GCN Circular 13136
Y. Urata (NCU), K.Y. Huang, S. Takahashi (ASIAA), G. Petitpas (SMA) on behalf of EAFON We observed the field of GRB120326A(GCN 13105) using Sub-Millimeter Array (SMA). The observation in 219 GHz was started at 2012 Mar 26, 10:15 and ended at 21:10 (UT). Our preliminary analysis shows a radio counterpart at the position of optical afterglow(GCN 13107, 13109, 13111). The averaged flux density during the observation is 3.1 +/- 0.5 mJy. Further detail analysis and monitoring are ongoing.