The CatWISE2020 Catalog

Abstract The CatWISE2020 Catalog consists of 1,890,715,640 sources over the entire sky selected from Wide-field Infrared Survey Explorer (WISE) and NEOWISE survey data at 3.4 4.6 μ m (W1 W2) collected 2010 January 7 to 2018 December 13. This set adds two years that used for CatWISE Preliminary Catalog, bringing total six times as many exposures spanning 16 large a time baseline AllWISE catalog. other major change is detection list was generated using crowdsource Schlafly et al., while software AllWISE. These factors result in roughly twice Catalog. scatter with respect Spitzer photometry faint magnitudes COSMOS field, which out Galactic Plane low ecliptic latitude (corresponding lower WISE coverage depth) similar 90% completeness depth W1 = 17.7 mag W2 17.5 mag, 1.7 deeper than In comparison Gaia, motions are accurate 20 mas yr −1 level W1∼15 ∼100 W1∼17 sources. accuracy represents 12× improvement catalogs available WISE/NEOWISE Enhanced Contributed Products area NASA/IPAC Science Archive.