(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 11 Jan 23 19:07:54 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 58 TRIGGER_NUM: 695156867 GRB_RA: 319.083d {+21h 16m 20s} (J2000), 319.401d {+21h 17m 36s} (current), 318.392d {+21h 13m 34s} (1950) GRB_DEC: -15.300d {-15d 18' 00"} (J2000), -15.203d {-15d 12' 09"} (current), -15.509d {-15d 30' 32"} (1950) GRB_ERROR: 19.87 [deg radius, statistical plus systematic] GRB_INTEN: 83 [cnts/sec] DATA_SIGNIF: 7.70 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 19955 TJD; 11 DOY; 23/01/11 GRB_TIME: 68862.90 SOD {19:07:42.90} UT GRB_PHI: 25.00 [deg] GRB_THETA: 95.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.90 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 92% GRB 2nd_MOST_LIKELY: 3% Solar Flare DETECTORS: 0,1,0, 0,0,1, 0,0,0, 0,0,0, 0,0, SUN_POSTN: 293.02d {+19h 32m 04s} -21.75d {-21d 45' 00"} SUN_DIST: 25.83 [deg] Sun_angle= -1.8 [hr] (East of Sun) MOON_POSTN: 166.82d {+11h 07m 16s} +10.20d {+10d 11' 52"} MOON_DIST: 152.81 [deg] MOON_ILLUM: 81 [%] GAL_COORDS: 34.78,-38.87 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 316.80, 0.53 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_lc_medres34_bn230111797.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 217.47,24.22 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 11 Jan 23 19:07:46 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 45 TRIGGER_NUM: 695156867 GRB_RA: 307.483d {+20h 29m 56s} (J2000), 307.806d {+20h 31m 14s} (current), 306.781d {+20h 27m 07s} (1950) GRB_DEC: -15.433d {-15d 25' 59"} (J2000), -15.355d {-15d 21' 17"} (current), -15.601d {-15d 36' 04"} (1950) GRB_ERROR: 31.88 [deg radius, statistical plus systematic] GRB_INTEN: 99 [cnts/sec] DATA_SIGNIF: 4.60 [sigma] INTEG_TIME: 1.024 [sec] GRB_DATE: 19955 TJD; 11 DOY; 23/01/11 GRB_TIME: 68862.90 SOD {19:07:42.90} UT GRB_PHI: 15.00 [deg] GRB_THETA: 90.00 [deg] DATA_TIME_SCALE: 1.0240 [sec] HARD_RATIO: 1.13 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 83% GRB 2nd_MOST_LIKELY: 12% Solar Flare DETECTORS: 0,1,0, 0,0,1, 0,0,0, 0,0,0, 0,0, SUN_POSTN: 293.02d {+19h 32m 04s} -21.75d {-21d 45' 00"} SUN_DIST: 15.40 [deg] Sun_angle= -1.0 [hr] (East of Sun) MOON_POSTN: 166.82d {+11h 07m 16s} +10.20d {+10d 11' 53"} MOON_DIST: 141.66 [deg] MOON_ILLUM: 81 [%] GAL_COORDS: 29.43,-28.61 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 305.99, 3.45 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_lc_medres34_bn230111797.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 217.47,24.22 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Wed 11 Jan 23 19:08:01 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 57 TRIGGER_NUM: 695156867 GRB_RA: 317.860d {+21h 11m 26s} (J2000), 318.185d {+21h 12m 44s} (current), 317.153d {+21h 08m 37s} (1950) GRB_DEC: -19.370d {-19d 22' 11"} (J2000), -19.275d {-19d 16' 28"} (current), -19.575d {-19d 34' 30"} (1950) GRB_ERROR: 14.61 [deg radius, statistical only] DATA_SIGNIF: 8.10 [sigma] DATA_INTERVAL: 4.096 [sec] GRB_DATE: 19955 TJD; 11 DOY; 23/01/11 GRB_TIME: 68862.90 SOD {19:07:42.90} UT GRB_PHI: 22.00 [deg] GRB_THETA: 98.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 293.02d {+19h 32m 04s} -21.75d {-21d 45' 00"} SUN_DIST: 23.68 [deg] Sun_angle= -1.7 [hr] (East of Sun) MOON_POSTN: 166.82d {+11h 07m 17s} +10.20d {+10d 11' 50"} MOON_DIST: 150.91 [deg] MOON_ILLUM: 81 [%] GAL_COORDS: 29.35,-39.26 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 314.47, -3.01 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_lc_medres34_bn230111797.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_695156867.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 11 Jan 23 19:17:05 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 695156867 GRB_RA: 316.090d {+21h 04m 22s} (J2000), 316.422d {+21h 05m 41s} (current), 315.369d {+21h 01m 28s} (1950) GRB_DEC: -22.520d {-22d 31' 11"} (J2000), -22.427d {-22d 25' 38"} (current), -22.719d {-22d 43' 09"} (1950) GRB_ERROR: 8.93 [deg radius, statistical only] GRB_DATE: 19955 TJD; 11 DOY; 23/01/11 GRB_TIME: 68862.90 SOD {19:07:42.90} UT GRB_PHI: 19.00 [deg] GRB_THETA: 100.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 293.02d {+19h 32m 06s} -21.75d {-21d 44' 56"} SUN_DIST: 21.67 [deg] Sun_angle= -1.6 [hr] (East of Sun) MOON_POSTN: 166.89d {+11h 07m 33s} +10.16d {+10d 09' 52"} MOON_DIST: 148.38 [deg] MOON_ILLUM: 80 [%] GAL_COORDS: 24.83,-38.70 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 311.96, -5.54 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_lc_medres34_bn230111797.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2023/bn230111797/quicklook/glg_locplot_all_bn230111797.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: This is likely a Long GRB.
TITLE: GCN/MAXI NOTICE NOTICE_DATE: Wed 11 Jan 23 23:25:53 UT NOTICE_TYPE: MAXI Unknown Source Position EVENT_ID_NUM: 9955641598 EVENT_RA: 320.19d {+21h 20m 45s} (J2000), 320.53d {+21h 22m 07s} (current), 319.44d {+21h 17m 46s} (1950) EVENT_DEC: -30.58d {-30d 34' 36"} (J2000), -30.48d {-30d 28' 41"} (current), -30.79d {-30d 47' 22"} (1950) EVENT_ERROR: 1.0 [deg radius, stat+sys, 90% containment] EVENT_FLUX: 230.0 +- 0.0 [mCrab] EVENT_DATE: 19955 TJD; 11 DOY; 23/01/11 EVENT_TIME: 68864.00 SOD {19:07:44.00} UT EVENT_TSCALE: 30s EVENT_EBAND: Low, 2-4 keV SUN_POSTN: 293.21d {+19h 32m 51s} -21.72d {-21d 43' 17"} SUN_DIST: 25.97 [deg] MOON_POSTN: 168.78d {+11h 15m 07s} +9.26d {+09d 15' 38"} MOON_DIST: 146.19 [deg] MOON_ILLUM: 79 [%] GAL_COORDS: 15.52,-44.15 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 313.04,-14.33 [deg] ecliptic lon,lat of the burst (or transient) COMMENTS: MAXI Unknown Source Position. GRB or unknown X-ray Transient.
(319.214, -30.721) deg = (21 16 51, -30 43 15) (J2000) (319.406, -31.127) deg = (21 17 37, -31 07 37) (J2000) (321.653, -30.323) deg = (21 26 36, -30 19 22) (J2000) (321.454, -29.920) deg = (21 25 48, -29 55 12) (J2000)The X-ray flux averaged over the scan was 230 +- 30 mCrab (4.0-10.0keV, 1 sigma error). There was no significant excess flux in the previous transit at 17:34 UT and in the next transit at 20:40 UT with an upper limit of 20 mCrab for each.