TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  3854
SUBJECT: GRB050820B at FRAM
DATE:    05/08/22 13:22:59 GMT
FROM:    Martin Jelinek at Inst.Astrophys.Andalucia,Granada  <mates@asu.cas.cz>

Martin Jelínek (IAA Granada, Spain),
Michael Prouza (FZU Praha, Czech Republic),
Petr Kubanek (ISDC Versiox, Switzerland  and ASU AV CR, Ondrejov),
Martin Nekola and Rene Hudec (ASU AV CR, Ondrejov, Czech Republic)

report:

Robotic telescope FRAM located near Malargue in Argentina has
observed the field of GRB050820B in semi-automatic mode
starting 1.31h after the GRB onset. No new optical source is
detected within the uncertainity region given by GCN3840
(Fenimore et. al.).  The 3-sigma limit of three coadded
exposures is R=15.3. An image can be seen at
http://lascaux.asu.cas.cz/~mates/050820B-fram.gif