TITLE: GCN CIRCULAR NUMBER: 6416 SUBJECT: GRB 070518: OT confirmed form Xinglong TNT observation DATE: 07/05/18 16:06:03 GMT FROM: L.P. Xin at NAOC L.P. Xin, M.Zhai, Y.L. Qiu, J.Y. Wei, J.Y. Hu, J.S. Deng, Y. Urata, and W.K. Zheng on behalf of EAFON report: We have imaged the field of GRB 070518 (C. Guidorzi et al., GCN 6415) with the TNT 0.8m and EST 1m telescope at Xinglong Observatory started from 14:34:53 UT, 512s after the burst. Observation were performed with White, R, V and I filter, we estimate the OT has faded to ~ R=19.84 derieved form USNO A-2.0, 32.73 minutes after the burst Observation is still undergoing, deep observation are encouraged. This message may be cited.