GCN Circular 17169
Subject
GRB141212A: xinglong TNT upper limit
Date
2014-12-12T21:58:48Z (9 years ago)
From
L.P. Xin at NAOC <xlp@bao.ac.cn>
L. P. Xin, T. M. Zhang, J. Y. Wei, Y. L. Qiu, J. S. Deng,
J. Wang, X. H. Han and C. Wu on behalf of EAFON report:
We began to observe GRB 141212A (Ukwatta eta l., GCN 17158)
with Xinglong 0.8-m TNT telescope at 2014-12-12, 12:14:40(UT),
about 39 sec the burst.
In any single W-band frame or coadded image, no any new
optical transient was detected within XRT circle
(Ukwatta eta l., GCN 17158; Osborne et al, GCN 17164 )
down to 3 sigma limit of R~20 mag at the mid-time of 4 min
after the burst, calibrated by the nearby USNO B1.0 R2 mag.
The message may be cited.