Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to https://gcn.nasa.gov.
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 11737

Subject
GRB 110210A: optical upper limit
Date
2011-02-16T09:14:17Z (13 years ago)
From
Alina Volnova at SAI MSU <alinusss@gmail.com>
A. Volnova (SAI MSU), Korobtsev (ISTP),  E. Klunko (ISTP),  A.
Pozanenko (IKI) on behalf of larger GRB follow up collaboration
report:

We observed the field of the Swift GRB 110210A (D'Elia et al., GCN
11687) with AZT-33IK telescope of Sayan observatory (Mondy) on Feb. 10
between (UT) 11:10 - 12:28 under poor weather conditions and mean
seeing of about ~2.3". We took several series with exposure of 60
seconds in R-band. In a stacked image we do not detect any source in
enhanced XRT error circle (Goad et al. GCN 11689). The upper limit (3
sigma) of the stacked image based on SDSS field star
J005218.01+0746740.1 (assuming R = 18.73) is the following:

T0+      Filter,   Exposure,      OT mag.,  UpperLimit
(mid, d)              (s)

0.08122  R      69x60               n/d           19.4
Looking for U.S. government information and services? Visit USA.gov