TITLE: GCN CIRCULAR NUMBER: 27857 SUBJECT: Fermi GRB 200529B: Global MASTER-Net observations report DATE: 20/05/29 13:15:16 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), H.Levato (Instituto de Ciencias Astronomicas, de la Tierra y del Espacio ICATE), 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-Amur robotic telescope (Global MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Russia (Blagoveshchensk State Pedagogical University) started inspect of the Fermi GRB 200529B ( Fermi GBM team, GCN 27854) errorbox 2976 sec after notice time and 3002 sec after trigger time at 2020-05-29 12:55:37 UT, with upper limit up to 14.8 mag. Observations started at twilight. The observations began at zenith distance = 65 deg. The sun altitude is -10.7 deg. The galactic latitude b = -7 deg., longitude l = 104 deg. Real time updated cover map and OT discovered available here: https://master.sai.msu.ru/site/master2/observ.php?id=1368860 We obtain a following upper limits. Tmid-T0 | Date Time | Site | Coord (J2000) |Filt.| Expt. | Limit| Comment _________|_____________________|_____________________|____________________________________|_____|_______|_______|________ 3032 | 2020-05-29 12:55:37 | MASTER-Amur | (22h 18m 14.11s , +56d 00m 18.3s) | C | 60 | 12.9 | 3112 | 2020-05-29 12:56:56 | MASTER-Amur | (22h 34m 45.33s , +53d 59m 24.8s) | C | 60 | 12.7 | 3191 | 2020-05-29 12:58:15 | MASTER-Amur | (22h 07m 32.10s , +53d 59m 30.6s) | C | 60 | 12.8 | 3271 | 2020-05-29 12:59:35 | MASTER-Amur | (22h 25m 19.03s , +52d 00m 14.2s) | C | 60 | 12.4 | 3350 | 2020-05-29 13:00:55 | MASTER-Amur | (22h 18m 08.85s , +56d 01m 11.0s) | C | 60 | 13.8 | 3431 | 2020-05-29 13:02:15 | MASTER-Amur | (22h 32m 32.38s , +56d 00m 04.3s) | C | 60 | 14.8 | Filter C is a clear (unfiltred) band. The observation and reduction will continue. The message may be cited.