(All information courtesy of the instrument teams.)
Previous IAU Circulars
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 19 Oct 21 05:59:55 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 45 TRIGGER_NUM: 656315976 GRB_RA: 111.017d {+07h 24m 04s} (J2000), 111.226d {+07h 24m 54s} (current), 110.538d {+07h 22m 09s} (1950) GRB_DEC: -31.883d {-31d 52' 59"} (J2000), -31.927d {-31d 55' 36"} (current), -31.785d {-31d 47' 03"} (1950) GRB_ERROR: 6.33 [deg radius, statistical plus systematic] GRB_INTEN: 720 [cnts/sec] DATA_SIGNIF: 11.10 [sigma] INTEG_TIME: 0.128 [sec] GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 GRB_TIME: 21571.19 SOD {05:59:31.19} UT GRB_PHI: 81.00 [deg] GRB_THETA: 70.00 [deg] DATA_TIME_SCALE: 0.1280 [sec] HARD_RATIO: 0.00 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 100% Below horizon 2nd_MOST_LIKELY: 0% n/a DETECTORS: 0,0,1, 0,0,0, 0,0,0, 1,1,0, 0,0, SUN_POSTN: 204.18d {+13h 36m 43s} -10.07d {-10d 04' 05"} SUN_DIST: 87.17 [deg] Sun_angle= 6.2 [hr] (West of Sun) MOON_POSTN: 11.15d {+00h 44m 37s} +0.41d {+00d 24' 20"} MOON_DIST: 98.75 [deg] MOON_ILLUM: 98 [%] GAL_COORDS: 244.92, -7.68 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 120.49,-53.12 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_lc_medres34_bn211019250.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 212.73,-17.25 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 19 Oct 21 06:00:12 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 58 TRIGGER_NUM: 656315976 GRB_RA: 109.300d {+07h 17m 12s} (J2000), 109.490d {+07h 17m 58s} (current), 108.864d {+07h 15m 27s} (1950) GRB_DEC: -37.950d {-37d 57' 00"} (J2000), -37.990d {-37d 59' 24"} (current), -37.859d {-37d 51' 31"} (1950) GRB_ERROR: 1.00 [deg radius, statistical only] DATA_SIGNIF: 69.40 [sigma] DATA_INTERVAL: 0.512 [sec] GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 GRB_TIME: 21571.19 SOD {05:59:31.19} UT GRB_PHI: 79.00 [deg] GRB_THETA: 64.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 4173 (Gnd S/W Version number) SUN_POSTN: 204.18d {+13h 36m 43s} -10.07d {-10d 04' 05"} SUN_DIST: 87.47 [deg] Sun_angle= 6.3 [hr] (West of Sun) MOON_POSTN: 11.15d {+00h 44m 37s} +0.41d {+00d 24' 24"} MOON_DIST: 96.81 [deg] MOON_ILLUM: 98 [%] GAL_COORDS: 249.80,-11.64 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 120.74,-59.35 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_lc_medres34_bn211019250.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_656315976.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: Bright hard burst in the GBM. 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 19 Oct 21 06:00:04 UT NOTICE_TYPE: Fermi-GBM Flight Position RECORD_NUM: 59 TRIGGER_NUM: 656315976 GRB_RA: 100.767d {+06h 43m 04s} (J2000), 100.929d {+06h 43m 43s} (current), 100.394d {+06h 41m 35s} (1950) GRB_DEC: -44.450d {-44d 27' 00"} (J2000), -44.473d {-44d 28' 21"} (current), -44.399d {-44d 23' 55"} (1950) GRB_ERROR: 3.97 [deg radius, statistical plus systematic] GRB_INTEN: 1467 [cnts/sec] DATA_SIGNIF: 135.30 [sigma] INTEG_TIME: 4.096 [sec] GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 GRB_TIME: 21571.19 SOD {05:59:31.19} UT GRB_PHI: 81.00 [deg] GRB_THETA: 55.00 [deg] DATA_TIME_SCALE: 4.0960 [sec] HARD_RATIO: 0.43 LOC_ALGORITHM: 3 (version number of) MOST_LIKELY: 93% GRB 2nd_MOST_LIKELY: 4% Generic Transient DETECTORS: 0,0,1, 0,0,0, 0,0,0, 1,1,0, 0,0, SUN_POSTN: 204.18d {+13h 36m 43s} -10.07d {-10d 04' 05"} SUN_DIST: 92.21 [deg] Sun_angle= 6.9 [hr] (West of Sun) MOON_POSTN: 11.15d {+00h 44m 37s} +0.41d {+00d 24' 22"} MOON_DIST: 90.12 [deg] MOON_ILLUM: 98 [%] GAL_COORDS: 253.53,-20.03 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 110.08,-67.14 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_lc_medres34_bn211019250.gif COMMENTS: Fermi-GBM Flight-calculated Coordinates. COMMENTS: This trigger occurred at longitude,latitude = 212.73,-17.25 [deg]. COMMENTS: The LC_URL file will not be created until ~15 min after the trigger.
TITLE: GCN/INTEGRAL NOTICE NOTICE_DATE: Tue 19 Oct 21 06:00:52 UT NOTICE_TYPE: INTEGRAL SPI ACS Trigger TRIGGER_NUM: 9453, Sub_Num: 0 GRB_INTEN: 9.55 [sigma] GRB_TIME: 21572.69 SOD {05:59:32.69} UT GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 COMMENTS: INTEGRAL SPI_ACS GRB Trigger. COMMENTS: Time_Scale=2.0000 and Time_Error=1.0000. COMMENTS: COMMENTS: NOTE: This SPIACS event is temporally(1.0<100sec) coincident with the FERMI_GBM event (trignum=656315976). COMMENTS: COMMENTS: The SPIACS lightcurve can be found at: COMMENTS: ftp://isdcarc.unige.ch/arc/FTP/ibas/spiacs/2021-10/2021-10-19T05-59-32.5648-20871-23440-0.lc
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 19 Oct 21 06:01:08 UT NOTICE_TYPE: Fermi-GBM Ground Position RECORD_NUM: 3 TRIGGER_NUM: 656315976 GRB_RA: 109.300d {+07h 17m 12s} (J2000), 109.490d {+07h 17m 58s} (current), 108.864d {+07h 15m 27s} (1950) GRB_DEC: -37.950d {-37d 57' 00"} (J2000), -37.990d {-37d 59' 24"} (current), -37.859d {-37d 51' 31"} (1950) GRB_ERROR: 1.00 [deg radius, statistical only] DATA_SIGNIF: 121.00 [sigma] DATA_INTERVAL: 8.192 [sec] GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 GRB_TIME: 21571.19 SOD {05:59:31.19} UT GRB_PHI: 79.00 [deg] GRB_THETA: 64.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 204.18d {+13h 36m 44s} -10.07d {-10d 04' 06"} SUN_DIST: 87.47 [deg] Sun_angle= 6.3 [hr] (West of Sun) MOON_POSTN: 11.16d {+00h 44m 39s} +0.41d {+00d 24' 37"} MOON_DIST: 96.81 [deg] MOON_ILLUM: 98 [%] GAL_COORDS: 249.80,-11.64 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 120.74,-59.35 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_lc_medres34_bn211019250.gif POS_MAP_URL: http://gcn.gsfc.nasa.gov/notices_f/gbm_gnd_loc_map_656315976.fits COMMENTS: Fermi-GBM Ground-calculated Coordinates. COMMENTS: Bright hard burst in the GBM. 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. COMMENTS: COMMENTS: NOTE: This GBM event is temporally(1.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=9453).
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 19 Oct 21 06:08:48 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 656315976 GRB_RA: 109.210d {+07h 16m 50s} (J2000), 109.400d {+07h 17m 36s} (current), 108.774d {+07h 15m 06s} (1950) GRB_DEC: -37.830d {-37d 49' 47"} (J2000), -37.870d {-37d 52' 11"} (current), -37.739d {-37d 44' 21"} (1950) GRB_ERROR: 1.00 [deg radius, statistical only] GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 GRB_TIME: 21571.19 SOD {05:59:31.19} UT GRB_PHI: 79.00 [deg] GRB_THETA: 64.00 [deg] E_RANGE: 44.032 - 279.965 [keV] LOC_ALGORITHM: 41731 (Gnd S/W Version number) SUN_POSTN: 204.19d {+13h 36m 45s} -10.07d {-10d 04' 13"} SUN_DIST: 87.56 [deg] Sun_angle= 6.3 [hr] (West of Sun) MOON_POSTN: 11.22d {+00h 44m 53s} +0.44d {+00d 26' 23"} MOON_DIST: 96.72 [deg] MOON_ILLUM: 98 [%] GAL_COORDS: 249.66,-11.65 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 120.55,-59.25 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_lc_medres34_bn211019250.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_locplot_all_bn211019250.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: Bright hard burst in the GBM. COMMENTS: This is likely a Long GRB. COMMENTS: COMMENTS: NOTE: This GBM event is temporally(1.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=9453).
TITLE: GCN/FERMI NOTICE NOTICE_DATE: Tue 19 Oct 21 10:23:07 UT NOTICE_TYPE: Fermi-GBM Final Position RECORD_NUM: 0 TRIGGER_NUM: 656315976 GRB_RA: 109.560d {+07h 18m 14s} (J2000), 109.746d {+07h 18m 59s} (current), 109.133d {+07h 16m 32s} (1950) GRB_DEC: -39.190d {-39d 11' 23"} (J2000), -39.231d {-39d 13' 50"} (current), -39.098d {-39d 05' 51"} (1950) GRB_ERROR: 1.00 [deg radius, statistical only] GRB_DATE: 19506 TJD; 292 DOY; 21/10/19 GRB_TIME: 21571.19 SOD {05:59:31.19} UT GRB_PHI: 78.19 [deg] GRB_THETA: 63.07 [deg] E_RANGE: 50.000 - 300.000 [keV] LOC_ALGORITHM: 415 (Gnd S/W Version number) SUN_POSTN: 204.35d {+13h 37m 25s} -10.13d {-10d 08' 02"} SUN_DIST: 87.13 [deg] Sun_angle= 6.3 [hr] (West of Sun) MOON_POSTN: 13.19d {+00h 52m 47s} +1.42d {+01d 25' 05"} MOON_DIST: 95.97 [deg] MOON_ILLUM: 99 [%] GAL_COORDS: 251.03,-11.98 [deg] galactic lon,lat of the burst (or transient) ECL_COORDS: 121.79,-60.49 [deg] ecliptic lon,lat of the burst (or transient) LC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_lc_medres34_bn211019250.gif LOC_URL: http://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2021/bn211019250/quicklook/glg_locplot_all_bn211019250.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 has human-in-the-loop processing. COMMENTS: COMMENTS: NOTE: This GBM event is temporally(1.0<100sec) coincident with the INTEGRAL_SPIACS event (trignum=9453).
RA(2000.0) = 107.1+/-0.7 deg Decl.(2000.0) = -38.6+/-0.7 degWe estimate an additional systematic error of 2 deg.
Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 146 | 2021-10-19 06:01:42 | MASTER-IAC | (07h 17m 09.18s , -37d 56m 16.1s) | P| | 30 | 13.8 | 186 | 2021-10-19 06:01:42 | MASTER-IAC | (07h 17m 09.18s , -37d 56m 16.1s) | P| | 110 | 14.7 | Coadd 146 | 2021-10-19 06:01:42 | MASTER-IAC | (07h 16m 10.91s , -37d 50m 38.7s) | P- | 30 | 13.5 | 186 | 2021-10-19 06:01:42 | MASTER-IAC | (07h 16m 10.91s , -37d 50m 38.7s) | P- | 110 | 14.6 | Coadd 197 | 2021-10-19 06:02:33 | MASTER-IAC | (07h 17m 04.65s , -37d 56m 56.7s) | P| | 30 | 13.9 | 197 | 2021-10-19 06:02:33 | MASTER-IAC | (07h 16m 06.36s , -37d 51m 18.8s) | P- | 30 | 13.9 | 257 | 2021-10-19 06:03:23 | MASTER-IAC | (07h 17m 04.32s , -37d 55m 58.0s) | P| | 50 | 14.5 | 257 | 2021-10-19 06:03:23 | MASTER-IAC | (07h 16m 06.03s , -37d 50m 20.6s) | P- | 50 | 14.4 | 334 | 2021-10-19 06:04:34 | MASTER-IAC | (07h 17m 09.19s , -37d 56m 59.7s) | P| | 60 | 16.0 | 424 | 2021-10-19 06:04:34 | MASTER-IAC | (07h 17m 09.20s , -37d 56m 59.7s) | P| | 240 | 17.3 | Coadd 334 | 2021-10-19 06:04:34 | MASTER-IAC | (07h 16m 10.90s , -37d 51m 23.7s) | P- | 60 | 15.7 | 424 | 2021-10-19 06:04:34 | MASTER-IAC | (07h 16m 10.90s , -37d 51m 23.7s) | P- | 240 | 17.1 | Coadd 424 | 2021-10-19 06:05:55 | MASTER-IAC | (07h 17m 04.40s , -37d 58m 01.9s) | P| | 80 | 16.6 | 424 | 2021-10-19 06:05:55 | MASTER-IAC | (07h 16m 06.17s , -37d 52m 25.3s) | P- | 80 | 16.4 | 535 | 2021-10-19 06:07:35 | MASTER-IAC | (07h 17m 10.22s , -37d 58m 01.5s) | P| | 100 | 17.1 | 535 | 2021-10-19 06:07:35 | MASTER-IAC | (07h 16m 12.08s , -37d 52m 25.3s) | P- | 100 | 16.9 | 665 | 2021-10-19 06:09:36 | MASTER-IAC | (07h 17m 07.05s , -37d 56m 23.7s) | P| | 120 | 17.3 | 665 | 2021-10-19 06:09:36 | MASTER-IAC | (07h 16m 08.99s , -37d 50m 47.4s) | P- | 120 | 17.1 | 10660 | 2021-10-19 08:56:41 | MASTER-OAFA | (07h 10m 41.71s , -39d 22m 20.0s) | C | 60 | 17.6 | 10903 | 2021-10-19 09:00:43 | MASTER-OAFA | (07h 08m 39.36s , -37d 27m 29.3s) | C | 60 | 17.5 | 10983 | 2021-10-19 09:02:04 | MASTER-OAFA | (07h 18m 38.70s , -37d 26m 09.7s) | C | 60 | 17.3 | 11381 | 2021-10-19 09:08:42 | MASTER-OAFA | (07h 12m 16.15s , -41d 14m 31.8s) | C | 60 | 16.7 |Filter C is a clear (unfiltred) band.
--------------------------------------------------------- R.A.(J2000) Dec.(J2000) R +dR -dR deg deg deg deg deg --------------------------------------------------------- MGNS-HEND 27.190 10.927 89.034 +0.021 -0.022 Konus-HEND 200.705 -8.093 87.815 +0.017 -0.017 Konus-GBM 190.965 -7.594 80.456 +0.431 -0.431 ---------------------------------------------------------The MGNS-HEND and Konus-HEND annuli intersect to form two error boxes one of which is inconsistent with the Konus-GBM annulus, the KW ecliptic latitude response, and the Fermi (GBM) RoboBA and BALROG localizations.
--------------------------------------------- RA(2000), deg Dec(2000), deg --------------------------------------------- Center: 106.988 (07h 07m 57s) -38.779 (-38d 46' 43") Corners: 106.975 (07h 07m 54s) -38.728 (-38d 43' 41") 106.898 (07h 07m 36s) -39.122 (-39d 07' 19") 107.002 (07h 08m 01s) -38.819 (-38d 49' 07") 107.079 (07h 08m 19s) -38.424 (-38d 25' 25") ---------------------------------------------The error box area is 49 sq. arcmin, and its maximum dimension is 43 arcmin (the minimum one is 2.0 arcmin). The Sun distance was 89 deg.