TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4485 SUBJECT: GRB060111.2:_MASTER optical limit DATE: 06/01/11 19:15:26 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, V.Kornilov, D.Kuvshinov, N.Tyurina, A.Belinski, E.Gorbovskoy, A.Krylov, G.Borisov, A.Sankovich, G.Antipov, V.Vladimirov Sternberg Astronomical Institute, Moscow Union 'Optic' MASTER robotic system (http://observ.pereplet.ru) responded to GRB060111.2 (GRB_TIME is 2006-01-11 04:23:06.12). The first image was at 2006-01-11 04:25:16 UT, 130 s after the GRB time (a half of an hour befor sunrise). The unfiltered image is calibrated relative to USNO A2.0 (0.8 R + 0.2 B). The robot not find OT-candidate in error box. Our final results on OT magnitude limit are: UT (start) Mean time After GRB time m exptime 04 25 16 04 25 31 130 s 16.0 30 sec The first JPG-image will be available at http://observ.pereplet.ru/images/GRB060111.2/1.jpg . This work is supported by RFFI 04-02-16411 grant. This message can be cited. Mailto: lipunov@sai.msu.ru