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GCN Circular 10385

Subject
GRB 100206A, RIMOTS optical upper limits
Date
2010-02-06T22:03:16Z (14 years ago)
From
Kazuhiro Noda at Miyazaki U <kaz1206@astro.miyazaki-u.ac.jp>
K.Noda, E.Sonoda, H.hayasi, K.Kono, N.Ohmori,
A.Daikyuji, Y.Nisioka, M.Yamauchi
(University of Miyazaki)

We have observed the field covering the error circle of
GRB GRB090206A (Swift trigger 411412, GCN 10376, Krimm et al.)
with the unfiltered CCD camera on the 30-cm telescope
at University of Miyazaki.
The observation was started 13:31:14 UT, about 1 min
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.)
--------------------------------------------------------------
13:31:14	13:31:44	 1	14.1
13:31:14	14:26:55	29	17.4	
---------------------------------------------------------------
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