GCN Circular 18182
Subject
GRB 150818A: Mondy optical observations
Date
2015-08-20T17:24:54Z (9 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), E. Klunko (ISTP), A. Volnova (IKI), I. Korobtsev (ISTP),
A. Pozanenko (IKI) report on behalf of larger GRB follow-up collaboration:
We continue observations of the of Swift GRB 150818A (D'Elia et al., GCNC
18152) with AZT-33IK telescope of Sayan observatory (Mondy). We obtained
several images in R-filter starting on Aug., 19 (UT) 15:33:10. The
optical transient (Marshall et al., GCN 18155; McCauley et al., GCN 18161;
Schulze et al., GCN 18164; Mazaeva et al., GCN 18175) is clearly visible.
Preliminary photometry of the optical transient is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2015-08-19 15:33:10 1.18517 R 30*120 21.0 0.1
Photometry is based on USNO-B1.0 stars referenced in (Mazaeva et al., GCN
18175)