TITLE:   GCN CIRCULAR
NUMBER:  2260
SUBJECT: GRB 030329: optical observations
DATE:    03/05/31 09:07:43 GMT
FROM:    Rodion Burenin at IKI, Moscow  <rodion@hea.iki.rssi.ru>

R. Burenin, R. Sunyaev, M. Pavlinsky, D. Denissenko, O. Terekhov,
A. Tkachenko (IKI); Z. Aslan, O.Golbasi, I. Khamitov (TUG); M.A. Alpar
(SU); U. Kiziloglu, A. Baykal (METU); I. Bikmaev, N. Sakhibullin, V.
Suleymanov (KSU)


report:

We observed the GRB 030329 afterglow with 1.5-m Russian-Turkish
Telescope RTT150 at Bakyrlytepe, Turkey. Our data for May 20 -- 28 are
consistent with constant flux of the OT. Using the photometry by Henden
(GCN 2082) we measured the following R magnitudes for the OT:

Date  UT     R     err
05-20 21:45  21.65 0.28
05-21 21:20  21.41 0.06
05-22 20:30  21.60 0.08
05-24 21:15  21.40 0.10
05-28 21:10  21.55 0.06

This message may be cited.