_RA = 235.7319543945669 / RA pointing for detector b0 B0_DEC = -22.30747167493156 / Dec pointing for detector b0 B1_RA = 55.73195439456696 / RA pointing for detector b1 B1_DEC = 22.30747167493156 / Dec pointing for detector b1 CHECKSUM= 'V6egW3ZdV3ddV3Zd' / HDU checksum updated 2023-11-11T18:07:20 DATASUM = '3723357229' / data unit checksum updated 2023-11-11T18:07:20 COMMENT SCPOS: [ 5333494. -3465650. 2645522.] COMMENT QUAT: [ 0.30732876 -0.79226521 0.36438801 -0.38090189] END m 8 4 e [ / [g ? s @ p - W W'K[o#cSOOS+3;/3#'+/'###/# * g 3co?7#'O+?C/#7[ssKWCW#O/oO?#OO?oo??77#///+7o_;+#;C_W3K;SOWG?WWKGG7+SKO3+3W;??G33;//SSKKK/7O7;#7?C#+//''##/3+o;3o'#O_/?o__?/O/w['?o++/3';77/'#/'++oo_oooo_? 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