TITLE: GCN CIRCULAR NUMBER: 9685 SUBJECT: GRB 090709A - CARMA mm Observations DATE: 09/07/17 22:01:56 GMT FROM: Adam Morgan at U.C. Berkeley A. N. Morgan, G. C. Bower (UC Berkeley), report: We observed the field of GRB 090709A (Morris et al., GCN 9625) with the Combined Array for Research in Millimeter-Wave Astronomy (CARMA) at an average frequency of 88.5 GHz beginning at 2009-07-15 04:41:33 UT, ~5.88 days after the Swift trigger. No source was detected at the position of the NIR/optical afterglow (Aoki et al., GCN 9634; Morgan et al., GCN 9635; Cenko et al., GCN 9646; Guidorzi et al., GCN 9648) down to the following limits: post_burst t_mid(d) exp(h) freq_mid(GHz) bandwidth(MHz) flux (mJy) 5.98 3.79 88.5 3000 < 1.1 (3 sig) The quasar 1849+670 was used as a phase calibrator, and fluxes were calibrated to an observation of Neptune taken at the end of the track. We thank the staff and observers at CARMA and instructors of the CARMA Summer School for excellent support during the observations and analysis.