////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 26 Sep 26 18:55:55 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 812141754 GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 68149.92 SOD {18:55:49.92} UT TRIGGER_SIGNIF: 6.4 [sigma] TRIGGER_DUR: 0.064 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 4 DETECTORS: 0,1,0, 1,0,1, 0,0,0, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926789/quicklook/glg_lc_medres34_bn260926789.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 33.05,24.77 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 26 Sep 26 18:56:19 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 47 TRIGGER_NUM: 812141754 GRB_RA: 189.050d {+12h 36m 12s} (J2000), 189.373d {+12h 37m 30s} (current), 188.445d {+12h 33m 47s} (1950) GRB_DEC: +39.550d {+39d 32' 60"} (J2000), +39.403d {+39d 24' 11"} (current), +39.825d {+39d 49' 31"} (1950) GRB_ERROR: 21.92 [deg radius, statistical plus systematic] GRB_INTEN: 567 [cnts/sec] DATA_SIGNIF: 6.40 [sigma] INTEG_TIME: 0.064 [sec] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 68149.92 SOD {18:55:49.92} UT GRB_PHI: 0.00 [deg] GRB_THETA: 65.00 [deg] DATA_TIME_SCALE: 0.0640 [sec] HARD_RATIO: 0.60 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 94% GRB 2nd_MOST_LIKELY: 4% Generic Transient DETECTORS: 0,1,0, 1,0,1, 0,0,0, 0,0,0, 0,0, SUN_POSTN: 183.40d {+12h 13m 35s} -1.47d {-01d 28' 13"} SUN_DIST: 41.24 [deg] Sun_angle= -0.4 [hr] (East of Sun) MOON_POSTN: 3.25d {+00h 13m 00s} +4.58d {+04d 34' 30"} MOON_DIST: 135.66 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 136.28, 77.18 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 169.44, 39.23 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926789/quicklook/glg_lc_medres34_bn260926789.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 33.05,24.77 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 26 Sep 26 18:56:37 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 60 TRIGGER_NUM: 812141754 GRB_RA: 192.490d {+12h 49m 58s} (J2000), 192.811d {+12h 51m 15s} (current), 191.888d {+12h 47m 33s} (1950) GRB_DEC: +33.060d {+33d 03' 36"} (J2000), +32.915d {+32d 54' 53"} (current), +33.332d {+33d 19' 56"} (1950) GRB_ERROR: 13.76 [deg radius, statistical only] DATA_SIGNIF: 8.50 [sigma] DATA_INTERVAL: 0.064 [sec] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 68149.92 SOD {18:55:49.92} UT GRB_PHI: 4.00 [deg] GRB_THETA: 71.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 183.40d {+12h 13m 35s} -1.47d {-01d 28' 13"} SUN_DIST: 35.52 [deg] Sun_angle= -0.6 [hr] (East of Sun) MOON_POSTN: 3.25d {+00h 13m 00s} +4.58d {+04d 34' 35"} MOON_DIST: 141.43 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 125.92, 84.06 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 176.45, 34.93 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926789/quicklook/glg_lc_medres34_bn260926789.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_812141754.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. 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: Sat 26 Sep 26 19:05:09 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 812141754 GRB_RA: 184.250d {+12h 17m 00s} (J2000), 184.592d {+12h 18m 22s} (current), 183.611d {+12h 14m 27s} (1950) GRB_DEC: +4.790d {+04d 47' 24"} (J2000), +4.642d {+04d 38' 30"} (current), +5.068d {+05d 04' 04"} (1950) GRB_ERROR: 11.58 [deg radius, statistical only] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 68149.92 SOD {18:55:49.92} UT GRB_PHI: 0.00 [deg] GRB_THETA: 100.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 183.40d {+12h 13m 36s} -1.47d {-01d 28' 22"} SUN_DIST: 6.23 [deg] Sun_angle= -0.1 [hr] (East of Sun) MOON_POSTN: 3.32d {+00h 13m 17s} +4.61d {+04d 36' 50"} MOON_DIST: 170.66 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 281.24, 66.20 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 181.99, 6.08 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926789/quicklook/glg_lc_medres34_bn260926789.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926789/quicklook/glg_locplot_all_bn260926789.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: This is likely a Short GRB.