GCN Circular 27081
Subject
GRB 200215A: Nanshan/NEXT optical upper limit
Date
2020-02-15T16:08:10Z (4 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
D. Xu, Z.P. Zhu, X. Liu, B.Y. Yu, Y. Ma (NAOC), X. Gao (Urumqi No.1
Senior High School) report:
We observed the field of GRB 200215A (Bernardini et al., GCN 27079)
using the NEXT 0.6m optical telescope located at Nanshan, Xinjiang,
China. Observations automatically started at 14:40:59 UT on 2002-02-15,
i.e., 88 s after the BAT trigger. We obtained 3x40 s, 4x60 s, and 5x90
s frames in the Sloan r-filter. Observations then ended due to
follow-ups of LIGO/Virgo S200213t.
No optical afterglow is detected in our images at the XRT position
(Bernardini et al., GCN 27079) down to a limiting magnitude of r~18.0,
calibrated with the nearby PanSTARRS field.