[vsnet-grb-info 5907] GRB080328, RIMOTS optical upper limit

[GCN Circulars]

TITLE:   GCN CIRCULAR
NUMBER:  7557
SUBJECT: GRB080328, RIMOTS optical upper limit
DATE:    08/04/01 09:54:59 GMT
FROM:    Hiroki Tanaka at U of Miyazaki  <hiro0218 at astro.miyazaki-u.ac.jp>

H.Tanaka, K.Kono, R.Hara, N.Ohmori, H.hayasi, M.Yamauchi, E.Sonoda
(University of Miyazaki)

We have observed the field covering the error circle of
GRB080328 (GCN 7527, A.P. Beardmore et al.) with
the unfiltered CCD camera on the 30-cm telescope at
University of Miyazaki.
The observation was started 11:09:32 UT; about 186 minutes
after the Swift trigger time.

We have compared our data of 30 sec exposures
with the USNO-A2.0 catalog, there is no new source
at the reported position.

the upper limits are as follows:
--------------------------------------------------------------
Start(UT) End(UT)	Num. of frames 	Limit (mag.)
--------------------------------------------------------------
11:10:49 11:11:07 	1 		~15.74
11:10:59 12:58:24 	65 		~17.70
---------------------------------------------------------------