TITLE: GCN CIRCULAR NUMBER: 10698 SUBJECT: GRB 100414A : EVLA Radio Detection DATE: 10/04/28 16:10:57 GMT FROM: Dale A. Frail at NRAO Dale A. Frail (NRAO), Poonam Chandra (RMC), S. Bradley Cenko (Berkeley) and Fiona Harrison (Caltech) report on behalf of a larger collaboration: "We used the Expanded Very Large Array (EVLA) to observe the field of view towards the Fermi GBM/LAT burst GRB 100414A (GCN 10594, 10595, 10649) on April 27.18 UT at a center frequency of 8.46 GHz. We detect the radio afterglow with flux density of 397 ± 15 microJy at the position of the optical afterglow detected by GROND (GCN 10607). Further observations are planned. The EVLA is still undergoing active commissioning and we caution that these results should be considered preliminary. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc."