TITLE: GCN CIRCULAR NUMBER: 10227 SUBJECT: GRB 091130A: Xinglong TNT upper limit DATE: 09/12/02 06:54:04 GMT FROM: L.P. Xin at NAOC Y.L. Qiu, X.F. Wang, C. Wu, L.P. Xin, J. Wang, J.Y. Wei, W. K. Zheng, J. S. Deng, and J. Y. Hu on behalf of EAFON report: We observed the optical afterglow of GRB 091130A (Krimm et al. GCN 10212) with Xinglong TNT telescope from Nov. 30th, 18:25:41 (UT), 2.27 hours after the burst. The weather is not good with a bright moon. After stacked 31*300s images, the 3 sigma upper limit is estimated to be R-21 mag from the SDSS magnitude, at the meam time of 4.2 hours after the burst. This message may be cited. for more information about Xinglong GRBs Follow-up observations, please visit the web-site http://www.xinglong-naoc.org/grb/