GCN Circular 14861
Subject
GRB 130608A: ISON-Kislovodsk optical upper limit
Event
Date
2013-06-10T20:01:43Z (12 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
A. Volnova (IKI), V. Linkov (ISON), M.Suvorov (ISON), V. Nevskiy (ISON),
D. Ivanov (ISON), I. Molotov (KIAM), A. Pozanenko (IKI), report on
behalf of larger collaboration:
We observed the field of GRB 130608A (Krimm et al., GCN 14827) with
SANTEL-400AN (0.4-m f/3) telescope of ISON-Kislovodsk observatory.
Observations started on Jun. 09 (UT) 00:01:42. We obtained several
unfiltered images of 60 s exposure. We do not detect any source within
enhanced XRT error circle (Beardmore et al., GCN 14832). Preliminary
photometry of combined image is based on USNO-B1.0 (R2) nearby stars:
T_start, T0+, Exp, Filter, UL (3 sigma)
(UT) mid (d) (s)
2013-06-09T00:01:42 0.04170 960 none >18.1