TITLE: GCN CIRCULAR NUMBER: 16741 SUBJECT: Fermi TRIGGER_NUM 430583595: MASTER OT 20 hours later DATE: 14/08/25 14:10:25 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs N.Tyurina, V. Lipunov, E. Gorbovskoy, M.Pruzhinskaya, V.Kornilov, D.Kuvshinov, P.Balanutsa, A.Kuznetsov, V.V.Chazov, D.Denisenko, Lomonosov Moscow State University, Sternberg Astronomical Institute, Moscow State University V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov, A. Gabovich Blagoveschensk Educational State University, Blagoveschensk A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka 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) The second epoch observation of the MASTER OT J011101.13+603337.5 (GCN Cirs., 16740) was obtained by MASTER-Tunka at 2014-08-25 13:32:21 (~20 hours after first observations). The transient MASTER OT J011101.13+603337.5 slightly fell to 17.5 mag (unfiltered). 0.5 mag is very slow for GRB afterglow and CV nature of the OT is more plausible. Follow up spectral observations are required. The message may be cited.