TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3882 SUBJECT: Possible GRB050825:MASTER optical observations DATE: 05/08/25 19:29:42 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, A.Krylov, N.Tyurina, A.Belinski, E.Gorbovskoy, D.Kuvshinov, G.Borisov, V.Vladimirov, G.Antipov, Krushinski V. Sternberg Astronomical Institute, Moscow Union "Optic" MASTER (http://observ.pereplet.ru) responded to GRB 050825 (Swift trigger 152038). The first image was 94 sec after SWIFT GRB050825 detection and 78 sec after notice time under the good weather condition (exp = 1sec). The limit 14.1 . On next images (unfiltered, close to R, exp. 30 sec) we do no see new objects in comparison to the DSS2 with limit 18.9 . Our m = 0.89R + 0.11B (R & B from USNO A). This work is supported by RFFI 04-02-16411 grant. This message can be cited. Mailto: lipunov@sai.msu.ru