TITLE: GCN CIRCULAR NUMBER: 19184 SUBJECT: GRB 160314A: ISON-Ussuriysk optical upper limit DATE: 16/03/14 14:35:44 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), E. Chornaya (UAFO), E. Mazaeva (IKI), A. Matkin (UAFO, ISON), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of the GRB 160314A (D'Elia et al., GCN 19182) with SANTEL-650 (0.65m) telescope of UAFO/ISON-Ussuriysk observatory starting on March, 14 (UT) 11:32:51. We obtained series of unfiltered images of 30 s exposure. We do not detect any optical afterglow within XRT error circle (D'Elia et al., GCN 19182). Photometry of a combined image of few first frames is following Date UT start t-T0 Filter Exp. OT U_limit (3sigma) (mid, days) (s) 2016-03-14 11:32:51 0.01728 none 3*30 n/d 18.7 The photometry is based on nearby SDSS star J073110.29+170129.9 assuming R_Lupton = 16.132.