TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4430 SUBJECT: GRB060105 : Kiso optical observation DATE: 06/01/05 12:33:38 GMT FROM: Yuji Urata at RIKEN GRB060105 : Kiso optical observation H. Izumiura (NAOJ), H. Mito(Tokyo U.), Y. Urata (RIKEN), K.Y. Huang, W.H. Ip (NCU), Y. Qiu (BAO) on behalf of EAFON report: " We started R band imaging observation for GRB 060105 (Ziaeepour et al. # 4429) using Kiso observatory's 1.05-m Schmidt telescope at 09:39 UT (2.82 hour after the burst). There are no new sources down to the R=20.2 (S/N=3). Since we could not find the UVOT candidate with the limiting magnitude, the source has potential to be an afterglow of GRB 060105. Further analysis is in progress." This message may be cited.