GCN Circular 18515
Subject
GRB 151027A : Xinglong TNT optical observation
Event
Date
2015-10-28T14:37:57Z (10 years ago)
From
L.P. Xin at NAOC <xlp@bao.ac.cn>
L. P. Xin, X. F. Wang, J. Y. Wei, Y. L. Qiu, J. S. Deng,
J. Wang, X. H. Han and C. Wu on behalf of EAFON report:
We observed GRB 151027A (Maselli et al., GCN 18478)
with Xinglong 0.8-m TNT telescope at 2015-10-27 and 2015-10-28.
The optical afterglow (Maselli et al., GCN 18478; Zheng & Filippenko
GCN 18479; Elenin et al., GCN 18480; Perley & Cenko GCN 18481; Xu et al, 18485;
Zhang et al., GCN 18513) was clearly detected in our multi-band images.
The brightness of the optical afterglow is decayed for about 2.5 mag in R-band
during our observations as shown in follows:
==============================
Date Time(UT) filter mag merr
2015-10-27 11:21:59 R 16.2 0.1
2015-10-28 11:04:00 R 18.7 0.1
==============================
Calibrated by the USNO B1.0 R2 mag
More observations are encouraged.
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