GCN Circular 27027
Subject
GRB 200205B: Chilescope optical observations
Event
Date
2020-02-09T13:51:47Z (6 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Pozanenko (IKI), M. Krugov (AFIF), A. Volnova
(IKI), S. Belkin (IKI) report on behalf of IKI-FuN follow-up collaboration:
We observed the Swift GRB 200205B (Evans et al., GCN 26993) with
Chilescope RC-1000 started on Feb. 7 (UT) 03:04:55 in r'-filter. We
marginally detect optical afterglow (Lipunov et al., GCN 26991; Evans et
al., GCN 26993; Strausbaugh et al., GCN 26995; Vielfaure et al., GCN
26998; Malesani et al., GCN 27004; Simpson et al., GCN 27006).
Preliminary photometry is following.
Date UT start MJD_mid Filter Exp. OT(AB) S/N UL
(mid, days) (s)
2020-02-07 03:04:55 1.33613 r' 2*1200 22.2 2.0 22.0
The photometry is based on nearby stars from the SkyMapper catalog
SkyMapper_id r
293365688 17.550
293359963 16.213
293359881 15.816
293365677 17.659