TITLE:   GCN CIRCULAR
NUMBER:  13847
SUBJECT: GRB121011A : Xinglong TNT optical observation
DATE:    12/10/11 12:35:21 GMT
FROM:    L.P. Xin at NAOC  <xlp@bao.ac.cn>

L. P. Xin,  Y. L. Qiu,  J. Y. Wei,  J. Wang,  J. S. Deng, 
C. Wu,  X. H. Han on behalf of EAFON report:

We began to observe GRB121011A ( Racusin  et al., GCN 13845 ) 
with Xinglong TNT telescope at  11:17:24(UT), about 2 min after 
the burst. A series of white and R-band images were obtained. 
The OT reported by (Racusin  et al., GCN 13845; Kuroda et al. 13845 ) 
was detected in all images.  The brightness of this OT was about 
R=16.8 mag at  10 min after the burst, calibrated by USNO B1.0 R2 mag.
The brightness is consistent with the report by Kuroda et al. 13845.

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