GCN Circular 1521
Subject
GRB 020812: optical observation at Kyoto University
Date
2002-08-23T10:39:22Z (22 years ago)
From
Taichi Kato at Kyoto U <tkato@kusastro.kyoto-u.ac.jp>
M. Uemura, R. Ishioka, T. Kato (Kyoto U) and H. Yamaoka (Kyushu U) report
on behalf of VSNET-grb collaboration:
"We have performed a full analysis of the unfiltered images of GRB
020812 field taken at Kyoto University. A 30-cm telescope observed
the central part of the on-board HETE WXM error box, and a 25-cm
telescope observed three fields of view, each of which covered a part
of HETE WXM error box (GCN 1468)
(http://www.rc.kyushu-u.ac.jp/~yamaoka/GRB020812/FOVkyoto.gif).
The limiting magnitudes are measured by compareing with USNO-A2.0 red
magnitudes.
FOV 25-cm 1 25-cm 2 25-cm 3 30-cm
epoch 11:36-13:25 13:27-13:57 13:57-15:32 11:40-13:26 Aug. 12 UT+
exp. 85 25.5 80 83.5 minutes
lim.mag 18.7 18.6 18.8 19.1 in R
By comparison with DSS 2 red image and Ouda images (GCN 1515),
no new source brighter than the limits nor notable variable is
detected."
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