////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 29 Aug 26 06:08:15 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 809676494 GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT TRIGGER_SIGNIF: 5.0 [sigma] TRIGGER_DUR: 0.512 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 10 DETECTORS: 0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 136.78,13.72 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 29 Aug 26 06:08:38 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 45 TRIGGER_NUM: 809676494 GRB_RA: 213.233d {+14h 12m 56s} (J2000), 213.638d {+14h 14m 33s} (current), 212.477d {+14h 09m 54s} (1950) GRB_DEC: -37.650d {-37d 38' 59"} (J2000), -37.774d {-37d 46' 25"} (current), -37.416d {-37d 24' 57"} (1950) GRB_ERROR: 15.02 [deg radius, statistical plus systematic] GRB_INTEN: 112 [cnts/sec] DATA_SIGNIF: 8.60 [sigma] INTEG_TIME: 2.048 [sec] GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT GRB_PHI: 240.00 [deg] GRB_THETA: 25.00 [deg] DATA_TIME_SCALE: 2.0480 [sec] HARD_RATIO: 0.53 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 95% GRB 2nd_MOST_LIKELY: 4% Generic Transient DETECTORS: 0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0, SUN_POSTN: 157.72d {+10h 30m 53s} +9.33d {+09d 19' 58"} SUN_DIST: 70.26 [deg] Sun_angle= -3.7 [hr] (East of Sun) MOON_POSTN: 349.14d {+23h 16m 34s} -2.91d {-02d 54' 23"} MOON_DIST: 122.14 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 320.29, 22.46 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 224.07,-22.82 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 136.78,13.72 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 29 Aug 26 06:08:56 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 58 TRIGGER_NUM: 809676494 GRB_RA: 239.500d {+15h 58m 00s} (J2000), 239.954d {+15h 59m 49s} (current), 238.652d {+15h 54m 36s} (1950) GRB_DEC: -41.100d {-41d 06' 00"} (J2000), -41.175d {-41d 10' 28"} (current), -40.957d {-40d 57' 24"} (1950) GRB_ERROR: 6.80 [deg radius, statistical only] DATA_SIGNIF: 11.60 [sigma] DATA_INTERVAL: 4.096 [sec] GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT GRB_PHI: 222.00 [deg] GRB_THETA: 43.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 157.72d {+10h 30m 53s} +9.33d {+09d 19' 58"} SUN_DIST: 90.37 [deg] Sun_angle= -5.5 [hr] (East of Sun) MOON_POSTN: 349.14d {+23h 16m 35s} -2.91d {-02d 54' 19"} MOON_DIST: 102.34 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 336.65, 9.25 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 245.95,-20.17 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_809676494.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 29 Aug 26 06:08:58 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 67 TRIGGER_NUM: 809676494 GRB_RA: 245.283d {+16h 21m 08s} (J2000), 245.714d {+16h 22m 51s} (current), 244.478d {+16h 17m 55s} (1950) GRB_DEC: -33.250d {-33d 15' 00"} (J2000), -33.312d {-33d 18' 41"} (current), -33.132d {-33d 07' 54"} (1950) GRB_ERROR: 10.28 [deg radius, statistical plus systematic] GRB_INTEN: 299 [cnts/sec] DATA_SIGNIF: 16.00 [sigma] INTEG_TIME: 1.024 [sec] GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT GRB_PHI: 229.00 [deg] GRB_THETA: 50.00 [deg] DATA_TIME_SCALE: 1.0240 [sec] HARD_RATIO: 0.66 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 95% GRB 2nd_MOST_LIKELY: 3% Generic Transient DETECTORS: 0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0, SUN_POSTN: 157.72d {+10h 30m 53s} +9.33d {+09d 19' 58"} SUN_DIST: 93.45 [deg] Sun_angle= -5.9 [hr] (East of Sun) MOON_POSTN: 349.14d {+23h 16m 35s} -2.91d {-02d 54' 18"} MOON_DIST: 99.56 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 345.54, 11.76 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 249.09,-11.59 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 136.78,13.72 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 29 Aug 26 06:09:07 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 72 TRIGGER_NUM: 809676494 GRB_RA: 229.450d {+15h 17m 48s} (J2000), 229.856d {+15h 19m 25s} (current), 228.690d {+15h 14m 46s} (1950) GRB_DEC: -29.650d {-29d 38' 59"} (J2000), -29.746d {-29d 44' 45"} (current), -29.468d {-29d 28' 02"} (1950) GRB_ERROR: 4.12 [deg radius, statistical plus systematic] GRB_INTEN: 1190 [cnts/sec] DATA_SIGNIF: 92.60 [sigma] INTEG_TIME: 2.048 [sec] GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT GRB_PHI: 243.00 [deg] GRB_THETA: 40.00 [deg] DATA_TIME_SCALE: 2.0480 [sec] HARD_RATIO: 0.48 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 95% GRB 2nd_MOST_LIKELY: 4% Generic Transient DETECTORS: 0,0,0, 0,0,0, 1,1,0, 0,0,0, 0,0, SUN_POSTN: 157.72d {+10h 30m 53s} +9.33d {+09d 19' 57"} SUN_DIST: 79.49 [deg] Sun_angle= -4.8 [hr] (East of Sun) MOON_POSTN: 349.15d {+23h 16m 35s} -2.90d {-02d 54' 16"} MOON_DIST: 113.52 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 337.27, 23.29 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 234.86,-11.02 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 136.78,13.72 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 29 Aug 26 06:09:52 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 0 TRIGGER_NUM: 809676494 GRB_RA: 235.460d {+15h 41m 50s} (J2000), 235.910d {+15h 43m 38s} (current), 234.618d {+15h 38m 28s} (1950) GRB_DEC: -41.490d {-41d 29' 23"} (J2000), -41.574d {-41d 34' 24"} (current), -41.330d {-41d 19' 49"} (1950) GRB_ERROR: 6.09 [deg radius, statistical only] DATA_SIGNIF: 12.50 [sigma] DATA_INTERVAL: 8.192 [sec] GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT GRB_PHI: 223.00 [deg] GRB_THETA: 40.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 157.72d {+10h 30m 53s} +9.33d {+09d 19' 57"} SUN_DIST: 87.51 [deg] Sun_angle= -5.2 [hr] (East of Sun) MOON_POSTN: 349.15d {+23h 16m 36s} -2.90d {-02d 54' 04"} MOON_DIST: 105.14 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 334.02, 10.87 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 242.89,-21.25 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_809676494.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 29 Aug 26 06:17:32 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 809676494 GRB_RA: 242.260d {+16h 09m 02s} (J2000), 242.693d {+16h 10m 46s} (current), 241.450d {+16h 05m 48s} (1950) GRB_DEC: -34.620d {-34d 37' 11"} (J2000), -34.689d {-34d 41' 18"} (current), -34.489d {-34d 29' 18"} (1950) GRB_ERROR: 1.00 [deg radius, statistical only] GRB_DATE: 21281 TJD; 241 DOY; 26/08/29 GRB_TIME: 22089.39 SOD {06:08:09.39} UT GRB_PHI: 229.00 [deg] GRB_THETA: 47.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 157.72d {+10h 30m 54s} +9.33d {+09d 19' 50"} SUN_DIST: 91.21 [deg] Sun_angle= -5.7 [hr] (East of Sun) MOON_POSTN: 349.21d {+23h 16m 51s} -2.87d {-02d 52' 06"} MOON_DIST: 101.83 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 342.74, 12.57 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 246.81,-13.39 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_lc_medres34_bn260829256.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260829256/quicklook/glg_locplot_all_bn260829256.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.