TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  3274
SUBJECT: GRB050416: Maidanak optical observations
DATE:    05/04/16 17:45:24 GMT
FROM:    Alexei Pozanenko at IKI, Moscow  <apozanen@iki.rssi.ru>

B. Kahharov, M. Ibrahimov,  D. Sharapov (MAO), A.Pozanenko (IKI)
V.Rumyantsev (CrAO),  G.Beskin (SAO) on behalf of larger collaboration
report:

We observed the  Swift GRB050416  (Sakamoto et al. GCN3264) with 1.5m
telescope of  the Maidanak Astronomical Observatory (MAO), Uzbekistan  The
observation started at (UT) 15:34 , April 16 in R and B bands.  We found a
source at the position afterglow (Cenko & Fox GCN3265).   A preliminary
R-photometry of first frames against of USNO-B1.0 Catalog is the following:

Mean time    Exposure    Mag.
(UT)            (s)

15:44         3x300     20.85 +/- 0.12

Observation is continuing.