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GCN Circular 1570

Subject
GRB021004: optical observations at Nyrola
Date
2002-10-04T22:10:45Z (22 years ago)
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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