GCN Circular 24907
Subject
GRB 190627A : Xinglong 2.16m optical observation
Date
2019-06-29T16:06:41Z (5 years ago)
From
Liping Xin at NAOC, SVOM <xlp@nao.cas.cn>
L. P. Xin, J. J. Ren, X. H, Han, G. W. Li, R. S. Zhang, J. Wang,
J. Y. Wei, Y. G. Yang, E. W. Liang, X. G. Wang, H. L. Li,
X. M. Lu, L. Huang, H. B. Cai, Y. L. Qiu, Y. Xu,
Y. J. Xiao, Y. T. Zheng, C. Wu, J. S. Deng, D. W. Xu,
D. Turpin, W. L. Dong, P. P. Zhang report:
We observed GRB 190627A (Sonbas et al., GCN 24888 ) using the
Xinglong-2.16m equipped with the BFOSC camera. Observations
were carried out from 13:46:06 to 14:06:29 UT on 2019-06-29,
5*300sec R band images were obtained.
The optical afterglow (Siegel & Sonbas, GCN 24889,
Lipunov et al., GCN Circ 24895; Morris et al., GCN Circ 24894;
Leonini et al., GCN Circ 24893; Pozaneko et al., GCN Circ 24892;
Pozanenko et al. GCN Circ 24900; Kann et al., GCN Circ 24901;
Blazek et al., GCN Circ 24902; Jelinek & Strobl GCN Circ 24903;
Malesani et al. GCN Circ 24904, Mao et al., GCN Circ 24896, 24905)
was marginal detected in our stacked image with a magnitude of
R=20.5+/-0.2 mag at the mid time of about 2.1 days after the burst.
The photometry is calibrated with nearby USNO B1.0 stars