TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4398 SUBJECT: GRB 051227, optical observation DATE: 05/12/27 20:04:04 GMT FROM: Eri Sonoda at U of Miyazaki/Japan E.Sonoda,S.Maeno,S.Masuda,Y.Nakamura,M.Yamauchi (University of Miyazaki) "We have observed the field covering the error circle of GRB 051227 (GCN 4397) with the unfiltered CCD camera on the 30-cm telescope at University of Miyazaki. The observation was started 18:27:18 UT on Dec.27. After co-adding a set of 6 images (18:27:18 - 18:36:21 UT) of 30 sec exposures, we have compared with the USNO A2.0 catalog. Preliminary analysis shows there is no new source brighter than 17.6 mag."