GCN Circular 28324
Subject
GRB 200829A: Nanshan/NEXT optical observations
Event
Date
2020-08-30T15:27:43Z (5 years ago)
From
Dong Xu at NAOC/CAS <dxu@nao.cas.cn>
Z.P. Zhu, S.Y Fu, X. Liu, D. Xu (NAOC), X. Gao (Urumqi No.1 Senior High
School), X. Zhang, J.Z. Liu (XAO) report:
We observed the field of GRB 200829A (Siegel et al., GCN 28307) using
the NEXT-0.6m
telescope located at Nanshan, Xinjiang, China. We obtained a series of
frames in the Sloan g-/r-/i- bands, starting at 19:55:23 UT on
2020-08-29, i.e., 5.93 hr after the BAT trigger.
The GRB optical afterglow (e.g., Pozanenko et al., GCN 28308; Kuin et
al., GCN 28311; Ursi et al., GCN 28314; Lipunov et al., GCN 28315; Vinko
et al., GCN 28316; Hentunen & Nissinen, GCN 28318; Moskvitin et al., GCN
28322) is clearly detected in our images.
Preliminary photometric measurements are as follows:
Filter T-mid(hr) Mag Mag_err
SDSS-g 6.72 18.89 0.04
SDSS-r 5.98 18.77 0.04
SDSS-i 6.40 18.50 0.05
calibrated with nearby Pan-STARRS stars.