GCN Circular 22392
Subject
GRB 180205A: Xinglong TNT optical observation
Date
2018-02-06T02:43:28Z (6 years ago)
From
L.P. Xin at NAOC <xlp@nao.cas.cn>
L. P. Xin, F. Q. Pi, J. Y. Wei, Y. L. Qiu, J. S. Deng,
J. Wang, X. H. Han, X. M. Meng, C. Wu, D. TURPIN, H. L. Li report:
We began to observe GRB 180205A (Evens et al., GCN 22381)
with Xinglong 0.8-m TNT telescope, China, at 2018-02-05, 16:11:42(UT),
about 12.6 hours the burst.
We obtained several R-band images with an exposure time of 300 sec for each frame.
The optical afterglow (Evens et al., GCN 22381; Zheng et al., GCN 22382;
Bolmer et al., GCN 22383, 22391; Tanvir et al., GCN 22384; Volnova et al., GCN 22387,
Wiersema et al., GCN 22388; Falcon et al., 22390 ) is clearly detected in our stacked image with 5*300 sec.
The brightness is estimated to be about R~19.97 mag calibrated
by USNO B1.0 R2 mag at about 12.7 hours after the burst,
We acknowledge the excellent support from Xinglong staff Miao Zhang.