GCN Circular 2067
Subject
GRB030329: Optical observations
Event
Date
2003-04-02T01:25:34Z (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, 2050).
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 (R)
Apr 1.8754 4x240 sec 17.07+/-0.05
Also we refined our estimations of OT within March 29-31.
Cassegrain 38-cm (CCD SBIG ST-7):
JD Hel UT V R
52728.2526 29.7526 - 14.03 +/- 0.03
52728.4934 29.9934 15.15 +/- 0.02 -
52728.5072 30.0072 15.22 +/- 0.04 -
52729.2689 30.7689 - 16.44 +/- 0.04
52729.4301 30.9301 - 16.40 +/- 0.06
52730.2435 31.7435 - 16.92 +/- 0.04
52730.3868 31.8868 - 16.90 +/- 0.08
52730.4023 31.9023 - 16.91 +/- 0.06
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