[vsnet-grb-info 11253] GRB 111210A: Xinglong TNT upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  12665
SUBJECT: GRB 111210A: Xinglong TNT upper limit
DATE:    11/12/12 04:04:48 GMT
FROM:    L.P. Xin at NAOC  <xlp at bao.ac.cn>

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 GRB 111210A (Siegel  et al., GCN 12650)
with Xinglong TNT telescope at 21:16:27 (UT), about 6.67 h  after 
the burst.  14 R-band images were obtained. 
No new source was detected in the combined R band image within 
the errorbox of XRT position. The upper limit was estimated 
to be about 19.5 mag derived from USNO B1.0 R2 mag. 

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