////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 02:38:13 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 798431892 GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 9487.55 SOD {02:38:07.55} UT TRIGGER_SIGNIF: 4.7 [sigma] TRIGGER_DUR: 4.096 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 16 DETECTORS: 0,0,0, 0,0,1, 0,0,1, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421110/quicklook/glg_lc_medres34_bn260421110.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 265.40,-25.38 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 02:38:26 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 45 TRIGGER_NUM: 798431892 GRB_RA: 353.250d {+23h 33m 00s} (J2000), 353.598d {+23h 34m 24s} (current), 352.586d {+23h 30m 21s} (1950) GRB_DEC: -34.100d {-34d 06' 00"} (J2000), -33.955d {-33d 57' 15"} (current), -34.376d {-34d 22' 34"} (1950) GRB_ERROR: 28.58 [deg radius, statistical plus systematic] GRB_INTEN: 38 [cnts/sec] DATA_SIGNIF: 4.50 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 9487.55 SOD {02:38:07.55} UT GRB_PHI: 60.00 [deg] GRB_THETA: 160.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Unreliable location 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,0,0, 0,0,1, 0,0,1, 0,0,0, 0,0, SUN_POSTN: 28.89d {+01h 55m 33s} +11.83d {+11d 49' 40"} SUN_DIST: 56.76 [deg] Sun_angle= 2.4 [hr] (West of Sun) MOON_POSTN: 80.06d {+05h 20m 15s} +28.13d {+28d 07' 32"} MOON_DIST: 102.60 [deg] MOON_ILLUM: 18 [%] GAL_COORDS: 5.66,-71.78 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 339.20,-28.40 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421110/quicklook/glg_lc_medres34_bn260421110.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.40,-25.38 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 02:38:38 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 66 TRIGGER_NUM: 798431892 GRB_RA: 321.050d {+21h 24m 12s} (J2000), 321.451d {+21h 25m 48s} (current), 320.285d {+21h 21m 08s} (1950) GRB_DEC: -35.100d {-35d 06' 00"} (J2000), -34.986d {-34d 59' 08"} (current), -35.315d {-35d 18' 54"} (1950) GRB_ERROR: 10.82 [deg radius, statistical plus systematic] GRB_INTEN: 128 [cnts/sec] DATA_SIGNIF: 7.20 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 9487.55 SOD {02:38:07.55} UT GRB_PHI: 160.00 [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: 0,0,0, 0,0,1, 0,0,1, 0,0,0, 0,0, SUN_POSTN: 28.89d {+01h 55m 33s} +11.83d {+11d 49' 40"} SUN_DIST: 79.04 [deg] Sun_angle= 4.5 [hr] (West of Sun) MOON_POSTN: 80.06d {+05h 20m 15s} +28.13d {+28d 07' 33"} MOON_DIST: 128.05 [deg] MOON_ILLUM: 18 [%] GAL_COORDS: 9.32,-45.43 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 312.24,-18.84 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421110/quicklook/glg_lc_medres34_bn260421110.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.40,-25.38 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 02:38:47 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 70 TRIGGER_NUM: 798431892 GRB_RA: 346.167d {+23h 04m 40s} (J2000), 346.535d {+23h 06m 08s} (current), 345.465d {+23h 01m 52s} (1950) GRB_DEC: -41.850d {-41d 51' 00"} (J2000), -41.708d {-41d 42' 27"} (current), -42.120d {-42d 07' 11"} (1950) GRB_ERROR: 10.23 [deg radius, statistical plus systematic] GRB_INTEN: 159 [cnts/sec] DATA_SIGNIF: 10.50 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 9487.55 SOD {02:38:07.55} UT GRB_PHI: 90.00 [deg] GRB_THETA: 160.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Unreliable location 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,0,0, 0,0,1, 0,0,1, 0,0,0, 0,0, SUN_POSTN: 28.89d {+01h 55m 33s} +11.83d {+11d 49' 40"} SUN_DIST: 66.20 [deg] Sun_angle= 2.8 [hr] (West of Sun) MOON_POSTN: 80.07d {+05h 20m 16s} +28.13d {+28d 07' 33"} MOON_DIST: 110.74 [deg] MOON_ILLUM: 18 [%] GAL_COORDS: 351.99,-63.70 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 329.34,-32.77 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421110/quicklook/glg_lc_medres34_bn260421110.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.40,-25.38 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 02:39:02 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 92 TRIGGER_NUM: 798431892 GRB_RA: 328.133d {+21h 52m 32s} (J2000), 328.520d {+21h 54m 05s} (current), 327.396d {+21h 49m 35s} (1950) GRB_DEC: -32.983d {-32d 58' 59"} (J2000), -32.859d {-32d 51' 30"} (current), -33.219d {-33d 13' 07"} (1950) GRB_ERROR: 5.80 [deg radius, statistical plus systematic] GRB_INTEN: 470 [cnts/sec] DATA_SIGNIF: 15.60 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 9487.55 SOD {02:38:07.55} UT GRB_PHI: 150.00 [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% Unreliable location 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,0,0, 0,0,1, 0,0,1, 0,0,0, 0,0, SUN_POSTN: 28.89d {+01h 55m 33s} +11.83d {+11d 49' 40"} SUN_DIST: 72.83 [deg] Sun_angle= 4.0 [hr] (West of Sun) MOON_POSTN: 80.07d {+05h 20m 17s} +28.13d {+28d 07' 33"} MOON_DIST: 121.86 [deg] MOON_ILLUM: 18 [%] GAL_COORDS: 13.11,-51.14 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 318.84,-18.86 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421110/quicklook/glg_lc_medres34_bn260421110.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.40,-25.38 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 02:39:16 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 96 TRIGGER_NUM: 798431892 GRB_RA: 347.667d {+23h 10m 40s} (J2000), 348.031d {+23h 12m 07s} (current), 346.971d {+23h 07m 53s} (1950) GRB_DEC: -41.750d {-41d 45' 00"} (J2000), -41.607d {-41d 36' 24"} (current), -42.022d {-42d 01' 17"} (1950) GRB_ERROR: 6.77 [deg radius, statistical plus systematic] GRB_INTEN: 351 [cnts/sec] DATA_SIGNIF: 23.60 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 9487.55 SOD {02:38:07.55} UT GRB_PHI: 90.00 [deg] GRB_THETA: 160.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Unreliable location 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,0,0, 0,0,1, 0,0,1, 0,0,0, 0,0, SUN_POSTN: 28.89d {+01h 55m 33s} +11.83d {+11d 49' 40"} SUN_DIST: 65.33 [deg] Sun_angle= 2.7 [hr] (West of Sun) MOON_POSTN: 80.07d {+05h 20m 17s} +28.13d {+28d 07' 34"} MOON_DIST: 109.66 [deg] MOON_ILLUM: 18 [%] GAL_COORDS: 351.05,-64.75 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 330.58,-33.20 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421110/quicklook/glg_lc_medres34_bn260421110.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 265.40,-25.38 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.