GCN Circular 7691

Subject

GRB080503, RIMOTS optical upper limit

Event

Date

2008-05-07T07:44:10Z (18 years ago)

From

Hiroki Tanaka at U of Miyazaki <hiro0218@astro.miyazaki-u.ac.jp>

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

We have observed the field covering the error circle of
GRB080503 (GCN 7669Loading...
 
 , M.R. Goad et al.) with
the unfiltered CCD camera on the 30-cm telescope at
University of Miyazaki.
The observation was started 15:25:55 UT; about 180 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.)
--------------------------------------------------------------
15:26:57 15:27:27 	1 		~16.82
15:26:57 16:24:33 	57 		~17.43
---------------------------------------------------------------