//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 31578 SUBJECT: GRB 220211B: Fermi GBM Final Real-time Localization DATE: 22/02/11 15:56:52 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 15:46:28 UT on 11 Feb 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220211B (trigger 666287193.962164 / 220211657). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 3.8, Dec = 46.2 (J2000 degrees, equivalent to J2000 00h 15m, 46d 12'), with a statistical uncertainty of 7.0 degrees. The angle from the Fermi LAT boresight is 28.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220211657/quicklook/glg_skymap_all_bn220211657.png The HEALPix FITS file, including the estimated localization systematic, can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220211657/quicklook/glg_healpix_all_bn220211657.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220211657/quicklook/glg_lc_medres34_bn220211657.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 31579 SUBJECT: Fermi GRB 220211B: Global MASTER-Net observations report DATE: 22/02/11 16:30:20 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, E.Gorbovskoy, K.Zhirkov, N.Tyurina, P.Balanutsa, A.Kuznetsov, D. Vlasenko, G.Antipov, D.Zimnukhov, V.Senik, T.Pogrosheva, E.Minkina, A.Chasovnikov, V.Topolev, V.Grinshpun, D.Kuvshinov, D. Cheryasov (Lomonosov Moscow State University, SAI, Physics Department), R. Podesta, C.Lopez, F. Podesta, C.Francile (Observatorio Astronomico Felix Aguilar OAFA), R. Rebolo, M. Serra (The Instituto de Astrofisica de Canarias), D. Buckley (South African Astronomical Observatory), O.A. Gres, N.M. Budnev (Irkutsk State University, API), B.L.Carrasco, J.R.Valdes,V.Chavushyan, C.J.Martinez, V.M.Patino Alvarez, M.L.H.Rodriguez (INAOE, OAGH) A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A. Gabovich, V.Yurkov (Blagoveschensk Educational State University) MASTER-Kislovodsk robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Lomonosov MSU, Kislovodsk Solar Station of Pulkovo observatory) started inspect of the Fermi GRB 220211B ( Fermi GBM team, GCN 31578) errorbox 288 sec after notice time and 320 sec after trigger time at 2022-02-11 15:51:48 UT, with upper limit up to 16.9 mag. Observations started at twilight. The observations began at zenith distance = 43 deg. The sun altitude is -14.3 deg. The galactic latitude b = -16 deg., longitude l = 117 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1879384 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 350 | 2022-02-11 15:51:48 | MASTER-Kislovodsk | (00h 00m 04.54s , +44d 53m 56.1s) | C | 60 | 16.8 | 350 | 2022-02-11 15:51:49 | MASTER-Kislovodsk | (23h 53m 54.19s , +45d 16m 03.2s) | C | 60 | 14.9 | 430 | 2022-02-11 15:53:09 | MASTER-Kislovodsk | (00h 00m 04.28s , +43d 00m 53.6s) | C | 60 | 16.7 | 430 | 2022-02-11 15:53:09 | MASTER-Kislovodsk | (23h 54m 06.65s , +43d 23m 02.3s) | C | 60 | 15.1 | 1713 | 2022-02-11 16:14:31 | MASTER-Kislovodsk | (23h 59m 58.26s , +44d 52m 36.2s) | C | 60 | 16.8 | 1713 | 2022-02-11 16:14:31 | MASTER-Kislovodsk | (23h 53m 59.23s , +45d 14m 45.9s) | C | 60 | 14.3 | 1793 | 2022-02-11 16:15:51 | MASTER-Kislovodsk | (00h 00m 01.37s , +42d 59m 43.9s) | C | 60 | 16.9 | 1793 | 2022-02-11 16:15:52 | MASTER-Kislovodsk | (23h 54m 14.60s , +43d 21m 52.8s) | C | 60 | 14.2 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.