TITLE: GCN CIRCULAR NUMBER: 15745 SUBJECT: GRB 140103A: optical upper limit DATE: 14/01/16 07:41:19 GMT FROM: Alina Volnova at SAI MSU A. Volnova (IKI), A. Ivanov (KubSU), V. Ivanov (KubSU), V. Lysenko (KubSU), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of GRB follow-up collaboration: We observed the field of the Swift GRB 140103A (Mangano et al., GCN 15656) with 0.51-m f/8 telescope of Kuban State University Astrophysical Observatory on Jan. 3, starting 12 minutes after GRB trigger. We obtained several images of 30 s exposure in R-band. In the refined XRT position (Mangano, GCN 15666) we do not detect any object in stacked image. In particular we do not detected the optical afterglow candidate reported by Volnova et al. (GCN 15735). Details of the photometry are following: Date T_start t-t0, Filter Exp., OT (UT) mid, d s 2014-01-03 00:42:05 0.02314 R 80*30. >17.2 (3 sigma)