TITLE: GCN GRB OBSERVATION REPORT NUMBER: 2060 SUBJECT: GRB030329 - OT rebrightens DATE: 03/04/01 07:21:58 GMT FROM: Eran Ofek at Tel Aviv U. Y. Lipkin, E. M. Leibowitz, E. O. Ofek, S. Kaspi, A. Gal-Yam, H. Mendelson (Wise observatory, TAU) report: We continue our time-resolved photometry of GRB 030329. Following a brief standstill (Lipkin et al, GCN 2054), the OT decayed in brightness from March 31 20:00 to March 31 23:15, reaching a minimum of approximately R=16.9. At that time the trend reversed direction again and from 23:15 to 01:30 UT we detected a rebrightening of the OT by approximately 0.1 magnitude.