TITLE: GCN CIRCULAR NUMBER: 6750 SUBJECT: Swift Alert 070810.8: MASTER optical observation DATE: 07/08/10 20:54:56 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, E.Gorbovskoy, A.Krylov, N.Shatskiy, N.Tyurina,G.Borisov, A.Sankovich, V.Vladimirov, O.S.Shvartsman Sternberg Astronomical Institute, Moscow Union 'Optic' I.Zalozhnih Ural State University Sternberg Astronomical Institute, Moscow Union 'Optic' MASTER robotic system (http://observ.pereplet.ru) responded to GRB070810.8 (GRB_TIME is 2007-08-10 19:54:05.85). The first image was at 2007-08-10 19:56:11 UT, 125.15 after the GRB time The unfiltered image is calibrated relative to USNO A2.0 (0.8 R + 0.2 B). The robot not find OT-candidate in error box brighter then 14.8 (s/n=10). The JPG-image will be available at http://observ.pereplet.ru/images/GRB070810.8/img/i12.jpg The reduction is continuing. This work is supported by RFFI 04-02-16411 grant. This message can be cited. Mailto: lipunov@sai.msu.ru