TITLE: GCN CIRCULAR NUMBER: 10216 SUBJECT: GRB 091130B: MASTER observations DATE: 09/11/30 18:25:05 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs S.Sergienko, V.Yurkov Blagoveschensk Educational State University, Blagoveschensk E. Gorbovskoy, D. Zimnukhov, V. Lipunov, V.Kornilov, A.Belinski, D.Kuvshinov, N.Shatskiy, N.Tyurina, P.Balanutsa, V.V.Chazov, A.Kuznetsov Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parkhomenko, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh, T.Kopytova, A. Popov Ural State University, Kourovka S.Yazev, K.Ivanov, N.M.Budnev, E.Konstantinov, V.Lenok Irkutsk State University MASTER robotic telescope (MASTER-Net: http://observ.pereplet.ru, D= 200 mm, FOV= 7 square degrees, 16 Mpx Apogee CCD, testing mode) located at Blagoveschensk was responted to the GRB 091130B (Racusin et al., GCN 10214) 40 sec after Notice time and 65 s after the GRB time. The exposition of the first image is 10s. We do not see OT brighter 15 mag at the Swift XRT position. The reduction is continued. The message may be cited. We note that MASTER-Amur-Blagoveschensk are in testing mode now. mailto: lipunov@sai.msu.ru