TITLE: GCN CIRCULAR NUMBER: 6311 SUBJECT: GRB 070419A: Lulin Optical observation DATE: 07/04/19 14:41:04 GMT FROM: Yuji Urata at Saitama U K.J. Fu, Y.H. Lee, K.Y. Huang and Y. Urata report on behalf of EAFON "We observed the optical afterglow of GRB070419A (Stamatikos et al #6302, Chornock et al #6304, Cenko et al #6306, Nishiura et al. #6308 and Rol et al #6309) with the Lulin One-meter Telescope started from 11:49 UT. The afterglow at 2.0 hours after the burst is visible in our R-band combined image with R = 21.8+/-0.3 (compared with USBO-B1.0 catalogue)." Further observations and analysis are in progress.