TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2810 SUBJECT: GRB041015: MASTER: Optical observations DATE: 04/10/15 19:30:54 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, Alexandr Krylov Observatory, Moscow At 4h 15m after INTEGRAL GRB trigger time (alert 2019) MASTER robotic telescope (http://observ.pereplet.ru) had imaging the corresponding area of the sky under the nice weather conditions. The first image was started at 15h23m UT. We have 20 unfiltered images of the error box (30s exposition, 2.4 x 2.4 degrees, 355 mm telescope, Alta U16 CCD camera). We can not find new stars with respect to DSS2 red images (R<21m). Sum FITS image are available at http://observ.pereplet.ru/images/GRB041015/ This message may be cited.