TITLE: GCN CIRCULAR NUMBER: 2074 SUBJECT: GRB030329: Optical observations at Teramo DATE: 03/04/02 16:58:34 GMT FROM: Elisabetta Maiorano at U.of Bologna,Italy M. Cantiello, M. Dolci (INAF - Obs. of Teramo), E. Maiorano (Univ. Bologna & IASF/CNR, Bologna), N. Masetti, E. Palazzi (IASF/CNR, Bologna), E. Brocato (INAF - Obs. of Teramo) report: "We have obtained BVRI images of the OT (Peterson & Price, GCN 1985) of GRB030329 (Vanderspek et al., GCN 1997) with the 0.72-m TNT telescope of the Astronomical Observatory of Teramo (Italy). The average seeing was 4 arcsec. The OT was well detected in all bands; we measure for it the following BVRI magnitudes using field stars calibrated by Henden (GCN 2023): mid-exposure exptime filter mag err time (UT) (s) ------------------------------------------------------- Apr. 1.824 1200 R 17.02 0.02 Apr. 1.911 1800 V 17.53 0.03 Apr. 1.966 2400 B 18.01 0.04 Apr. 1.989 1200 I 16.70 0.03 Apr. 2.055 1200 R 17.16 0.03 The comparison between the two R-band magnitude measurements shows that the OT has possibly faded across our observing run. This message is citeable."