TITLE: GCN CIRCULAR NUMBER: 18437 SUBJECT: GRB 151022A: MASTER-Ural observations DATE: 15/10/22 14:32:11 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka V. Lipunov, E. Gorbovskoy, N.Tyurina, V.Kornilov, P.Balanutsa, A.Kuznetsov, D.Kuvshinov, D. Vlasenko, E.Popova Lomonosov Moscow State University, Sternberg Astronomical Institute D.Buckley, S. Potter, A.Kniazev, M.Kotze South African Astronomical Observatory K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) Claudio Mallamaci, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA) MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Ural was pointed to the GRB151022A 16 after notice time and 76 sec after trigger time at 2015-10-22 14:07:48 UT in two polarizations. On our first (20s exposure) set we haven`t found optical transient within SWIFT error-box (ra=23 16 51 dec=+55 48 47 r=0.05). The 5-sigma upper limit has been about 16.0 mag The reduction is continued. The message may be cited. [GCN OPS NOTE(23oct15): The GRB name in the Subject line was changed from "0922A" to "1022A".]