//////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 31530 SUBJECT: GRB 220129A: Fermi GBM Final Real-time Localization DATE: 22/01/29 21:07:55 GMT FROM: Fermi GBM Team at MSFC/Fermi-GBM The Fermi GBM team reports the detection of a likely LONG GRB At 20:57:30 UT on 29 Jan 2022, the Fermi Gamma-ray Burst Monitor (GBM) triggered and located GRB 220129A (trigger 665182655.40502 / 220129873). The on-ground calculated location, using the Fermi GBM trigger data, is RA = 244.4, Dec = 2.9 (J2000 degrees, equivalent to J2000 16h 17m, 2d 53'), with a statistical uncertainty of 22.5 degrees. The angle from the Fermi LAT boresight is 16.0 degrees. The skymap can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220129873/quicklook/glg_skymap_all_bn220129873.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/bn220129873/quicklook/glg_healpix_all_bn220129873.fit The GBM light curve can be found here: https://heasarc.gsfc.nasa.gov/FTP/fermi/data/gbm/triggers/2022/bn220129873/quicklook/glg_lc_medres34_bn220129873.gif //////////////////////////////////////////////////////////////////////// TITLE: GCN CIRCULAR NUMBER: 31531 SUBJECT: Fermi GRB 220129A: Global MASTER-Net observations report DATE: 22/01/30 00:45:34 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 220129A ( Fermi GBM team, GCN 31530) errorbox 11830 sec after notice time and 11857 sec after trigger time at 2022-01-30 00:15:07 UT, with upper limit up to 17.0 mag. The observations began at zenith distance = 80 deg. The sun altitude is -46.0 deg. The galactic latitude b = 35 deg., longitude l = 16 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1864208 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 11887 | 2022-01-30 00:15:07 | MASTER-Kislovodsk | (17h 35m 07.65s , +14d 09m 34.0s) | C | 60 | 17.0 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.