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GCN Circular 2146

GRB030329: Optical Observations
2003-04-18T06:19:46Z (21 years ago)
Vasilij Rumjantsev at CrAO <>
V.Rumyantsev,  E. Sergeeva (CrAO), V.Doroshenko (SAI MSU), 
E.Pavlenko, O.Antoniuk, N.Primak (CrAO), and A.Pozanenko (IKI) report:

We continue to monitor the OT of GRB030329.

Observations were made on April 8, 9, 10, 2003 in  R and I (Johnson)
spectral band with the 70-cm and 38-cm Cassegrain telescopes of CrAO.  Based
on filed photometry by A. Henden (GCN 2023)  we estimate the OT magnitude as

Mid time, UT    telescope exposure    mag    err

Apr.08.9284     K-380     20x300s   R 19.35  0.25
Apr.09.9179     AZT-8      8x150s   R 19.56  0.19
Apr.10.8462     AZT-8     10x120s   R 19.80  0.22
Apr.10.8615     AZT-8     10x120s   I 19.32  0.25

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