TITLE: GCN CIRCULAR NUMBER: 7493 SUBJECT: GRB 080319B - CARMA mm Observations DATE: 08/03/21 02:06:56 GMT FROM: S. Bradley Cenko at Caltech D. C.-J. Bock (CARMA), P. C. Chandra (NRAO/UVA), S. R. Kulkarni (Caltech), D. A. Frail (NRAO), and S. B. Cenko (Caltech) report on behalf of a larger collaboration: We have observed the position of GRB080319B (Racusin et al.; GCN 7247) with the Combined Array for Research in Millimeter-wave Astronomy (CARMA) at 95 GHz on 2008 March 20 (mean time 11:30 UT). We report a non-detection at the optical afterlow position with a 3-sigma limit of 0.75 mJy.