GCN Circular 23477
Subject
GRB 181201A: optical observations in SAAO
Date
2018-12-01T20:06:16Z (5 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), E. Mazaeva (IKI), D. Buckley (SAAO), A. Pozanenko
(IKI) report on behalf of IKI-FuN follow-up collaboration:
We observed the field of the INTEGRAL GRB 181201A (Mereghetti et al.,
GCN 23469) with 1m telescopes of SAOO observatory. Observation started
on Dec. 01 (UT) 18:34:35 in g'Ri'-filters. We detected optical
afterglow (Podesta et al., GCN 23470; Kong GCN 23475). Preliminary
photometry is following
Date UT start t-T0 Filter Exp. OT Err.
(mid, days) (s)
2018-12-01 18:34:35 0.66950 g' 5*180 17.86 0.02
2018-12-01 18:52:05 0.67992 R 5*120 17.38 0.02
2018-12-01 19:02:35 0.68721 i' 5*120 17.32 0.02
The photometry is based on SDSS DR12 nearby stars.