The DES footprint in equatorial coordinates, including the Wide Survey, the Supernova Survey fields (labeled “SN”; D’Andrea et al. 2018), the COSMOS field, as well as relevant HSC-SSP DR2 (Aihara et al. 2019) and VHS DR4 (McMahon et al. 2013) data sets used in this work (only the approximate overlapping regions are indicated for clarity). The fields used for DES Deep Field processing are filled red (Section 3.4). The DES footprint avoids the Galactic plane (solid black line with dashed lines at b = ±10°) and central regions of the Large and Small Magellanic Clouds (LMC, SMC).