GCN Circular 4986
Subject
Possible GRB060421: BART limits
Date
2006-04-21T07:45:54Z (19 years ago)
From
Martin Jelinek at Inst.Astrophys.Andalucia,Granada <mates@iaa.es>
Jan Strobl, Martin Topinka, Martin Nekola and Ren� Hudec
(ASU Ondrejov, Czech Republic),
Petr Kub�nek (ISDC Versoix, Swtzerland and ASU Ondrejov)
and Martin Jel�nek (IAA Granada)
report
Robotic telescope BART located in Ondrejov observatory in
Czech Republic, followed the Swift trigger 206257 (Goad et al,
GCN 4985). The observation in fully automatic mode (under
control of RTS2), started 33.7s after the Swift trigger time.
We did not find any new optical source. Particularly we set
the following limits:
Tmean Exp limit
44s 20s B>14.2
98.0s 20s V>15.2
152s 20s i>15.3
206s 20s z>14.3
184s 8x45s R>15.3
The magnitudes are calibrated against USNO-A2.0.