////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 18 Feb 26 09:41:53 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 793100517 GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT TRIGGER_SIGNIF: 4.7 [sigma] TRIGGER_DUR: 4.096 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 17 DETECTORS: 0,1,0, 0,0,0, 0,0,0, 0,1,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 265.57,-24.18 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 18 Feb 26 09:41:55 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 45 TRIGGER_NUM: 793100517 GRB_RA: 179.467d {+11h 57m 52s} (J2000), 179.806d {+11h 59m 13s} (current), 178.805d {+11h 55m 13s} (1950) GRB_DEC: +78.483d {+78d 28' 60"} (J2000), +78.338d {+78d 20' 16"} (current), +78.762d {+78d 45' 42"} (1950) GRB_ERROR: 15.55 [deg radius, statistical plus systematic] GRB_INTEN: 128 [cnts/sec] DATA_SIGNIF: 4.60 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT GRB_PHI: 165.00 [deg] GRB_THETA: 160.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 1.77 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 83% GRB 2nd_MOST_LIKELY: 13% Generic SGR DETECTORS: 0,1,0, 0,0,0, 0,0,0, 0,1,0, 0,0, SUN_POSTN: 331.84d {+22h 07m 23s} -11.56d {-11d 33' 35"} SUN_DIST: 111.79 [deg] Sun_angle= 10.1 [hr] (West of Sun) MOON_POSTN: 342.29d {+22h 49m 10s} -7.42d {-07d 25' 19"} MOON_DIST: 108.52 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 126.31, 38.29 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 117.02, 63.93 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.57,-24.18 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 18 Feb 26 09:42:10 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 58 TRIGGER_NUM: 793100517 GRB_RA: 178.430d {+11h 53m 43s} (J2000), 178.777d {+11h 55m 06s} (current), 177.758d {+11h 51m 02s} (1950) GRB_DEC: +73.440d {+73d 26' 24"} (J2000), +73.295d {+73d 17' 40"} (current), +73.718d {+73d 43' 06"} (1950) GRB_ERROR: 6.05 [deg radius, statistical only] DATA_SIGNIF: 5.00 [sigma] DATA_INTERVAL: 4.096 [sec] GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT GRB_PHI: 163.00 [deg] GRB_THETA: 155.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 331.84d {+22h 07m 23s} -11.56d {-11d 33' 34"} SUN_DIST: 116.30 [deg] Sun_angle= 10.2 [hr] (West of Sun) MOON_POSTN: 342.29d {+22h 49m 10s} -7.42d {-07d 25' 15"} MOON_DIST: 113.39 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 128.51, 43.06 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 126.26, 61.20 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_793100517.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: Wed 18 Feb 26 09:42:11 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 68 TRIGGER_NUM: 793100517 GRB_RA: 108.067d {+07h 12m 16s} (J2000), 109.456d {+07h 17m 50s} (current), 105.367d {+07h 01m 28s} (1950) GRB_DEC: +82.583d {+82d 34' 60"} (J2000), +82.536d {+82d 32' 11"} (current), +82.663d {+82d 39' 48"} (1950) GRB_ERROR: 9.87 [deg radius, statistical plus systematic] GRB_INTEN: 118 [cnts/sec] DATA_SIGNIF: 6.80 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT GRB_PHI: 200.00 [deg] GRB_THETA: 165.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Below horizon 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,1,0, 0,0,0, 0,0,0, 0,1,0, 0,0, SUN_POSTN: 331.84d {+22h 07m 23s} -11.56d {-11d 33' 34"} SUN_DIST: 107.02 [deg] Sun_angle= -9.2 [hr] (East of Sun) MOON_POSTN: 342.29d {+22h 49m 11s} -7.42d {-07d 25' 14"} MOON_DIST: 101.88 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 131.27, 27.55 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 94.51, 59.43 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.57,-24.18 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 18 Feb 26 09:42:23 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 73 TRIGGER_NUM: 793100517 GRB_RA: 64.350d {+04h 17m 24s} (J2000), 66.122d {+04h 24m 29s} (current), 61.067d {+04h 04m 16s} (1950) GRB_DEC: +84.717d {+84d 43' 00"} (J2000), +84.778d {+84d 46' 40"} (current), +84.589d {+84d 35' 20"} (1950) GRB_ERROR: 50.00 [deg radius, statistical plus systematic] GRB_INTEN: 0 [cnts/sec] DATA_SIGNIF: 9.90 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT GRB_PHI: 210.00 [deg] GRB_THETA: 170.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Below horizon 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,1,0, 0,0,0, 0,0,0, 0,1,0, 0,0, SUN_POSTN: 331.84d {+22h 07m 23s} -11.56d {-11d 33' 34"} SUN_DIST: 101.90 [deg] Sun_angle= -6.3 [hr] (East of Sun) MOON_POSTN: 342.30d {+22h 49m 11s} -7.42d {-07d 25' 11"} MOON_DIST: 96.83 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 127.45, 23.77 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 85.18, 61.71 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.57,-24.18 [deg]. COMMENTS: WARNING: This Notice was received with a negative intensity field -- INTEN was set to 0. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 18 Feb 26 09:42:36 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 94 TRIGGER_NUM: 793100517 GRB_RA: 80.967d {+05h 23m 52s} (J2000), 82.063d {+05h 28m 15s} (current), 78.881d {+05h 15m 31s} (1950) GRB_DEC: +79.283d {+79d 16' 60"} (J2000), +79.305d {+79d 18' 17"} (current), +79.235d {+79d 14' 04"} (1950) GRB_ERROR: 6.75 [deg radius, statistical plus systematic] GRB_INTEN: 229 [cnts/sec] DATA_SIGNIF: 15.90 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT GRB_PHI: 220.00 [deg] GRB_THETA: 165.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Below horizon 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,1,0, 0,0,0, 0,0,0, 0,1,0, 0,0, SUN_POSTN: 331.84d {+22h 07m 23s} -11.56d {-11d 33' 34"} SUN_DIST: 105.05 [deg] Sun_angle= -7.3 [hr] (East of Sun) MOON_POSTN: 342.30d {+22h 49m 11s} -7.42d {-07d 25' 08"} MOON_DIST: 99.10 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 133.71, 22.73 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 87.01, 55.94 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.57,-24.18 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 18 Feb 26 09:42:52 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 97 TRIGGER_NUM: 793100517 GRB_RA: 71.417d {+04h 45m 40s} (J2000), 73.101d {+04h 52m 24s} (current), 68.261d {+04h 33m 03s} (1950) GRB_DEC: +84.117d {+84d 07' 00"} (J2000), +84.161d {+84d 09' 40"} (current), +84.021d {+84d 01' 14"} (1950) GRB_ERROR: 50.00 [deg radius, statistical plus systematic] GRB_INTEN: 0 [cnts/sec] DATA_SIGNIF: 22.70 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21089 TJD; 49 DOY; 26/02/18 GRB_TIME: 34912.31 SOD {09:41:52.31} UT GRB_PHI: 210.00 [deg] GRB_THETA: 170.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Below horizon 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,1,0, 0,0,0, 0,0,0, 0,1,0, 0,0, SUN_POSTN: 331.84d {+22h 07m 23s} -11.56d {-11d 33' 34"} SUN_DIST: 102.64 [deg] Sun_angle= -6.8 [hr] (East of Sun) MOON_POSTN: 342.30d {+22h 49m 12s} -7.42d {-07d 25' 04"} MOON_DIST: 97.46 [deg] MOON_ILLUM: 1 [%] GAL_COORDS: 128.42, 23.95 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 86.15, 60.93 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260218404/quicklook/glg_lc_medres34_bn260218404.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.57,-24.18 [deg]. COMMENTS: WARNING: This Notice was received with a negative intensity field -- INTEN was set to 0. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.