////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 21 Mar 25 21:47:41 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 764286461 GRB_DATE: 20755 TJD; 80 DOY; 25/03/21 GRB_TIME: 78456.18 SOD {21:47:36.18} UT TRIGGER_SIGNIF: 4.5 [sigma] TRIGGER_DUR: 0.512 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 11 DETECTORS: 0,0,0, 1,0,0, 0,0,1, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250321908/quicklook/glg_lc_medres34_bn250321908.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 232.00,-25.18 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 21 Mar 25 21:48:05 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 48 TRIGGER_NUM: 764286461 GRB_RA: 100.567d {+06h 42m 16s} (J2000), 100.810d {+06h 43m 14s} (current), 100.084d {+06h 40m 20s} (1950) GRB_DEC: -30.050d {-30d 03' 00"} (J2000), -30.076d {-30d 04' 33"} (current), -30.000d {-30d 00' 00"} (1950) GRB_ERROR: 14.93 [deg radius, statistical plus systematic] GRB_INTEN: 86 [cnts/sec] DATA_SIGNIF: 7.40 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 20755 TJD; 80 DOY; 25/03/21 GRB_TIME: 78456.18 SOD {21:47:36.18} UT GRB_PHI: 248.00 [deg] GRB_THETA: 55.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.22 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 97% GRB 2nd_MOST_LIKELY: 1% Generic Transient DETECTORS: 0,0,0, 1,0,0, 0,0,1, 0,0,0, 0,0, SUN_POSTN: 1.40d {+00h 05m 37s} +0.61d {+00d 36' 31"} SUN_DIST: 98.44 [deg] Sun_angle= -6.6 [hr] (East of Sun) MOON_POSTN: 264.13d {+17h 36m 31s} -28.66d {-28d 39' 26"} MOON_DIST: 119.15 [deg] MOON_ILLUM: 56 [%] GAL_COORDS: 239.36,-15.02 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 105.27,-52.93 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250321908/quicklook/glg_lc_medres34_bn250321908.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 232.00,-25.18 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Fri 21 Mar 25 21:48:22 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 58 TRIGGER_NUM: 764286461 GRB_RA: 104.900d {+06h 59m 36s} (J2000), 105.153d {+07h 00m 37s} (current), 104.398d {+06h 57m 36s} (1950) GRB_DEC: -27.250d {-27d 15' 00"} (J2000), -27.286d {-27d 17' 10"} (current), -27.180d {-27d 10' 46"} (1950) GRB_ERROR: 6.54 [deg radius, statistical only] DATA_SIGNIF: 9.60 [sigma] DATA_INTERVAL: 4.096 [sec] GRB_DATE: 20755 TJD; 80 DOY; 25/03/21 GRB_TIME: 78456.18 SOD {21:47:36.18} UT GRB_PHI: 245.00 [deg] GRB_THETA: 59.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 1.40d {+00h 05m 37s} +0.61d {+00d 36' 31"} SUN_DIST: 102.48 [deg] Sun_angle= -6.9 [hr] (East of Sun) MOON_POSTN: 264.13d {+17h 36m 31s} -28.66d {-28d 39' 26"} MOON_DIST: 120.54 [deg] MOON_ILLUM: 56 [%] GAL_COORDS: 238.34,-10.41 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 110.66,-49.63 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250321908/quicklook/glg_lc_medres34_bn250321908.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_764286461.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: Fri 21 Mar 25 21:56:45 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 764286461 GRB_RA: 89.350d {+05h 57m 24s} (J2000), 89.597d {+05h 58m 23s} (current), 88.861d {+05h 55m 27s} (1950) GRB_DEC: -28.480d {-28d 28' 47"} (J2000), -28.479d {-28d 28' 42"} (current), -28.484d {-28d 29' 03"} (1950) GRB_ERROR: 4.96 [deg radius, statistical only] GRB_DATE: 20755 TJD; 80 DOY; 25/03/21 GRB_TIME: 78456.18 SOD {21:47:36.18} UT GRB_PHI: 260.00 [deg] GRB_THETA: 53.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 1.41d {+00h 05m 38s} +0.61d {+00d 36' 40"} SUN_DIST: 88.70 [deg] Sun_angle= -5.9 [hr] (East of Sun) MOON_POSTN: 264.21d {+17h 36m 51s} -28.66d {-28d 39' 38"} MOON_DIST: 122.63 [deg] MOON_ILLUM: 56 [%] GAL_COORDS: 234.09,-23.59 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 89.07,-51.92 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250321908/quicklook/glg_lc_medres34_bn250321908.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn250321908/quicklook/glg_locplot_all_bn250321908.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.