GCN Circular 17798
I.A. Smith (Rice U.), N.R. Tanvir (U. of Leicester) report: We observed the location of the short GRB 150423A (Pagani et al., GCN Circ. 17728) using the SCUBA-2 sub-millimeter continuum camera on the James Clerk Maxwell Telescope. The observation started at 07:21 UT on 2015-04-23, corresponding to 53 minutes after the burst trigger. Exposures totaling 2.0 hours were made in good weather conditions. No source was detected, with the RMS background noise being 1.5 mJy/beam at 850 microns and 17.4 mJy/beam at 450 microns. We thank Callie Matulonis, Angus Mok, and Iain Coulson for the prompt support of these observations that were taken under project M15AI86.