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GCN Circular 4990

GRB060418: optical observations
2006-04-21T14:00:18Z (18 years ago)
Alexei Pozanenko at IKI, Moscow <>
B. Hafizov (MAO),   D. Sharapov (MAO and NOT, La Palma),  A. Pozanenko
(IKI),  M. Ibrahimov (MAO) on behalf of larger GRB follow up collaboration

We observed the afterglow of  GRB060418 (Falcone et al. GCN 4966) with 1.5m
telescope of  Maidanak Astronomical Observatory (MAO) in BRI-bands on April
18. A series of BRI images (B: 8x180s, R: 7x120s, I:  9x120s) were taken on
April 18 (UT)  19:54  -  21:07 and  9x120s  I-images were taken between
22:14 - 22:37. We detect OT (Falcone et al. GCN 4966) on single images in I
and R;   preliminary OT brightness estimation of the first I-image
(UT=19:54) is ~20.5. Data reduction is continuing.

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