TITLE: GCN CIRCULAR NUMBER: 19078 SUBJECT: GRB 160225A: TSHAO optical upper limit DATE: 16/02/25 17:37:58 GMT FROM: Alexei Pozanenko at IKI, Moscow E. Mazaeva (IKI), A. Kusakin (Fesenkov Astrophysical Institute), I. Reva (Fesenkov Astrophysical Institute), A. Volnova (IKI), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the Swift GRB 160225A (Siegel et al., GCN 19075) with Zeiss-1000 (West) 1-m telescope of Tien Shan Astronomical Observatory. We obtained several images in R filter starting on Feb. 25 (UT) 14:46:05. In the first images we do not detect any optical source within enhanced Swift-XRT position (Goad et al., GCN 19077). Preliminary photometry of one of single 90 s image is following Date UT start t-T0 Filter Exp. UL (3sigma) (mid, days) (s) 2016-02-25 14:47:35 0.01903 R 1*90 18.90