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TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2001 SUBJECT: GRB 030329: optical observations DATE: 03/03/29 21:44:47 GMT FROM: Rodion Burenin at IKI, Moscow <rodion@hea.iki.rssi.ru> R. Burenin, D. Denissenko, M. Pavlinsky, R. Sunyaev, O. Terekhov, A. Tkachenko (IKI); Z. Aslan, K. Uluc, I. Khamitov (TUG); U. Kiziloglu, A. Alpar, A. Baykal (METU); I. Bikmaev, N. Sakhibullin, V. Suleymanov (KSU) report: Error box of GRB030329 (HETE Trigger #2652) was observed with 1.5-m Russian-Turkish Telescope RTT150 at Bakyrlytepe (TUBITAK National Observatory, Turkey) started at Mar 29.744 UT, appr. 6 hours after the burst. We confirm the presence of the optical transient (OT) reported by Peterson and Price (GCN 1985). In the beginning of our run the afterglow appear to have the following magnitudes: B=14.99, V=14.46, R=14.12, I=13.60, and is fading at a rate appr. 0.18 mag per hour in every filter. At 29.794 the OT has magnitudes: B=15.19, V=14.65, R=14.34, I=13.82. We will continue our observations as long as it will be possible. The absolute fluxes will be calibrated more accurately. The light curves will follow. This message may be cited.
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