TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2045 SUBJECT: GRB030329 - OT brightens DATE: 03/03/31 11:22:57 GMT FROM: Eran Ofek at Tel Aviv U. Y. Lipkin, E. O. Ofek, A. Gal-Yam, E. M. Leibowitz, H. Mendelson (Wise observatory, TAU) report: Observations of GRB 030329 (HETE trigger #2652, Ricker et al., GCN 1997) with the TEK 1K CCD mounted on the 1-meter telescope of Wise Observatory, Israel revealed that starting approximately March 30 21:00 UT, the OT brightened. The light curve, decaying with a power-law index alpha=0.7 (Lipkin et al. GCN 2034), reached a minimum R-band magnitude of about 16.45 at approximately 21:00 UT. Over the next three hours the OT brightened, reaching R=16.25 at approximately March 31.0 UT, consistent with later observations by Stanek et al. (GCN 2041).