GCN Circular 12682
Subject
GRB 111215A : Xinglong TNT upper limit
Date
2011-12-15T15:38:37Z (12 years ago)
From
L.P. Xin at NAOC <xlp@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 111215A ( Oates et al., GCN 12681)
with Xinglong TNT telescope at 14:20:23 (UT), about 16.25 min after
the burst. 30 R-band images were obtained. The exposure time is 60 sec
for each frame.
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 18.0 mag derived from USNO B1.0 R2 mag,
at the mean time of 32.75 min after the burst.
This message may be cited.
For more information about Xinglong GRBs Follow-up
observations, please visit the website:
http://www.xinglong-naoc.org:8080/grb/index.html"