TITLE: GCN CIRCULAR NUMBER: 6149 SUBJECT: VLA observation of GRB 070220 DATE: 07/02/26 17:50:18 GMT FROM: Poonam Chandra at U Virginia/NRAO Poonam Chandra (NRAO/UVA) and Dale A. Frail (NRAO) report on behalf of the Caltech-NRAO-Carnegie GRB Collaboration: "We used the Very Large Array to observe the field of view toward GRB 070220 (GCN 6114) at a frequency of 8.46 GHz on 2007 February 24 at 0.94 UT. The GRB is undetected and the peak radio brightness at the SWIFT-XRT position (GCN 6118) is 15 uJy ± 50 uJy. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc."