////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 26 Sep 26 23:27:13 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 812158037 GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 84432.17 SOD {23:27:12.17} UT TRIGGER_SIGNIF: 4.3 [sigma] TRIGGER_DUR: 0.512 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 10 DETECTORS: 0,0,0, 0,0,0, 0,1,1, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_lc_medres34_bn260926977.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 276.08,21.73 [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 23:27:15 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 49 TRIGGER_NUM: 812158037 GRB_RA: 316.183d {+21h 04m 44s} (J2000), 316.501d {+21h 06m 00s} (current), 315.588d {+21h 02m 21s} (1950) GRB_DEC: +13.350d {+13d 20' 60"} (J2000), +13.458d {+13d 27' 28"} (current), +13.150d {+13d 09' 00"} (1950) GRB_ERROR: 20.97 [deg radius, statistical plus systematic] GRB_INTEN: 193 [cnts/sec] DATA_SIGNIF: 9.40 [sigma] INTEG_TIME: 1.024 [sec] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 84432.17 SOD {23:27:12.17} UT GRB_PHI: 223.00 [deg] GRB_THETA: 50.00 [deg] DATA_TIME_SCALE: 1.0240 [sec] HARD_RATIO: 0.43 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 78% GRB 2nd_MOST_LIKELY: 9% Cyg X-1 DETECTORS: 0,0,0, 0,0,0, 0,1,1, 0,0,0, 0,0, SUN_POSTN: 183.57d {+12h 14m 16s} -1.54d {-01d 32' 37"} SUN_DIST: 131.95 [deg] Sun_angle= -8.9 [hr] (East of Sun) MOON_POSTN: 5.53d {+00h 22m 07s} +5.76d {+05d 45' 42"} MOON_DIST: 48.86 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 61.86,-21.74 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 323.15, 28.67 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_lc_medres34_bn260926977.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 276.08,21.73 [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 23:27:23 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 60 TRIGGER_NUM: 812158037 GRB_RA: 312.283d {+20h 49m 08s} (J2000), 312.594d {+20h 50m 23s} (current), 311.701d {+20h 46m 48s} (1950) GRB_DEC: +15.933d {+15d 55' 60"} (J2000), +16.034d {+16d 02' 01"} (current), +15.747d {+15d 44' 49"} (1950) GRB_ERROR: 12.20 [deg radius, statistical plus systematic] GRB_INTEN: 141 [cnts/sec] DATA_SIGNIF: 13.50 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 84432.17 SOD {23:27:12.17} UT GRB_PHI: 229.00 [deg] GRB_THETA: 50.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.37 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 76% GRB 2nd_MOST_LIKELY: 20% Cyg X-1 DETECTORS: 0,0,0, 0,0,0, 0,1,1, 0,0,0, 0,0, SUN_POSTN: 183.57d {+12h 14m 16s} -1.54d {-01d 32' 37"} SUN_DIST: 127.77 [deg] Sun_angle= -8.6 [hr] (East of Sun) MOON_POSTN: 5.53d {+00h 22m 07s} +5.76d {+05d 45' 44"} MOON_DIST: 52.84 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 61.69,-17.17 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 319.97, 32.33 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_lc_medres34_bn260926977.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 276.08,21.73 [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 23:27:30 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 59 TRIGGER_NUM: 812158037 GRB_RA: 322.670d {+21h 30m 41s} (J2000), 322.984d {+21h 31m 56s} (current), 322.082d {+21h 28m 20s} (1950) GRB_DEC: +17.420d {+17d 25' 12"} (J2000), +17.539d {+17d 32' 19"} (current), +17.199d {+17d 11' 58"} (1950) GRB_ERROR: 6.73 [deg radius, statistical only] DATA_SIGNIF: 16.30 [sigma] DATA_INTERVAL: 4.096 [sec] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 84432.17 SOD {23:27:12.17} UT GRB_PHI: 220.00 [deg] GRB_THETA: 57.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 183.57d {+12h 14m 16s} -1.54d {-01d 32' 37"} SUN_DIST: 137.06 [deg] Sun_angle= -9.3 [hr] (East of Sun) MOON_POSTN: 5.53d {+00h 22m 07s} +5.76d {+05d 45' 46"} MOON_DIST: 43.18 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 69.57,-24.03 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 331.51, 30.32 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_lc_medres34_bn260926977.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_812158037.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: In the LAT Field-of-view. 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 23:28:38 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 1 TRIGGER_NUM: 812158037 GRB_RA: 313.850d {+20h 55m 24s} (J2000), 314.173d {+20h 56m 42s} (current), 313.245d {+20h 52m 59s} (1950) GRB_DEC: +10.150d {+10d 09' 00"} (J2000), +10.253d {+10d 15' 12"} (current), +9.958d {+09d 57' 29"} (1950) GRB_ERROR: 5.70 [deg radius, statistical only] DATA_SIGNIF: 16.00 [sigma] DATA_INTERVAL: 8.192 [sec] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 84432.17 SOD {23:27:12.17} UT GRB_PHI: 223.00 [deg] GRB_THETA: 46.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 183.57d {+12h 14m 16s} -1.54d {-01d 32' 38"} SUN_DIST: 130.17 [deg] Sun_angle= -8.7 [hr] (East of Sun) MOON_POSTN: 5.54d {+00h 22m 09s} +5.77d {+05d 46' 04"} MOON_DIST: 51.01 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 57.62,-21.76 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 319.56, 26.36 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_lc_medres34_bn260926977.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_812158037.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: In the LAT Field-of-view. COMMENTS: This is likely a Long GRB. 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 23:36:31 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 812158037 GRB_RA: 313.800d {+20h 55m 12s} (J2000), 314.123d {+20h 56m 30s} (current), 313.195d {+20h 52m 47s} (1950) GRB_DEC: +10.130d {+10d 07' 48"} (J2000), +10.233d {+10d 13' 60"} (current), +9.938d {+09d 56' 18"} (1950) GRB_ERROR: 5.26 [deg radius, statistical only] GRB_DATE: 21309 TJD; 269 DOY; 26/09/26 GRB_TIME: 84432.17 SOD {23:27:12.17} UT GRB_PHI: 223.00 [deg] GRB_THETA: 46.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 183.57d {+12h 14m 17s} -1.55d {-01d 32' 46"} SUN_DIST: 130.12 [deg] Sun_angle= -8.7 [hr] (East of Sun) MOON_POSTN: 5.61d {+00h 22m 25s} +5.80d {+05d 48' 08"} MOON_DIST: 51.12 [deg] MOON_ILLUM: 100 [%] GAL_COORDS: 57.57,-21.73 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 319.50, 26.36 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_lc_medres34_bn260926977.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260926977/quicklook/glg_locplot_all_bn260926977.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 Long GRB.