GCN Circular 9814
Poonam Chandra (RMC) and Dale A. Frail (NRAO) report on behalf of a larger collaboration: "We used the Very Large Array to observe the field of view toward GRB 090812 (GCN 9768) at a frequency of 8.46 GHz at two epochs, on 2009 Aug. 13.37 UT and Aug. 15.41 UT. The GRB radio afterglow is undetected in both the observations. The peak fluxes at the P60 optical afterglow position (GCN 9769) in the two observations are 104+/-43 uJy and 63+/-62 uJy, respectively. The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc."