TITLE: GCN GRB OBSERVATION REPORT NUMBER: 3387 SUBJECT: GRB050509b: Radio Observations DATE: 05/05/09 07:38:23 GMT FROM: Alicia Soderberg at Caltech A. M. Soderberg (Caltech) and D. A. Frail (NRAO) report on behalf of the Caltech-NRAO-Carnegie collaboration: "We observed the field of GRB050509b (GCN 3381) with the Very Large Array at 8.5 GHz on May 9.25 UT. We do not detect any radio sources within the XRT error region (GCN 3380). Further observations are planned."