TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4668
SUBJECT: GRB 060204C: OSN limits
DATE:    06/02/05 00:38:48 GMT
FROM:    Martin Jelinek at Inst.Astrophys.Andalucia,Granada  <mates@iaa.es>

Martin Jelinek, D. Martinez, S. Guziy, S. Vitek 
and A. de Ugarte Postigo (IAA Granada, Spain)

report:

We imaged the error box of Swift GRB060204C (Grupe et al.  GCN
4663) with the 1.5m telescope at Observatorio Sierra Nevada.
We do not detect any new or variable source within the BAT
error box down to the limiting magnitude I=21.0 at an image
obtained 38minutes after the GRB.  The image is calibrated
against USNO-B1.0 I2 magnitude. Further observations are in
progress.

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