GCN Circular 28226
Subject
GRB 200803A: Chilescope optical upper limit
Event
Date
2020-08-07T22:07:23Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
S. Belkin (IKI), A. Pozanenko (IKI), M. Krugov (AFIF), A. Volnova
(IKI), E. Mazaeva (IKI) report on behalf of IKI-FuN follow-up collaboration:
We observed the GRB 200803A (Fermi GBM Team, GCN 28196; Hamburg et al.,
GCN 28206) with Chilescope RC-1000 starting on 2020-08-05 (UT) 03:53:45
in r'-filter. We did not detect optical afterglow (Lipunov et al., GCN
28202).
Preliminary photometry is following.
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2020-08-05 03:53:45 2.03425 r' 6*600 n/d n/d 21.5
The photometry is based on nearby USNO-B1.0 stars
Ref.stars
USNO-B1.0_id R2
0270-0863045 16.4
0270-0862955 15.5
0271-0884796 15.0