[vsnet-grb-info 4546] GRB070419A, optical observation

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  6310
SUBJECT: GRB070419A, optical observation
DATE:    07/04/19 14:30:54 GMT
FROM:    Eri Sonoda at U of Miyazaki/Japan  <sonoda at astro.miyazaki-u.ac.jp>

R. Hara, E.Sonoda, S.Maeno, H. Tanaka, N. Ohmori, M.Yamauchi
(University of Miyazaki)


  We have observed the field covering the error circle of
GRB070419A (GCN 6302, M. Stamatikos et al.) with
the unfiltered CCD camera on the 30-cm telescope at
University of Miyazaki.
The observation was started 10:24:34 UT, ~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.)	
--------------------------------------------------------------
10:42:40	10:43:10	1		~16.2
10:42:40	10:53:36	10		~17.7
---------------------------------------------------------------