TITLE: GCN CIRCULAR NUMBER: 17259 SUBJECT: GRB 141229A: Deep MASTER inspection DATE: 14/12/31 09:50:02 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy,V. Lipunov, P.Balanutsa, D.Denisenko, M.Pruzhinskaya,A.Kuznetsov, V.Kornilov, D.Kuvshinov, N.Tyurina Lomonosov Moscow State University, Sternberg Astronomical Institute D.Buckley, S. Potter, A. Kniazev South African Astronomical Observatory O.Gres, K.Ivanov, S.Yazev, N.M.Budnev, V.A.Poleshchuk Irkutsk State University V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Krushinsky, I.Zalozhnih, A. Popov Ural Federal University, Kourovka H. Levato and C. Saffe Instituto de Ciencias Astronomicas de la Tierra y del Espacio (ICATE), San Juan, Argentina C. Mallamacci, C. Lopez and F. Podest Observatorio Astronomico Felix Aguilar (OAFA), San Juan National University, Argentina MASTER-Kislovodsk robotic telescope (in Russia) was pointed to MAXI GRB141229A (Fujita et al., GCN 17246) error box after 5 hours (direktly after error box arises at 2014-12-29 16:46:38 UT. MASTER-SAAO robotic telescope (MASTER-Net: http://observ.pereplet.ru) instaleted in South African Astronomical Observatory (Sutherland) automaticaly was pointed to the MAXI GRB141229A (Fujita et al., GCN 17246) after sun set at 2014-12-29 20:57:10 UT (9 hours after trigger time) in unfiltered regime. There is no any optical transients inside Swift XRT error box (Bernardini et al., GCN 17251). Our upper limits on Kislovodsk and SAAO observatiories available in Table 1. Table 1. Date Time (start) T_trig-Tmid Expt. Site. Mlim Coadd UT s 2014-12-29 16:46:38.543 19531 2160 KIS 19.6 12 2014-12-29 20:57:10.861 34986 3600 SAAO 22.3 20 MASTER-SAAO image available here: http://master.sai.msu.ru/static/GRB/MASTER_SAAO_GRB141225A.png This message may be cited.