GCN Circular 17718
Subject
GRB 150413A: ISON-Ussuriysk optical observations
Date
2015-04-17T21:33:14Z (10 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), A. Stepura (UAFO, ISON), A. Matkin (UAFO, ISON), A.
Volnova (IKI), I. Molotov (KIAM), A. Pozanenko (IKI) report on behalf of
larger GRB follow-up collaboration:
We observed the field of the GRB 150413A (Markwardt et al., GCN 17688)
with SANTEL-650 (0.65m) telescope of UAFO/ISON-Ussuriysk observatory
sstarting on Apr., 14 (UT) 11:48:05. The afterglow (Ivanov et al., GCN
17689) is clearly detected in a combined image. Preliminary photometry the
unfiltered combined image is following
Date UT start t-T0 Filter Exp. OT OT_err
(mid, days) (s)
2015-04-14 11:48:05 0.95859 none 117*60 20.35 0.15
The photometry is based on nearby USNO-B1.0 stars