GCN Circular 14458
Subject
GRB 130427A: Weihai optical observations
Date
2013-04-27T13:08:24Z (11 years ago)
From
Dong Xu at DARK/NBI <dong.dark@gmail.com>
D. Xu (DARK/NBI), C. Cao, S.-M. Hu, C.-M. Zhang (SDU) report:
We observed the field of GRB 130427A (Maselli et al., GCN 14448) with
the 1m telescope located in Weihai, Shandong Province, China. A series
of I-, R-, V-, and B-band frames were obtained, and observations are
still ongoing.
Although under quite much cloud, at the afterglow position (Elenin et
al., GCN 14450; Perley, GCN 14451) we detect the optical counterpart
with R=15.5 mag, with a median time of 4.178 hr after the BAT trigger
and calibrated with nearby USNO B1 stars.