GCN Circular 2050
Subject
GRB030329: Optical observations
Event
Date
2003-03-31T20:37:36Z (23 years ago)
From
Vasilij Rumjantsev at CrAO <rum@crao.crimea.ua>
E.Pavlenko, V.Rumyantsev, O.Antoniuk, N.Primak (CrAO) and A.Pozanenko (IKI)
report:
We continue to monitor the OT of GRB030329 (GCN 2005, 2028).
The OT found by Peterson and Price (GCN 1985) was imaged Cassegrain 38-cm
telescope of CrAO. Several 240 sec. exposures in R (Johnson) spectral band
were obtained. Based on filed photometry by A. Henden (GCN 2023) we
estimate the OT magnitude as
Mid Time (UT) exposure OT
March, 31 17:50:40 240 sec 16.92 +/-0.04
Taking into account R=16.8 +/- 0.1 at 18:43 obtained by A. Zeh, et al.
(GCN 2048) one may suggest that light curve of OT starts new episode of
re-brightening or flattering is still continuing.
Detailed calibration and observations are continuing.