GCN Circular 15622
Subject
GRB 131227A: Xinglong optical observations
Date
2013-12-27T16:02:49Z (11 years ago)
From
Dong Xu at DARK/NBI <dong.dark@gmail.com>
D. Xu (DARK/NBI), T.-M. Zhang, L.-P. Xin, F. Xiao (NAOC) report:
We observed the field of GRB 131227A (Oates et al., GCN 15616) using
the 2.16m Xinglong telescope, equipped with BFOSC and located in
Heibei, China. We obtained 2x600s R-band images with a mean time of
9.086 hr after the BAT trigger.
At the afterglow position (Zheng et al., GCN 15617), which is within
the XRT error circle (Evans & Goad, GCN 15618), the afterglow has
decayed to have R>21.2 mag, calibrated with nearby USNO B1 field.