TITLE:   GCN CIRCULAR
NUMBER:  2299
SUBJECT: GRB030329: RTT150 optical observations
DATE:    03/07/15 10:24:50 GMT
FROM:    Irek Khamitov at TUG  <irekk@tug.tug.tubitak.gov.tr>

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

  Report:

  We observed the GRB 030329 target  with 1.5-m Russian-Turkish
Telescope RTT150 at Bakyrlytepe, Turkey, in June-July, 2003, by
using Andor CCD. Based on the photometry by Henden (GCN 2082) we 
measured the following Rc magnitudes for the target:

 Date        t-t0   Rc     dR
 2003-06-02 65.322 21.65  0.07
 2003-06-03 66.303 21.67  0.06
 2003-06-23 86.314 21.80  0.10
 2003-06-29 92.338 21.83  0.10
 2003-07-02 95.334 21.83  0.17
 2003-07-03 96.309 21.91: 0.28

  Although there is some indication of a systematic fading, the
errors are large for obvious reasons and we are already near the
limiting   magnitude at this high zenith distance. We will therefore 
discontinue the observations for this summer season.

  This message may be cited.