////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 21 Apr 26 04:13:26 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 798437606 GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT TRIGGER_SIGNIF: 4.5 [sigma] TRIGGER_DUR: 0.256 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 9 DETECTORS: 0,0,0, 0,0,0, 1,1,1, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 244.97,-25.23 [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 04:13:50 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 44 TRIGGER_NUM: 798437606 GRB_RA: 192.517d {+12h 50m 04s} (J2000), 192.863d {+12h 51m 27s} (current), 191.859d {+12h 47m 26s} (1950) GRB_DEC: -16.333d {-16d 19' 59"} (J2000), -16.476d {-16d 28' 33"} (current), -16.061d {-16d 03' 39"} (1950) GRB_ERROR: 18.33 [deg radius, statistical plus systematic] GRB_INTEN: 116 [cnts/sec] DATA_SIGNIF: 7.90 [sigma] INTEG_TIME: 2.048 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 197.00 [deg] GRB_THETA: 60.00 [deg] DATA_TIME_SCALE: 2.0480 [sec] HARD_RATIO: 1.46 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 98% GRB 2nd_MOST_LIKELY: 1% Generic SGR DETECTORS: 0,0,0, 0,0,0, 1,1,1, 0,0,0, 0,0, SUN_POSTN: 28.95d {+01h 55m 48s} +11.85d {+11d 51' 01"} SUN_DIST: 163.74 [deg] Sun_angle= -10.9 [hr] (East of Sun) MOON_POSTN: 81.16d {+05h 24m 38s} +28.17d {+28d 10' 14"} MOON_DIST: 116.52 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 302.45, 46.54 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 197.91,-10.10 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 244.97,-25.23 [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 04:13:59 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 59 TRIGGER_NUM: 798437606 GRB_RA: 192.550d {+12h 50m 12s} (J2000), 192.896d {+12h 51m 35s} (current), 191.892d {+12h 47m 34s} (1950) GRB_DEC: -16.250d {-16d 15' 00"} (J2000), -16.393d {-16d 23' 33"} (current), -15.978d {-15d 58' 39"} (1950) GRB_ERROR: 7.50 [deg radius, statistical plus systematic] GRB_INTEN: 385 [cnts/sec] DATA_SIGNIF: 24.70 [sigma] INTEG_TIME: 2.048 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 197.00 [deg] GRB_THETA: 60.00 [deg] DATA_TIME_SCALE: 2.0480 [sec] HARD_RATIO: 1.20 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 98% GRB 2nd_MOST_LIKELY: 1% Generic SGR DETECTORS: 0,0,0, 0,0,0, 1,1,1, 0,0,0, 0,0, SUN_POSTN: 28.95d {+01h 55m 48s} +11.85d {+11d 51' 01"} SUN_DIST: 163.79 [deg] Sun_angle= -10.9 [hr] (East of Sun) MOON_POSTN: 81.16d {+05h 24m 39s} +28.17d {+28d 10' 15"} MOON_DIST: 116.51 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 302.50, 46.62 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 197.90,-10.01 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 244.97,-25.23 [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 04:14:05 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 70 TRIGGER_NUM: 798437606 GRB_RA: 196.417d {+13h 05m 40s} (J2000), 196.770d {+13h 07m 05s} (current), 195.746d {+13h 02m 59s} (1950) GRB_DEC: -21.450d {-21d 26' 59"} (J2000), -21.590d {-21d 35' 24"} (current), -21.182d {-21d 10' 56"} (1950) GRB_ERROR: 6.48 [deg radius, statistical plus systematic] GRB_INTEN: 1166 [cnts/sec] DATA_SIGNIF: 38.10 [sigma] INTEG_TIME: 0.512 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 192.00 [deg] GRB_THETA: 55.00 [deg] DATA_TIME_SCALE: 0.5120 [sec] HARD_RATIO: 0.80 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 98% GRB 2nd_MOST_LIKELY: 1% Generic Transient DETECTORS: 0,0,0, 0,0,0, 1,1,1, 0,0,0, 0,0, SUN_POSTN: 28.95d {+01h 55m 48s} +11.85d {+11d 51' 01"} SUN_DIST: 164.82 [deg] Sun_angle= -11.2 [hr] (East of Sun) MOON_POSTN: 81.16d {+05h 24m 39s} +28.17d {+28d 10' 15"} MOON_DIST: 121.87 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 307.34, 41.30 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 203.42,-13.35 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 244.97,-25.23 [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 04:14:09 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 58 TRIGGER_NUM: 798437606 GRB_RA: 191.890d {+12h 47m 34s} (J2000), 192.235d {+12h 48m 56s} (current), 191.236d {+12h 44m 57s} (1950) GRB_DEC: -14.170d {-14d 10' 11"} (J2000), -14.313d {-14d 18' 46"} (current), -13.897d {-13d 53' 49"} (1950) GRB_ERROR: 3.46 [deg radius, statistical only] DATA_SIGNIF: 27.80 [sigma] DATA_INTERVAL: 2.048 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 198.00 [deg] GRB_THETA: 62.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 28.95d {+01h 55m 48s} +11.85d {+11d 51' 01"} SUN_DIST: 163.54 [deg] Sun_angle= -10.9 [hr] (East of Sun) MOON_POSTN: 81.16d {+05h 24m 39s} +28.17d {+28d 10' 15"} MOON_DIST: 115.08 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 301.51, 48.69 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 196.48, -8.35 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_798437606.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: Tue 21 Apr 26 04:14:53 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 1 TRIGGER_NUM: 798437606 GRB_RA: 191.760d {+12h 47m 02s} (J2000), 192.105d {+12h 48m 25s} (current), 191.105d {+12h 44m 25s} (1950) GRB_DEC: -15.210d {-15d 12' 35"} (J2000), -15.353d {-15d 21' 11"} (current), -14.937d {-14d 56' 13"} (1950) GRB_ERROR: 3.27 [deg radius, statistical only] DATA_SIGNIF: 27.00 [sigma] DATA_INTERVAL: 6.144 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 198.00 [deg] GRB_THETA: 61.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 28.95d {+01h 55m 48s} +11.85d {+11d 51' 01"} SUN_DIST: 163.26 [deg] Sun_angle= -10.9 [hr] (East of Sun) MOON_POSTN: 81.17d {+05h 24m 41s} +28.17d {+28d 10' 16"} MOON_DIST: 115.39 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 301.36, 47.65 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 196.78, -9.35 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_798437606.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. 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: Tue 21 Apr 26 04:15:04 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 2 TRIGGER_NUM: 798437606 GRB_RA: 193.330d {+12h 53m 19s} (J2000), 193.678d {+12h 54m 43s} (current), 192.670d {+12h 50m 41s} (1950) GRB_DEC: -17.330d {-17d 19' 47"} (J2000), -17.472d {-17d 28' 20"} (current), -17.059d {-17d 03' 30"} (1950) GRB_ERROR: 1.66 [deg radius, statistical only] DATA_SIGNIF: 30.60 [sigma] DATA_INTERVAL: 11.264 [sec] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 196.00 [deg] GRB_THETA: 59.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 28.95d {+01h 55m 48s} +11.85d {+11d 51' 02"} SUN_DIST: 164.20 [deg] Sun_angle= -11.0 [hr] (East of Sun) MOON_POSTN: 81.17d {+05h 24m 42s} +28.17d {+28d 10' 16"} MOON_DIST: 117.62 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 303.57, 45.54 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 199.03,-10.70 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_798437606.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: Tue 21 Apr 26 04:21:12 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 798437606 GRB_RA: 188.790d {+12h 35m 10s} (J2000), 189.134d {+12h 36m 32s} (current), 188.136d {+12h 32m 33s} (1950) GRB_DEC: -17.800d {-17d 48' 00"} (J2000), -17.945d {-17d 56' 40"} (current), -17.525d {-17d 31' 28"} (1950) GRB_ERROR: 2.39 [deg radius, statistical only] GRB_DATE: 21151 TJD; 111 DOY; 26/04/21 GRB_TIME: 15201.17 SOD {04:13:21.17} UT GRB_PHI: 201.00 [deg] GRB_THETA: 58.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 28.96d {+01h 55m 49s} +11.85d {+11d 51' 07"} SUN_DIST: 159.92 [deg] Sun_angle= -10.7 [hr] (East of Sun) MOON_POSTN: 81.24d {+05h 24m 59s} +28.17d {+28d 10' 26"} MOON_DIST: 113.77 [deg] MOON_ILLUM: 19 [%] GAL_COORDS: 297.46, 44.90 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 195.17,-12.86 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_lc_medres34_bn260421176.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2026/bn260421176/quicklook/glg_locplot_all_bn260421176.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.