TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3513 SUBJECT: GRB050603: Radio Detection DATE: 05/06/03 19:32:18 GMT FROM: Patrick B. Cameron at Caltech P. B. Cameron (Caltech) reports on behalf of the Caltech-NRAO-Carnegie GRB Collaboration: "We observed the field of GRB050603 (GCN#3509) using the Very Large Array at a frequency of 8.5 GHz on June 3.62 UT. We detect a radio source with coordinates (J2000) Ra= 02:39:56.891 Dec= -25:10:54.6 with an uncertainty of 0.1" in each coordinate at the position of the optical afterglow (GCN#3511)."