Skip to main content
Testing. You are viewing the public testing version of GCN. For the production version, go to
New Announcement Feature, Code of Conduct, Circular Revisions. See news and announcements

GCN Circular 741

GRB000630, optical observations
2000-07-01T16:34:13Z (24 years ago)
Nicola Masetti at ITeSRE,CNR,Bologna <>
N. Masetti, E. Pian, E. Palazzi (ITESRE, CNR, Bologna),
J. Ticha, M. Tichy (Klet Observatory) and R. Hudec (ASU, Ondrejov), 
on behalf of a larger collaboration, report: 

"Unfiltered optical images of the central part of the GRB000630 
error box (GCN #736) were acquired on 2000 June 30.89 with the 0.57-meter
telescope (+CCD camera SBIG ST-8) of the Klet Observatory, Czech Republic,
for a total exposure time of 480 sec. The exposure was taken under bad
seeing (~3.5 arcsec) due to poor sky conditions.

No new or noticeable object down to a magnitude ~20.5 is detected inside 
the imaged part of the IPN error box when we compare our summed frame
with the DSS-II Digital Sky Survey.
Also, no object is present at the position indicated by Bartolini et al.
(GCN #737).
The position of the radio source reported by Berger & Frail (GCN #738)
is instead not covered by our pointing.".

This message can be cited.
Looking for U.S. government information and services? Visit