TITLE: GCN CIRCULAR NUMBER: 9017 SUBJECT: Further 15GHz observations of GRB090313 DATE: 09/03/23 12:34:06 GMT FROM: Guy Pooley at MRAO, Cambridge, UK Guy Pooley, on behalf of the AMI collaboration (Cavendish Astrophysics, University of Cambridge) reports: Further observations of the field of GRB090313 have been made with the AMI Large Array in the frequency range 14.5 to 17.5 GHz. Including those already reported in GCN 9003 and 9007, after minor recalibration, the flux densities measured were 2009 Mar 16.13 800 +- 80 microJy 2009 Mar 17.06 882 +- 77 2009 Mar 18.05 815 +- 129 2009 Mar 20.16 718 +- 97 2009 Mar 23.05 655 +- 69 Observations lasted between 1 and 3 h, and the resolution is approximately 60x25 arcsec. The position is consistent with that of the optical transient (Chornock et al GCN8979). This message may be quoted.