Multi-order coverage (MOC) map of the SCUBA 850 μm data. The lower left panel shows an approximately 5^◦× 2.̊5 region of the HiPS image of the SCUBA 850 um map. The MOC map of this region is shown in red, where we display the individual HEALPix pixels of different orders that define the MOC. The lowest order (largest HEALPix pixel) in this MOC is k = 6 (corresponding to θ = 55.́0), and the range of orders extends up to k = 15 as shown in the magnified section of the figure where the smallest (θ = 6.̋44) pixels define the resolution of the MOC.