////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 18 Oct 25 17:21:51 UT NOTICE_TYPE: Fermi-GBM Alert RECORD_NUM: 1 TRIGGER_NUM: 782500909 GRB_DATE: 20966 TJD; 291 DOY; 25/10/18 GRB_TIME: 62504.68 SOD {17:21:44.68} UT TRIGGER_SIGNIF: 5.0 [sigma] TRIGGER_DUR: 0.064 [sec] E_RANGE: 3-4 [chan] 47-291 [keV] ALGORITHM: 5 DETECTORS: 1,1,0, 0,0,0, 0,0,0, 0,0,0, 0,0, LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251018723/quicklook/glg_lc_medres34_bn251018723.gif COMMENTS: Fermi-GBM Trigger Alert. COMMENTS: This trigger occurred at longitude,latitude = 46.22,-24.98 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 18 Oct 25 17:22:14 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 48 TRIGGER_NUM: 782500909 GRB_RA: 140.250d {+09h 21m 00s} (J2000), 140.376d {+09h 21m 30s} (current), 140.004d {+09h 20m 01s} (1950) GRB_DEC: -65.783d {-65d 46' 59"} (J2000), -65.894d {-65d 53' 37"} (current), -65.570d {-65d 34' 10"} (1950) GRB_ERROR: 19.78 [deg radius, statistical plus systematic] GRB_INTEN: 258 [cnts/sec] DATA_SIGNIF: 6.20 [sigma] INTEG_TIME: 0.256 [sec] GRB_DATE: 20966 TJD; 291 DOY; 25/10/18 GRB_TIME: 62504.68 SOD {17:21:44.68} UT GRB_PHI: 63.00 [deg] GRB_THETA: 40.00 [deg] DATA_TIME_SCALE: 0.2560 [sec] HARD_RATIO: 0.93 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 58% GRB 2nd_MOST_LIKELY: 40% Distant Particles DETECTORS: 1,1,0, 0,0,0, 0,0,0, 0,0,0, 0,0, SUN_POSTN: 203.72d {+13h 34m 52s} -9.89d {-09d 53' 20"} SUN_DIST: 70.29 [deg] Sun_angle= 4.2 [hr] (West of Sun) MOON_POSTN: 174.76d {+11h 39m 03s} +1.59d {+01d 35' 27"} MOON_DIST: 71.84 [deg] MOON_ILLUM: 7 [%] GAL_COORDS: 283.53,-11.20 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 201.17,-70.23 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251018723/quicklook/glg_lc_medres34_bn251018723.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 46.22,-24.98 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger. ////////////////////////////////////////////////////////////////////// TITLE: GCN/FERMI NOTICE NOTICE_DATE: Sat 18 Oct 25 17:22:33 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 59 TRIGGER_NUM: 782500909 GRB_RA: 158.030d {+10h 32m 07s} (J2000), 158.233d {+10h 32m 56s} (current), 157.637d {+10h 30m 33s} (1950) GRB_DEC: -67.170d {-67d 10' 11"} (J2000), -67.303d {-67d 18' 11"} (current), -66.912d {-66d 54' 43"} (1950) GRB_ERROR: 13.29 [deg radius, statistical only] DATA_SIGNIF: 7.50 [sigma] DATA_INTERVAL: 0.256 [sec] GRB_DATE: 20966 TJD; 291 DOY; 25/10/18 GRB_TIME: 62504.68 SOD {17:21:44.68} UT GRB_PHI: 52.00 [deg] GRB_THETA: 38.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 203.72d {+13h 34m 52s} -9.89d {-09d 53' 20"} SUN_DIST: 64.85 [deg] Sun_angle= 3.0 [hr] (West of Sun) MOON_POSTN: 174.76d {+11h 39m 03s} +1.59d {+01d 35' 22"} MOON_DIST: 69.87 [deg] MOON_ILLUM: 7 [%] GAL_COORDS: 290.01, -7.86 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 212.97,-64.60 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251018723/quicklook/glg_lc_medres34_bn251018723.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_782500909.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: Sat 18 Oct 25 17:31:02 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 782500909 GRB_RA: 245.910d {+16h 23m 38s} (J2000), 248.121d {+16h 32m 29s} (current), 241.794d {+16h 07m 11s} (1950) GRB_DEC: -85.950d {-85d 57' 00"} (J2000), -86.006d {-86d 00' 21"} (current), -85.827d {-85d 49' 36"} (1950) GRB_ERROR: 3.10 [deg radius, statistical only] GRB_DATE: 20966 TJD; 291 DOY; 25/10/18 GRB_TIME: 62504.68 SOD {17:21:44.68} UT GRB_PHI: 50.00 [deg] GRB_THETA: 15.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 203.72d {+13h 34m 53s} -9.89d {-09d 53' 28"} SUN_DIST: 77.27 [deg] Sun_angle= -3.0 [hr] (East of Sun) MOON_POSTN: 174.83d {+11h 39m 19s} +1.55d {+01d 33' 17"} MOON_DIST: 90.40 [deg] MOON_ILLUM: 7 [%] GAL_COORDS: 306.49,-24.65 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 266.38,-62.82 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251018723/quicklook/glg_lc_medres34_bn251018723.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2025/bn251018723/quicklook/glg_locplot_all_bn251018723.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 Short GRB.