GCN Circular 20012
Subject
GRB 161004A: Maidanak optical observations
Event
Date
2016-10-08T00:26:58Z (10 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Pozanenko (IKI), B. Hafizov (UBAI), A. Volnova
(IKI), O. Burhonov (UBAI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of GRB 161004A (Evans et al., GCN 19979) with
AZT-22 telescope of Maidanak observatory equipped with SNUCAM in R
filter starting on Oct. 04 (UT) 14:25:10. We clearly detected optical
afterglow (Evans et al., GCN 19979; Breeveld et al., GCN 19984;
Mazaeva et al., GRB 20011). Preliminary photometry of the afterglow in
a combined image is following
Date UT start t-T0 Filter Exp. OT Err. UL
(mid, days) (s)
2016-10-04 14:25:10 0.06981 R 15*120 22.0 0.15 22.7
Photometry is based on nearby SDSS-DR9 stars used in GCN 19980.