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GCN Circular 3207

GRB 050408: Optical limit at 20 min after the burst
2005-04-09T12:27:01Z (19 years ago)
Yuji Urata at RIKEN <>
T. Mizuno, Y. Arai, H. Yamagishi (Tokyo Gakugei Univ.), 
T. Soyano (Kiso observatory), Y. Urata, T. Tamagawa(RIKEN),
K.Y. Huang(NCU) on behalf of EAFON report,

" We have imaged the entire error region of GRB 050408 (GCN3189) with
1.05m Schmidt telescope at Kiso observatory, Japan in R band.
Utilizing HETE-2 GCN alert, the observation was started at 16:42 UT
(20 min after the burst) and lasted to 1 hour.  There is no optical
emission from the optical afterglow (GCN 3192, GCN 3196) down to a
limiting magnitude of R=19.1 as estimated using USNO B1.0 catalog.

This message may be cited."
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