////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 26 Feb 25 22:30:28 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 762301828 GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT TRIGGER_SIGNIF: 5.1 [sigma] TRIGGER_DUR: 0.128 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 7 DETECTORS: 0,1,0, 0,0,1, 0,0,0, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 57.98,-22.82 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 26 Feb 25 22:30:52 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 44 TRIGGER_NUM: 762301828 GRB_RA: 274.317d {+18h 17m 16s} (J2000), 274.674d {+18h 18m 42s} (current), 273.607d {+18h 14m 26s} (1950) GRB_DEC: -14.067d {-14d 04' 00"} (J2000), -14.056d {-14d 03' 20"} (current), -14.086d {-14d 05' 08"} (1950) GRB_ERROR: 8.27 [deg radius, statistical plus systematic] GRB_INTEN: 556 [cnts/sec] DATA_SIGNIF: 14.60 [sigma] INTEG_TIME: 0.256 [sec] GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT GRB_PHI: 61.00 [deg] GRB_THETA: 65.00 [deg] DATA_TIME_SCALE: 0.2560 [sec] HARD_RATIO: 0.50 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 75% GRB 2nd_MOST_LIKELY: 19% Distant Particles DETECTORS: 0,1,0, 0,0,1, 0,0,0, 0,0,0, 0,0, SUN_POSTN: 340.20d {+22h 40m 49s} -8.35d {-08d 21' 02"} SUN_DIST: 64.35 [deg] Sun_angle= 4.4 [hr] (West of Sun) MOON_POSTN: 327.21d {+21h 48m 50s} -16.30d {-16d 18' 12"} MOON_DIST: 50.62 [deg] MOON_ILLUM: 2 [%] GAL_COORDS: 16.55, 1.00 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 274.24, 9.31 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 57.98,-22.82 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 26 Feb 25 22:31:01 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 59 TRIGGER_NUM: 762301828 GRB_RA: 279.683d {+18h 38m 44s} (J2000), 280.044d {+18h 40m 11s} (current), 278.965d {+18h 35m 52s} (1950) GRB_DEC: -15.700d {-15d 41' 59"} (J2000), -15.676d {-15d 40' 33"} (current), -15.745d {-15d 44' 41"} (1950) GRB_ERROR: 6.00 [deg radius, statistical plus systematic] GRB_INTEN: 413 [cnts/sec] DATA_SIGNIF: 30.20 [sigma] INTEG_TIME: 2.048 [sec] GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT GRB_PHI: 55.00 [deg] GRB_THETA: 65.00 [deg] DATA_TIME_SCALE: 2.0480 [sec] HARD_RATIO: 0.55 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 74% GRB 2nd_MOST_LIKELY: 19% Distant Particles DETECTORS: 0,1,0, 0,0,1, 0,0,0, 0,0,0, 0,0, SUN_POSTN: 340.20d {+22h 40m 49s} -8.35d {-08d 21' 02"} SUN_DIST: 59.12 [deg] Sun_angle= 4.0 [hr] (West of Sun) MOON_POSTN: 327.21d {+21h 48m 50s} -16.30d {-16d 18' 10"} MOON_DIST: 45.24 [deg] MOON_ILLUM: 2 [%] GAL_COORDS: 17.51, -4.35 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 279.40, 7.42 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 57.98,-22.82 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 26 Feb 25 22:31:10 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 58 TRIGGER_NUM: 762301828 GRB_RA: 284.970d {+18h 59m 53s} (J2000), 285.321d {+19h 01m 17s} (current), 284.271d {+18h 57m 05s} (1950) GRB_DEC: -12.180d {-12d 10' 47"} (J2000), -12.143d {-12d 08' 35"} (current), -12.250d {-12d 15' 00"} (1950) GRB_ERROR: 3.07 [deg radius, statistical only] DATA_SIGNIF: 32.00 [sigma] DATA_INTERVAL: 2.048 [sec] GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT GRB_PHI: 51.00 [deg] GRB_THETA: 70.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 340.21d {+22h 40m 49s} -8.35d {-08d 21' 02"} SUN_DIST: 54.06 [deg] Sun_angle= 3.7 [hr] (West of Sun) MOON_POSTN: 327.21d {+21h 48m 51s} -16.30d {-16d 18' 08"} MOON_DIST: 40.75 [deg] MOON_ILLUM: 2 [%] GAL_COORDS: 22.98, -7.37 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 284.88, 10.49 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_762301828.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. 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: Wed 26 Feb 25 22:31:41 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 0 TRIGGER_NUM: 762301828 GRB_RA: 285.290d {+19h 01m 10s} (J2000), 285.639d {+19h 02m 33s} (current), 284.596d {+18h 58m 23s} (1950) GRB_DEC: -11.280d {-11d 16' 47"} (J2000), -11.243d {-11d 14' 33"} (current), -11.352d {-11d 21' 05"} (1950) GRB_ERROR: 2.44 [deg radius, statistical only] DATA_SIGNIF: 31.60 [sigma] DATA_INTERVAL: 3.072 [sec] GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT GRB_PHI: 51.00 [deg] GRB_THETA: 71.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 340.21d {+22h 40m 49s} -8.35d {-08d 21' 01"} SUN_DIST: 53.78 [deg] Sun_angle= 3.6 [hr] (West of Sun) MOON_POSTN: 327.22d {+21h 48m 52s} -16.30d {-16d 18' 00"} MOON_DIST: 40.63 [deg] MOON_ILLUM: 2 [%] GAL_COORDS: 23.94, -7.25 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 285.29, 11.35 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_762301828.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: Bright hard burst in the GBM. 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: Wed 26 Feb 25 22:32:11 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 2 TRIGGER_NUM: 762301828 GRB_RA: 284.430d {+18h 57m 43s} (J2000), 284.778d {+18h 59m 07s} (current), 283.738d {+18h 54m 57s} (1950) GRB_DEC: -10.760d {-10d 45' 35"} (J2000), -10.725d {-10d 43' 28"} (current), -10.828d {-10d 49' 39"} (1950) GRB_ERROR: 1.79 [deg radius, statistical only] DATA_SIGNIF: 38.90 [sigma] DATA_INTERVAL: 14.336 [sec] GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT GRB_PHI: 52.00 [deg] GRB_THETA: 71.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 340.21d {+22h 40m 49s} -8.35d {-08d 21' 01"} SUN_DIST: 54.64 [deg] Sun_angle= 3.7 [hr] (West of Sun) MOON_POSTN: 327.22d {+21h 48m 53s} -16.30d {-16d 17' 53"} MOON_DIST: 41.57 [deg] MOON_ILLUM: 2 [%] GAL_COORDS: 24.03, -6.26 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 284.49, 11.96 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_762301828.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: Bright hard burst in the GBM. 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: Wed 26 Feb 25 22:39:40 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 762301828 GRB_RA: 284.420d {+18h 57m 41s} (J2000), 284.768d {+18h 59m 04s} (current), 283.728d {+18h 54m 55s} (1950) GRB_DEC: -10.820d {-10d 49' 11"} (J2000), -10.785d {-10d 47' 04"} (current), -10.888d {-10d 53' 15"} (1950) GRB_ERROR: 1.87 [deg radius, statistical only] GRB_DATE: 20732 TJD; 57 DOY; 25/02/26 GRB_TIME: 81023.12 SOD {22:30:23.12} UT GRB_PHI: 52.00 [deg] GRB_THETA: 71.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 340.21d {+22h 40m 51s} -8.35d {-08d 20' 54"} SUN_DIST: 54.66 [deg] Sun_angle= 3.7 [hr] (West of Sun) MOON_POSTN: 327.29d {+21h 49m 10s} -16.27d {-16d 16' 04"} MOON_DIST: 41.63 [deg] MOON_ILLUM: 2 [%] GAL_COORDS: 23.97, -6.28 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 284.48, 11.90 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_lc_medres34_bn250226938.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250226938/quicklook/glg_locplot_all_bn250226938.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: Bright hard burst in the GBM. COMMENTS: This is likely a Long GRB.