[vsnet-grb-info 2821] GRB060204B, optical observation

[GCN Circulars]

TITLE:   GCN GRB OBSERVATION REPORT
NUMBER:  4658
SUBJECT: GRB060204B, optical observation
DATE:    06/02/04 16:51:42 GMT
FROM:    Eri Sonoda at U of Miyazaki/Japan  <sonoda at astro.miyazaki-u.ac.jp>

E.Sonoda,S.Maeno,Y.Nakamura,S.Masuda,M.Yamauchi
(University of Miyazaki)


  We have observed the field covering the error circle of
GRB060204B (GCN 4655) with the unfiltered CCD camera on
the 30-cm telescope at University of Miyazaki.
The observation was started 14:44:39 UT, 10.25 min
after the Swift trigger time.
We have compared our data of 30 sec exposures
with the USNO-A2.0 catalog,
the upper limits are as follows:
--------------------------------------------------------------
Start(UT)	End(UT)	    Num. of frames	Limit (mag.)	
--------------------------------------------------------------
14:44:39	14:45:09	1		~15.1
14:44:39	14:48:48	6		~16.34
---------------------------------------------------------------