TITLE:   GCN CIRCULAR
NUMBER:  16398
SUBJECT: GRB 140606B / iPTF 14bfu: AAO optical observations
DATE:    14/06/14 14:21:20 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>

A. Volnova (IKI), R. Inasaridze (AAO), O. Kvaratskhelia (AAO), V.
Ayvazian (AAO), Yu. Krugly (IA KhNU), I. Molotov (KIAM), A. Pozanenko
(IKI) report on behalf of larger GRB follow-up collaboration:

We observed a field of the GBM GRB 140606B / iPTF 14bfu (Singer et al., 
GCN 16360) with AS-32 (0.7m) telescope of Abastumani Observatory 
starting on June, 07 (UT) 21:40:06. We obtained several unfiltered 
frames with exposure of each frame of 120 s. The  optical transient   is 
well detected on the stacked image.

A photometry is based on nearby USNO-B1.0 stars:

date       UT start   t-T0       Filter  Exp.    OT        err
                      (mid, days)         (s)

2014-06-07 21:40:06  1.82039     None    46*120  21.95 +/- 0.20