GCN Circular 13617
Subject
GRB 120803A: optical upper limit
Event
Date
2012-08-10T18:19:19Z (14 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
L. Elenin (KIAM), A. Volnova (SAI MSU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:
We observed the field of possible Swift GRB 120803A (Racusin et al., GCN
13565; Evans et al., GCN 13615) with 0.45-m telescope of ISON-NM
observatory starting on Aug. 03 (UT) 07:24:37. We took several
unfiltered images of 30 s exposures. Within XRT error circle (Evans et
al., GCN 13569) we do not detect any new source. A photometry of co-added
frames is based on the USNO-B1.0 (R2) nearby stars is following:
T_start, T0+, Exposure, UL(3 sigma),
(UT) mid, d (s)
07:24:37 0.00258 4x30 17.3
07:24:37 0.01486 45x30 18.0