TITLE:   GCN CIRCULAR
NUMBER:  10067
SUBJECT: GRB 091024: Xinglong TNT optical observation
DATE:    09/10/24 14:41:05 GMT
FROM:    L.P. Xin at NAOC  <xlp@bao.ac.cn>

H.Li, L.P. Xin, J. Wang, Y.L. Qiu, J.Y. Wei, W. K. Zheng, 
J.S. Deng, and C. Wu, J.Y. Hu on behalf of EAFON report:

We have observed GRB 091024 (Marshall et al. GCN 10062)
with Xinglong TNT telescope from  Oct. 24, 10:27:11 (UT),
1.3 hour after the burst. The optical afterglow 
(Cano et al. GCN 10066; Cucchiara et al. GCN 10065;
Mundell et al. GCN 10063) has been detected in our images.
The brightness is estimated to be about R~18.5 mag
derived from  USNO-A1.0 R magnitude, at the mean time
of 1.38 hour since the trigger.

The observation is still going.

This message may be cited.

For more information about Xinglong GRBs Follow-up
observations, please visit the website:
http://www.xinglong-naoc.org/grb/