TITLE: GCN CIRCULAR NUMBER: 31141 SUBJECT: Swift GRB 211129A: Global MASTER-Net observations report DATE: 21/11/29 14:48:10 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), 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) was pointed to the Swift GRB 211129A ( J.D. Gropp et al., GCN 31136) errorbox 17290 sec after notice time and 17308 sec after trigger time at 2021-11-29 14:39:34 UT, with upper limit up to 16.0 mag. Observations started at twilight. The observations began at zenith distance = 45 deg. The sun altitude is -11.1 deg. The galactic latitude b = 20 deg., longitude l = 59 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1799491 We obtain a following upper limits. Tmid-T0 | Site |Filt.| Expt. | Limit| Comment _________|_____________________|_____|_______|______|________ 17399 | MASTER-Kislovodsk | C | 180 | 16.0 | 17399 | MASTER-Kislovodsk | C | 180 | 12.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.