TITLE: GCN CIRCULAR NUMBER: 14854 SUBJECT: GRB 130610A: LOAO BVR Observation DATE: 13/06/10 15:24:59 GMT FROM: Myungshin Im at Seoul Nat U M. Im (CEOU/SNU), H.-I. Sung(KASI), and Y. Urata (NCU) on behalf of EAFON We observed the field of GRB 130610A (Cummings et al. GCN 14842), using a 1-m telescope at Mt. Lemmon Optical Observatory (LOAO) in Arizona, US. The observation started at 2013-06-10 05:54:16 UT, about 2.7 hrs after the burst alert, and a series of images were taken in B, R, and I-band for about 40 min. We identify the afterglow (Melandri et al. GCN 14843), in all the three bands, with approximate magnitude of B = 21.35 +- 0.12, V=20.90 +- 0.26, and R=20.35 +- 0.18, all in Vega magnitude, calibrated against a star in the vicinity using SDSS photometry converted to BVR. We thank the LOAO operator, In-Kyung Baek for performing the observation.