TITLE: GCN CIRCULAR NUMBER: 8672 SUBJECT: GRB 0811215A: MASTER prompt optical observations DATE: 08/12/15 19:54:49 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 Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinski, I.Zalognikh Ural State University, Kourovka S.Yazev, K.Ivanov Irkutsk State University One of the four MASTER Very Wide Field Cameras located at Kislovodsk (http://apollo.sai.msu.ru/, D=50 mm, 4x1000 square degrees, 35'' per pix) has observed Fermi error box (Trig Num 251059717) with 5s exposures during all night without time gap between images. The synhronous with GRB time image with M31 (Andromeda) are available http://observ.pereplet.ru/images/GRB081215A/film_grb.html We have dosen alert images on the new wide field MASTER telescope (FOW 8 square degrees up to 17 mag), that it just tested now (http://www.pereplet.ru/lipunov/257.html#257). The message may be cited. mailto: lipunov@sai.msu.ru