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[vsnet-grb-info 421] GRB021004: optical observations at Bisei

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1567
SUBJECT: GRB021004: optical observations at Bisei
DATE:    02/10/04 17:09:23 GMT
FROM:    Yuji Urata at RIKEN  <urata@crab.riken.go.jp>

K. Matsumoto (Okayama Univ.), T. Kawabata (BAO), K. Ayani (BAO), Y.
Urata (Titech / RIKEN) and H. Yamaoka (Kyushu Univ.) report:

We are observing the error circle of GRB021004 obtained by HETE-2
(Shirasaki et al. GCN 1565) with the Bisei Astronomical Observatory (BAO)
1.01-m telescope. We have confirmed the optical transient reported by
Fox (GCN 1564). The R-magnitude was about 16.0 at Oct. 4 14:13 UT. The
observation and more accurate photometry are in progress.

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