TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3524 SUBJECT: GRB050607: P60 Observations DATE: 05/06/07 10:39:41 GMT FROM: Derek Fox at CIT D.B. Fox and S.B. Cenko report on behalf of the Caltech-NRAO-Carnegie GRB collaboration: "We have observed the BAT localization region for GRB050607 with the Robotic P60 in a sequence of exposures beginning at 09:29 UT, approximately 18 minutes after the burst. Inspection of our initial R-band (epoch 09:29) and i-band (09:34 UT) images reveals no bright new sources to the limit of the USNO-B1.0 catalog, R < 19 mag."