TITLE: GCN CIRCULAR NUMBER: 7415 SUBJECT: GRB080310 : Lulin Optical observations DATE: 08/03/12 18:54:46 GMT FROM: Yuji Urata at Saitama U Y. Urata, T.W. Chen, K.Y. Huang, L.C. Huang, M. Im, I. Lee on behalf of EAFON report: "We have made R-band images for the optical afterglow of GRB 080310 (Chornock et al. GCN 7381; Cummings et al., GCN 7382) using the Lulin 1m telescope. According to USNO-B1.0 calibration, the afterglow at 1.44 days after the burst is R=21.3+/-0.1. This observation confirm the plateau or bump reported by Garnavich et al., (GCN 7414). The R-band lightcuve made from our observations (T.W. Chen et al., GCN 7395; Urata et al., GCN 7412) and the LBT points (Garnavich et al., GCN 7409, 7414) is resemble to that of GRB030329 (e.g. Lipkin et al 2004)." This message may be cited.