GCN Circular 5023
Subject
GRB060428B, optical observation
Event
Date
2006-04-28T15:08:51Z (20 years ago)
From
Eri Sonoda at U of Miyazaki/Japan <sonoda@astro.miyazaki-u.ac.jp>
E.Sonoda,S.Maeno,M.Yamauchi
(University of Miyazaki)
We have observed the field covering the error circle of
GRB060428B (GCN 5017) with the unfiltered CCD camera on
the 30-cm telescope at University of Miyazaki.
The observation was started 12:02:52 UT, ~3.14 hour
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 position reported by P.A.Price et al.(GCN 5019).
The upper limits are as follows:
--------------------------------------------------------------
Start(UT) End(UT) Num. of frames Limit (mag.)
--------------------------------------------------------------
12:02:52 12:11:28 8 ~12.8
12:11:52 12:41:28 24 ~16.9
12:42:56 12:47:02 4 ~17.9
---------------------------------------------------------------