TITLE: GCN CIRCULAR NUMBER: 5007 SUBJECT: GRB 060427, optical observation DATE: 06/04/27 14:23:05 GMT FROM: Shouta Maeno at U.of Miyazaki S.Maeno, E.Sonoda, M.Yamauchi (University of Miyazaki) "We have observed the field covering the error circle of GRB060427 (GCN 5006) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki. The observation was started 11:44:48 UT on Apr.27(98sec after the Swift trigger). After co-adding a set of 13 images (11:44:48 - 12:00:21 UT) of 30 sec exposures, we have compared with the USNO A2.0 catalog. Preliminary analysis shows there is no new source brighter than 15.1 mag."