TITLE: GCN CIRCULAR NUMBER: 14239 SUBJECT: GRB 130216B: MASTER-Net early observation DATE: 13/02/18 11:22:50 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E. Gorbovskoy, V. Lipunov, V.Kornilov, D.Kuvshinov, A.Belinski, N.Tyurina, N.Shatskiy, P.Balanutsa, D.Zimnukhov, A.Kuznetsov, V.V.Chazov, D.Denisenko, A.Sankovich Sternberg Astronomical Institute, Moscow State University A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Sennik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, D.Varda, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk K.Ivanov, S.Yazev, N.M.Budnev, O.Gres, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University V.Krushinski, I.Zalozhnih, A. Popov Ural Federal University, Kourovka Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) Claudio Mallamaci, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA) MASTER-VWF robotic telescope (MASTER-Net: http://observ.pereplet.ru) in Kislovodsk was pointed to the GRB130216A 12 sec after notice time and 53 sec after GRB time at 2013-02-16 18:59:04.829 UT using FERMI coordinates (V.Chaplin et. al. GCN14235). We observ SWIFT error-box ( J. R. Cummings et al. GCN14232 ) by very wide field cameras (FOV=400 sq. deg.) and haven`t found optical transient on images with 5-sigma upper limit has been about 10 mag. Observations were made in bad weather condition at zenith distanse z=70 deg. The message may be cited.