//////////////////////////////////////////////////////////////////////// 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. //////////////////////////////////////////////////////////////////////// TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2756 SUBJECT: GRB040929,optical observation DATE: 04/09/30 05:29:04 GMT FROM: Shouta Maeno at U.of Miyazaki S.Maeno,E.Sonoda,Y.Matsuo,M.Yamauchi (University of Miyazaki) "We have observed the field covering the error box of GRB040929 (INTEGRAL trigger 1991:trigger time 14:28:48 UT) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki.The observation was started 15:03:18 (UT) on Sep.29. Observed field of view is 43 arcmin centerd onR.A=05h 03m 58.9s Dec.=+22d 11m 00.3s. We have compared our images with the USNO A2.0 catalog.Preliminary analysis shows there is no new source brighter than 17mag. in the GRB error box reported by INTEGRAL."