GCN Circular 13842
Subject
GRB 120927A: optical upper limit
Event
Date
2012-10-05T18:23:19Z (14 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
M. Andreev, A. Sergeev (Terskol Branch of Institute of Astronomy), A.
Pozanenko (IKI) on behalf of larger GRB follow up collaboration report:
We observed field of the Swift GRB 120927A (Maselli et al. GCN 13822)
with Zeiss-600 telescope of Mt.Terskol observatory starting on Sep. 28 (UT)
01:31:05. Several unfiltered images were taken under favorable weather
conditions. We do not detect any sources in the enhanced XRT error circle
(Beardmore et al. GCN 13824). Photometry is based on nearby USNO-B1.0 (R2)
stars:
T0+, Filter Exposure, OT, UL (3 sigma)
mid, d (s)
0.1292 none 30x60 n/d 22.0