TITLE: GCN CIRCULAR NUMBER: 22886 SUBJECT: GRB 180704A: MASTER optical observation DATE: 18/07/04 06:33:15 GMT FROM: Vladimir Lipunov at Moscow State U/Krylov Obs V. Lipunov, E. Gorbovskoy, V.Kornilov, N.Tiurina, A.Kuznetsov, V.Chazov, I. Gorbunov, D. Vlasenko, D.Zimnukhov, D.Kuvshinov, P.Balanutsa, V.Vladimirov Lomonosov Moscow State University,SAI R. Rebolo, M. Serra, N. Lodieu, G. Israelian, L. Suarez-Andres The Instituto de Astrofisica de Canarias (IAC) A. Tlatov, V.Senik, D. Dormidontov Kislovodsk Solar Station of the Pulkovo Observatory R. Podesta, F. Podesta, C. Lopez, C.Francile Observatorio Astronomico Felix Aguilar (OAFA) H.Levato, Instituto de Ciencias Astronomicas, de la Tierra y del Espacio (ICATE) D. Buckley South African Astronomical Observatory O. Gres, N.M.Budnev , Yu.Ishmuhametova Irkutsk State University A. Gabovich, V. Yurkov, Yu. Sergienko Blagoveschensk Educational State University, Blagoveschensk MASTER-IAC robotic telescope (MASTER-Net: http://observ.pereplet.ru, Lipunov et al., 2010, Advances in Astronomy, vol. 2010, 30L) located in Spain (IAC Teide Observatory) was pointed to the Swift BAT GRB180704A (Sonbas et al. GCN 22885) 25 sec after notice time and 41 sec after trigger time at 2018-07-04 05:37:23 UT. On our 10,20s exposure set there is no optical transient within SWIFT error-box (ra=32.6375 dec=69.9478 r=0.05). The 5-sigma upper limit has been about 14.2mag The message may be cited. ==================================================================== The observations made on zenit distance = 48 degrees, galaxy latitude b = 8 degree. The moon (70 % bright part) is 54 degrees above the horizon. The distance between moon and object is 83 Observations started at twilight. The sun altitude is -7.5 degree, sunrise.