TITLE: GCN CIRCULAR NUMBER: 19704 SUBJECT: Swift Trigger 704327: MASTER syncronous optical observations DATE: 16/07/14 11:55:23 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs E.S. Gorbovskoy, V. Lipunov, N.Tyurina, V.Kornilov, P.Balanutsa, A.Kuznetsov, D.Kuvshinov, Lomonosov Moscow State University, Sternberg Astronomical Institute R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias D.Buckley, S. Potter, A.Kniazev, M.Kotze South African Astronomical Observatory O.Gres, K.Ivanov, S.Yazev, N.M.Budnev, O.Chuvalaev, V.A.Poleshchuk Irkutsk State University A. Tlatov, A.V. Parhomenko, D. Dormidontov, V.Senik Kislovodsk Solar Station of the Pulkovo Observatory V.Yurkov, Yu.Sergienko, A.Gabovich, E.Sinyakov Blagoveschensk Educational State University, Blagoveschensk Ricardo Podesta, Carlos Lopez and Federico Podest Observatorio Astronomico Felix Aguilar (OAFA) Hugo Levato and Carlos Saffe Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) MASTER II robotic telescope (MASTER-Net: http://observ.pereplet.ru) located in IAC was pointed to the possible GRB (Swift Trigger 704327, Sbarufatti et al., GCN 19700) 25 sec after notice time and 71 sec after trigger time at 2016-07-14 05:22:17 UT at two polarizations in a morning twinlight (sun altitude -11 d). The 5-sigma upper limit has been about 16.0 mag on first single (10 sec exposure) and 17.8 mag on coadd (290 sec exposure) images. Not very deep upper limits are explained by the observation in the twilight. We marginaly seen possible OT first images at 2 sigma level. Ra = 18 10 27.49 Dec = +72 03 50.6 Mag = 16.0 +- 0.5 MASTER-IAC wide field camera continiously observed Swift BAT error box before, during and after thigger with 5 sec unfiltered exposition. The 5-sigma upper limit has been about 10.5 on each 5 second exposure image. We haven`t found optical transient within Swift BAT error-box on this images. The message may be cited.