TITLE: GCN CIRCULAR NUMBER: 17997 SUBJECT: GRB 150626B: AMI 16 GHz detection of the radio counterpart DATE: 15/07/07 14:12:27 GMT FROM: Kunal Mooley at Oxford U K. P. Mooley, G. E. Anderson, R. P. Fender, T. D. Staley (University of Oxford), A. J. van der Horst (George Washington University), A. Rowlinson (CASS) We observed the position of GRB 150626B (McCauley et al., GCN 17966, Goad et al., GCN 17968) at 16 GHz with the Arcminute Microkelvin Imager (AMI-LA) at 2015 June 26.85, June 27.58, and July 03.56 UT, corresponding to 0.01 days, 0.73 days and 6.71 days post-burst respectively. The GRB flux densities at these three epochs were <0.19 mJy (3 sigma upper limit), 0.17+/-0.05 mJy (marginal detection), and 0.29+/-0.06 mJy (confirmed detection) respectively. Further AMI monitoring is ongoing. We thank the AMI scheduling team for carrying out these observations.