TITLE: GCN CIRCULAR NUMBER: 22069 SUBJECT: AMI-LA observations of the new Be X-ray binary Swift J0243.6+6124 DATE: 17/10/29 14:17:48 GMT FROM: Kunal Mooley at Oxford U K. P. Mooley (Hintze Fellow, Oxford), T. D. Staley, R. P. Fender (Oxford), G. E. Anderson (Curtin), T. Cantwell (Manchester), D. Titterington, S. H. Carey, J. Hickish, Y. C. Perrott, N. Razavi-Ghods, P. Scott (Cambridge), K. Grainge, A. Scaife (Manchester) The AMI Large Array robotically triggered on the Swift alerts for the Be X-ray Binary, Swift J0243.6+6124 (e.g. Beardmore et al., GCN 22020; Kennea et al., ATel 10809; Kouroubatzakis et al., ATel 10822; also has Fermi alerts: Briggs et al., GCN 22047) as part of the 4pisky program, and several follow up observations were subsequently obtained. Our observations at 15 GHz are tabulated below. Our upper limit on 11 Oct 2017 (MJD 58037) is consistent with that reported by van den Eijnden et al. (ATel 10886). ----------------------- MJD       Flux Density ----------------------- 58029.16  <170 uJy 58032.04  <140 uJy 58037.01  <140 uJy 58044.05  372+/-67 uJy (likely a detection) 58045.00  <300 uJy ----------------------- We thank the AMI staff for scheduling these observations.More observations are ongoing.