GCN Circular 15189
Subject
GRB 130831A: optical observation in Chuguev AO
Date
2013-09-07T23:56:01Z (11 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), Yu. Krugly (IA KhNU), I. Slyusarev (IA KhNU), I.
Molotov (KIAM), A. Pozanenko (IKI) report on behalf of larger GRB
follow-up collaboration:
We observed the afterglow (Hagen et al., GCN 15139; Guidorzi et al.,
GCN 15140) of the Swift GRB 130831A (Hagen et al., GCN 15139) with
AZT-8 (0.7m) telescope of Institute of Astronomy, Kharkiv National
University in R filter starting on Sep. 01 (UT) 19:37:49. A preliminary
photometry of combined images is based on SDSS DR9 stars
T_start T0+ Filter, Exposure, OT, OT_err
(UT) (mid, d) (s)
2013-09-01T19:37:49 1.29474 R 28x120 21.26 0.07
Reference stars SDSS-DR9, (R mag, transformation by Lupton 2005)
N SDSS id R(Lupton)errR
1 J235443.71+292539.3 13.491 0.016
2 J235438.60+292547.3 14.136 0.015
3 J235423.64+292452.8 17.120 0.016