TITLE:   GCN CIRCULAR
NUMBER:  12844
SUBJECT: GRB 120116A: Mondy optical observations
DATE:    12/01/17 18:12:05 GMT
FROM:    Alina Volnova at SAI MSU  <alinusss@gmail.com>

A. Volnova (SAI MSU), I. Korobtsev, E. Klunko (ISTP), A.Pozanenko
(IKI) on behalf of larger GRB follow up collaboration �report:

We observed the field of the Swift GRB 120116A (Melandri et al., GCN
12834) with AZT-33IK telescope of Sayan observatory (Mondy) on Jan, 16
between (UT) 18:49:24 - 19:20:20, i.e. starting 40 minutes after the
trigger. We took several series of 60 s exposures in R-filter. Within
the XRT error circle (Melandri et al., GCN 12834) �we do not detect
any source, in particular we do not detect the source reported by
Levan and Tanvir (GCN 12843). The photometry is based on the USNO-B1.0
1239-0020213 star (RA=01 05 04.50, Dec=+33 55 37.7) assuming R2=16.36.

UT_start, �T0+, � � � �Filter, �Exposure, � �OT � � � uplim,
� � � � � � � �d � � � � � � � � � � � � � � � � � � � � � � � � � � � 3 sigma
18:49:24 � 0.03815 �R � � �  �29x60 � � � � n/d � �   19.5