GCN Circular 13960
Subject
GRB 121108A: Xinglong TNT upper limit
Event
Date
2012-11-09T12:22:18Z (13 years ago)
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 GRB121108A ( Ukwatta et al., GCN 13952 )
with Xinglong TNT telescope at 17:49:47 (UT), about 128s after
the burst. A series of white and R-band images were obtained.
No any optical counterpart was found in the X-ray errorbox
(Beardmore et al., GCN 13959). The 3 sigma upper limit is about 19.9
mag in R-band calibrated by USNO B1.0 R2 mag, at the mean
time of 58 min after the burst.
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