TITLE: GCN CIRCULAR NUMBER: 7261 SUBJECT: GRB 080205: MASTER optical observation DATE: 08/02/06 14:37:12 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs D.Kuvshinov, V. Lipunov, V.Kornilov, E.Gorbovskoy, N.Tyurina, A.Belinski, A.Krylov, N.Shatskiy, A.Sankovich, V.Vladimirov, P.Gritsyk, V.Vibornov, A.Kuznetsov, P.Balanutsa Sternberg Astronomical Institute, Moscow Union 'Optic' MASTER robotic system (http://observ.pereplet.ru) observed GRB 080205 (GRB_TIME is 08:21:36 UT, Markwardt et al. GCN Circ 7250 ) in survey mode (the GRB was at day time for Moscow). The weather was good. We have 31 images from 16:22:35 to 17:24:46 (481 - 545 minutes after the GRB time) with mean time: 16 54 UT (513 min after GRB time). The unfiltered image is calibrated relative to USNO A2.0 (0.8 R + 0.2 B). The robot not find OT brighter then 19.5m at KAIT's position (Li et al., GCN Circ 7251). Our limit is agreement with power low line between Li et al.,(GCN Circ 7254) and Rol & Anderson (GCN CIRC 7258) observations. This message can be cited. Mailto: lipunov@sai.msu.ru