TITLE: GCN CIRCULAR NUMBER: 19076 SUBJECT: GRB 160225A: MASTER-Amur early observations DATE: 16/02/25 14:47:57 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs A.Gabovich, V.Yurkov, Yu.Sergienko, D.Varda Blagoveschensk Educational State University, Blagoveschensk E. Gorbovskoy, N.Tyurina, V. Lipunov, V.Kornilov, P.Balanutsa, A.Kuznetsov, D.Kuvshinov Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow State University D.Buckley, S. Potter, M.Kotze South African Astronomical Observatory K.Ivanov, N.M.Budnev, O.Gres, V.A.Poleshchuk Irkutsk State University A. Tlatov, V.Senik, A.V. Parhomenko, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory R. Rebolo, M. Serra-Ricart, N. Lodieu, G. Israelian The Instituto de Astrofisica de Canarias MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Blagoveschensk was pointed to the GRB160225A 20 sec after notice time and 204 sec after Swift BAT trigger time at 2016-02-25 14:24:20 UT (Siegel et al, 19075). On our first (40s exposure) set we haven`t found optical transient within SWIFT error-box (ra=10 56 58 dec=+53 39 17 r=0.050000). The 5-sigma upper limit has been about 17.5 mag The message may be cited.