TITLE: GCN CIRCULAR NUMBER: 18134 SUBJECT: GRB 150811A: VLA Detection DATE: 15/08/12 20:11:53 GMT FROM: Tanmoy Laskar at Harvard U T. Laskar (NRAO / UC Berkeley), A. Zauderer, K. Alexander, E. Berger (Harvard), and W. Fong (Univ. of Arizona) report on behalf of a larger collaboration: "We observed GRB 150811A (Evans et al; GCN 18119) at multiple frequencies with the VLA beginning 2015 August 12.13 UT (0.96 days after the burst). At a mean frequency of 21.8 GHz, we detect a radio source with a preliminary flux density of ~ 0.1 mJy at RA = 19:25:21.3920 +/- 0.0005 Dec = -15:25:31.00 +/- 0.01 consistent with the enhanced Swft/XRT position (Goad et al.; GCN 18124) and the optical position (Butler et al., GCN 18120; Zheng at al., GCN 18121; Kuin et al., GCN 18122). Follow-up observations are planned."