TITLE: GCN CIRCULAR NUMBER: 29197 SUBJECT: Fermi GRB 201229B: Global MASTER-Net observations report DATE: 20/12/29 20:00:17 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tyurina, P.Balanutsa, A.Kuznetsov, F.Balakin, V.Vladimirov, D. Vlasenko, I.Gorbunov, D.Zimnukhov, V.Senik, T.Pogrosheva, 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, O.Ershova (Irkutsk State University, API), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), V. Yurkov, A. Gabovich, Yu. Sergienko (Blagoveschensk Educational State University) MASTER-SAAO robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in South Africa (South African Astronomical Observatory) started inspect of the Fermi GRB 201229B ( Fermi GBM team, GCN 29194) errorbox 15696 sec after notice time and 15741 sec after trigger time at 2020-12-29 19:42:34 UT, with upper limit up to 17.8 mag. The observations began at zenith distance = 59 deg. The sun altitude is -20.2 deg. The galactic latitude b = -56 deg., longitude l = 338 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1514878 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 15772 | 2020-12-29 19:42:34 | MASTER-SAAO | (22h 22m 49.08s , -52d 05m 54.8s) | C | 60 | 17.6 | 15932 | 2020-12-29 19:45:14 | MASTER-SAAO | (22h 32m 27.56s , -54d 04m 14.0s) | C | 60 | 17.8 | 16096 | 2020-12-29 19:47:58 | MASTER-SAAO | (22h 40m 43.06s , -50d 04m 29.3s) | C | 60 | 17.4 | 16176 | 2020-12-29 19:49:18 | MASTER-SAAO | (22h 48m 53.55s , -52d 05m 05.3s) | C | 60 | 17.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.