TITLE: GCN CIRCULAR NUMBER: 15263 SUBJECT: GRB 130925A: optical upper limit DATE: 13/09/27 10:43:49 GMT FROM: Alexei Pozanenko at IKI, Moscow A. Volnova (IKI), N. Minikulov (Institute of Astrophysics), S. Abdulaev (Institute of Astrophysics), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration: We observed the field of GRB 130925A (Lien, et al., GCN 15246) with AZT-8 (0.7m) telescope of Gissar observatory in R filter starting on Sep. 25 (UT) 22:15. We do not detect optical afterglow (Sudilovsky et al., GCN 15247). A preliminary photometry of combined image is following T_start T0+ Filter, Exposure, OT, UL(3 sigma) (UT) (mid, d) (s) 2013-09-25T22:16:55 0.7766 R 60x60 n/d 19.9 The photometry is based on the reference star USNO-B1.0 0638-0038928 RA 02:45:02.36 Dec -26:10:50.2 (J2000), assuming R = 17.07