GCN Circular 18416
Subject
GRB 151006A: Mondy optical upper limit
Date
2015-10-11T10:03:30Z (9 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
E. Mazaeva (IKI), E. Klunko (ISTP), A. Volnova (IKI), I. Korobtsev
(ISTP), A. Pozanenko (IKI) report on behalf of larger GRB follow-up
collaboration:
We observed the field of Swift GRB 151006A (Kocevski et al., GCN 18398)
with AZT-33IK telescope of Sayan observatory (Mondy) starting on Oct. 18
(UT) 16:50:47. We obtained several images in R-filter of 120 s exposure.
Within XRT error circle (Goad et al., GCN 18403) we do not detect
any optical source. Upper limit is following
Date UT start t-T0 Filter Exp. UL (3 sigma)
(mid, days) (s)
2015-10-06 16:50:47 0.31306 R 35*120 22.4
Photometry is based on USNO-B1.0 stars:
USNO-B1.0_id R2
1604-0085829 18.23
1604-0085812 16.90