GCN Circular 2191
Subject
GRB 030329, BVRI photometry
Date
2003-05-02T01:07:12Z (22 years ago)
From
Alexei Pozanenko at IKI, Moscow <apozanen@iki.rssi.ru>
M.A. Ibrahimov, I.M. Asfandiyarov, B.B. Kahharov (UBAI), A.Pozanenko (IKI),
V.Rumyantsev (CrAO), G.Beskin (SAO) on behalf of large collaboration
report:
We have observed the OT GRB030329 found by B.Peterson and P.Price (GCN 1985)
���� 1.5m telescope of Mt.Maidanak High-altitude Observatory (UBAI).
Several BVRI Bessel images were obtained on April 20, 25 and 27. The seeing
on Apr.25 was in range of 1-1.5 arcsec, and on Apr.27 is less than 1 arcsec
for all filters. Based on filed photometry by A. Henden (GCN 2082) we
estimate the OT magnitudes:
Mid time exposure filter mag err
UT, Apr. sec
20.664 1200 B 21.09 0.10
20.648 1200 R 19.91 0.06
25.745 2400 B 21.83 0.10
25.776 1800 V 20.76 0.08
25.723 1800 R 20.13 0.05
25.799 1800 I 20.01 0.11
27.731 2100 B 21.62 0.12
27.731 1500 V 20.94 0.11
27.731 2400 R 20.24 0.05
27.731 1500 I 19.70 0.10
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