[vsnet-grb-info 424] GRB021004: optical observations at Nyrola

[GCN Circulars <gcncirc@lheawww.gsfc.nasa.gov>]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  1570
SUBJECT: GRB021004: optical observations at Nyrola
DATE:    02/10/04 22:10:45 GMT
FROM:    Arto Oksanen at Nyrola Obs., Finland  <oksanen@nyrola.jklsirius.fi>

A. Oksanen and M. Aho (Jyvaskylan Sirius ry)
report on behalf of AAVSO International GRB Network:

We have observed the optical afterglow of GRB021004 (HETE Trigger 2380)
as reported by Fox et al. (GCN 1564) with the 16-inch Meade LX200
telescope of Nyrola observatory in Finland.

Using the same R-band photometric zero-point as Fox et. al. (GCN 1564),
we find object magnitude as Rc=17.7 at epoch of October 4, 2002 19:52 UT.

Further observations and image calibration is in progress.

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