TITLE: GCN CIRCULAR NUMBER: 11555 SUBJECT: GRB 110106B: MASTER optical observations DATE: 11/01/12 15:56:55 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, A.Belinski, N.Shatskiy, N.Tyurina, D.Kuvshinov, P.Balanutsa, V.V.Chazov, P.V.Kortunov, A.Kuznetsov, D.Zimnukhov, M. Kornilov, V.Shumkov, S.Shurpakov Sternberg Astronomical Institute, Moscow State University V.Krushinski, I.Zalozhnich, A. Popov Ural State University, Kourovka K.Ivanov, O.Chuvalaev, V.Poleschuk, E.Konstantinov, V.Lenok, O.Gres, S.Yazev, N.M.Budnev, 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, I.Kudelina Blagoveschensk Educational State University, Blagoveschensk MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in Kislovodsk was pointed to the GRB110106B (Sbarufatti et al., GCN Circ 11525) 23 sec s after notice time and 44 sec after GRB time at 2011-01-06 21:27:01.696 UT (Gorbovskoy et al., GCN Circ. 11548). On our first (10s exposure) set we haven`t found optical transient at Gemini position (Berger et al.,GCN Circ 11540). The upper limit on both telescopes has been about 16.0 mag. The composed images give next results: Lim Exp Start time Last image Telescope 18.9. 14220 2011-01-06 21:54:34.262 2011-01-07 03:24:31.621 East 19.2. 13860 2011-01-06 21:57:51.527 2011-01-07 02:51:35.346 West The message may be cited. mailto: lipunov@sai.msu.ru