{
  "bibcode": "2000GCN...728....1M",
  "body": "N. Masetti, E. Palazzi, E. Pian, F. Frontera (ITESRE, CNR, Bologna),\nM. Tichy, J. Ticha (Klet Observatory), R. Hudec (ASU, Ondrejov) and\nG. Gandolfi (IAS, CNR, Rome), on behalf of a larger collaboration, \nreport: \n\n\n\"Unfiltered optical images of the field of GRB000620 (GCN #716), were\nacquired on 2000 June 20.91 with the 0.57-meter telescope (+CCD camera\nSBIG ST-8) of the Klet Observatory, Czech Republic, for a total exposure\ntime of 600 sec. The seeing was around 3 arcsec as the field can only be\nobserved at high airmass (~2.5) in this period.\n\nNo new or noticeable object down to a magnitude ~20 is detected inside \nthe BeppoSAX+IPN error box (GCNs #718, #723) when we compare our image\nwith the DSS-II Digital Sky Survey.\".\n\n\nThis message can be cited.",
  "circularId": 728,
  "createdOn": 961672100000,
  "email": "masetti@tesre.bo.cnr.it",
  "subject": "GRB000620, optical observations",
  "submitter": "Nicola Masetti at ITeSRE,CNR,Bologna  <masetti@tesre.bo.cnr.it>",
  "eventId": "GRB 000620"
}