GCN Circular 28786
Subject
GRB 201026A: NanShan/NEXT-0.6m optical upper limit
Date
2020-10-27T01:11:02Z (4 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
Z.P. Zhu (NAOC, HUST), S.Y. Fu, X. Liu, D. Xu (NAOC), X. Gao (Urumqi
No.1 Senior High School), J.Z. Liu (XAO) report:
We observed the field of GRB 201026A (Cenko et al., GCN 28784) using the
NEXT-0.6m optical telescope located at Nanshan, Xinjiang, China.
Observations automatically started at 22:49:35 UT on 2020-10-26, i.e.,
12 min after the BAT trigger. We obtained 3x40 s, 4x60 s and 12x90 s
frames in the Sloan r-filter.
No new optical source is detected in our stacked image at the XRT
position, down to a limiting magnitude of r = 20.5, calibrated with the
nearby Pan-STARRS field.