////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 10 Apr 26 07:03:58 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 797497441 GRB_DATE: 21140 TJD; 100 DOY; 26/04/10 GRB_TIME: 25437.00 SOD {07:03:57.00} UT TRIGGER_SIGNIF: 8.0 [sigma] TRIGGER_DUR: 0.016 [sec] E_RANGE: 4-7 [chan] 98-infinity [keV] ALGORITHM: 50 DETECTORS: 0,0,0, 1,0,0, 0,1,0, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260410294/quicklook/glg_lc_medres34_bn260410294.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 231.52,-17.15 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 10 Apr 26 07:04:00 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 48 TRIGGER_NUM: 797497441 GRB_RA: 101.067d {+06h 44m 16s} (J2000), 101.348d {+06h 45m 24s} (current), 100.531d {+06h 42m 07s} (1950) GRB_DEC: -20.933d {-20d 55' 59"} (J2000), -20.962d {-20d 57' 41"} (current), -20.881d {-20d 52' 51"} (1950) GRB_ERROR: 8.42 [deg radius, statistical plus systematic] GRB_INTEN: 751 [cnts/sec] DATA_SIGNIF: 17.40 [sigma] INTEG_TIME: 0.256 [sec] GRB_DATE: 21140 TJD; 100 DOY; 26/04/10 GRB_TIME: 25437.00 SOD {07:03:57.00} UT GRB_PHI: 288.00 [deg] GRB_THETA: 50.00 [deg] DATA_TIME_SCALE: 0.2560 [sec] HARD_RATIO: 0.31 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 96% GRB 2nd_MOST_LIKELY: 3% Generic Transient DETECTORS: 0,0,0, 1,0,0, 0,1,0, 0,0,0, 0,0, SUN_POSTN: 18.87d {+01h 15m 30s} +7.98d {+07d 58' 52"} SUN_DIST: 85.90 [deg] Sun_angle= -5.5 [hr] (East of Sun) MOON_POSTN: 293.67d {+19h 34m 42s} -25.48d {-25d 28' 45"} MOON_DIST: 132.04 [deg] MOON_ILLUM: 49 [%] GAL_COORDS: 231.01,-10.89 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 104.39,-43.82 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260410294/quicklook/glg_lc_medres34_bn260410294.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 231.52,-17.15 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 10 Apr 26 07:04:14 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 59 TRIGGER_NUM: 797497441 GRB_RA: 107.000d {+07h 08m 00s} (J2000), 107.268d {+07h 09m 04s} (current), 106.489d {+07h 05m 57s} (1950) GRB_DEC: -26.010d {-26d 00' 35"} (J2000), -26.053d {-26d 03' 10"} (current), -25.930d {-25d 55' 46"} (1950) GRB_ERROR: 3.30 [deg radius, statistical only] DATA_SIGNIF: 19.40 [sigma] DATA_INTERVAL: 0.256 [sec] GRB_DATE: 21140 TJD; 100 DOY; 26/04/10 GRB_TIME: 25437.00 SOD {07:03:57.00} UT GRB_PHI: 282.00 [deg] GRB_THETA: 44.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 18.87d {+01h 15m 30s} +7.98d {+07d 58' 53"} SUN_DIST: 92.07 [deg] Sun_angle= -5.9 [hr] (East of Sun) MOON_POSTN: 293.68d {+19h 34m 42s} -25.48d {-25d 28' 43"} MOON_DIST: 128.10 [deg] MOON_ILLUM: 49 [%] GAL_COORDS: 238.03, -8.18 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 113.17,-48.09 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260410294/quicklook/glg_lc_medres34_bn260410294.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_797497441.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: In the LAT Field-of-view. COMMENTS: Bright hard burst in the GBM. COMMENTS: This Notice was ground-generated -- not flight-generated. COMMENTS: The LC_URL file will not be created/available until ~15 min after the trigger. COMMENTS: The POS_MAP_URL file will not be created/available until ~1.5 min after the notice. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 10 Apr 26 07:13:15 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 797497441 GRB_RA: 108.330d {+07h 13m 19s} (J2000), 108.590d {+07h 14m 22s} (current), 107.835d {+07h 11m 20s} (1950) GRB_DEC: -28.850d {-28d 51' 00"} (J2000), -28.896d {-28d 53' 46"} (current), -28.764d {-28d 45' 48"} (1950) GRB_ERROR: 8.15 [deg radius, statistical only] GRB_DATE: 21140 TJD; 100 DOY; 26/04/10 GRB_TIME: 25437.00 SOD {07:03:57.00} UT GRB_PHI: 281.00 [deg] GRB_THETA: 41.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 18.88d {+01h 15m 31s} +7.98d {+07d 59' 01"} SUN_DIST: 93.60 [deg] Sun_angle= -6.0 [hr] (East of Sun) MOON_POSTN: 293.76d {+19h 35m 02s} -25.46d {-25d 27' 43"} MOON_DIST: 125.42 [deg] MOON_ILLUM: 49 [%] GAL_COORDS: 241.13, -8.38 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 115.76,-50.66 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260410294/quicklook/glg_lc_medres34_bn260410294.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260410294/quicklook/glg_locplot_all_bn260410294.png COMMENTS: Fermi-GBM Final Position. COMMENTS: This Notice was ground-generated -- not flight-generated. COMMENTS: The LC_URL file should be available by the time this FINAL notice is produced. COMMENTS: This notice was generated completely by automated pipeline processing. COMMENTS: In the LAT Field-of-view. COMMENTS: This is likely a Short GRB. COMMENTS: COMMENTS: NOTE: This GBM event is temporally(1.0<100sec) coincident with the CALET_GBM event (trignum=1459839839).