TITLE: GCN CIRCULAR NUMBER: 14992 SUBJECT: GRB 130702A: Xinglong TNT optical observation DATE: 13/07/07 14:51:36 GMT FROM: L.P. Xin at NAOC L.P. Xin, J. Y. Wei, Y.L. Qiu, J. Wang, J.S. Deng, C. Wu, X. H. Han on behalf of EAFON report: We began to observe the optical counterpart of the Fermi GRB 130702A ( Singer et al. GCN 14967; Collazzi et al. GCN 14972 ) with Xinglong TNT telescope between 14:10:35 and 15:37:22 UT on 5 June, 2013. 15*300 sec R-band images were obtained. The optical counterpart was found with a magnitude of R~19.7 mag, calibrated by USNO-B 1.0 R2 mag, at the mean time of 3.62 days after the burst.