TITLE:   GCN CIRCULAR
NUMBER:  728
SUBJECT: GRB000620, optical observations
DATE:    00/06/22 11:08:20 GMT
FROM:    Nicola Masetti at ITeSRE,CNR,Bologna  <masetti@tesre.bo.cnr.it>

N. Masetti, E. Palazzi, E. Pian, F. Frontera (ITESRE, CNR, Bologna),
M. Tichy, J. Ticha (Klet Observatory), R. Hudec (ASU, Ondrejov) and
G. Gandolfi (IAS, CNR, Rome), on behalf of a larger collaboration, 
report: 


"Unfiltered optical images of the field of GRB000620 (GCN #716), were
acquired on 2000 June 20.91 with the 0.57-meter telescope (+CCD camera
SBIG ST-8) of the Klet Observatory, Czech Republic, for a total exposure
time of 600 sec. The seeing was around 3 arcsec as the field can only be
observed at high airmass (~2.5) in this period.

No new or noticeable object down to a magnitude ~20 is detected inside 
the BeppoSAX+IPN error box (GCNs #718, #723) when we compare our image
with the DSS-II Digital Sky Survey.".


This message can be cited.