GCN Circular 2074
Subject
GRB030329: Optical observations at Teramo
Date
2003-04-02T16:58:34Z (21 years ago)
From
Elisabetta Maiorano at U.of Bologna,Italy <maiorano@bo.iasf.cnr.it>
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."