TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2755 SUBJECT: GRB040929: MASTER optical observations DATE: 04/09/29 20:14:51 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, A.Krylov, V.Kornilov, G.Borisov, D.Kuvshinov, A.Belinski, M.Kuznetsov, S.Potanin, G.Antipov, E.Gorbovskoy, N.Tyurina Sternberg Astronomical Institute, Alexsandr Krylov Observatory, Moscow At 5h 10m after INTEGRAL alert 1991 MASTER robotic telescope (http://observ.pereplet.ru) had imaging the corresponding area of the sky under the large zenit distance, Moon and bad weather conditions. The first image was started at 19h38m UT. Now we have 25 unfiltered images of the error box (45s exposition, 40 x 50 arcmin, 200 mm camera). There is no optical transient up to 16 m inside INTEGRAL error box. Sum FITS image are available at http://observ.pereplet.ru/images/GRB040929/ This message may be cited.