TITLE: GCN GRB OBSERVATION REPORT NUMBER: 4054 SUBJECT: GRB 051001: I-band limit DATE: 05/10/02 01:41:05 GMT FROM: Derek Fox at PSU D.B. Fox (Penn State), N.E.D. Noel (Instituto de Astrofisica de Canarias), and S.L. Prior (RSAA/ANU), with B.A. Peterson and B.P. Schmidt (RSAA/ANU) report: "We have observed the Swift XRT localization region for GRB 051001 (Swift Trigger 157870; Moretti et al., GCN 4051) with the 40-inch telescope at Siding Spring Observatory. A coadded I-band image with mean epoch 1 October 11:53 UT (52 minutes after the burst) reveals no sources within this region, to a limiting magnitude of I>20.8 mag as calibrated against the photometry of the USNO-B1.0 catalog. In particular, we do not detect the extended object of Rol, Levan & Tanvir (GCN 4053) to the quoted limit."