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

CatWISE2020 目录包含 1,890,715,640 个覆盖整个天空的光源，这些光源选自宽视场红外巡天探测器 (WISE) 以及2010 年 1 月 7 日至 2018 年 12 月 13 日收集的3.4 和 4.6微米（W1 和 W2）的NEOWISE 勘测数据。该数据集在用于 CatWISE 初步目录的基础上增加了两年，使总曝光量达到 AllWISE 目录的 16 倍以上时间基线的六倍。CatWISE 初步目录的另一个主要变化是 CatWISE2020 目录的检测列表是使用众包生成的来自 Schlafly 等人，而 CatWISE 初步目录使用了用于 AllWISE 的检测软件。这两个因素导致 CatWISE2020 目录中的来源数量大约是原来的两倍。在 COSMOS 场中微弱星等的斯皮策光度测量方面的散射，其位于银河平面之外和低黄道纬度（对应于较低的 WISE 覆盖深度），与 CatWISE 初步目录的散射相似。CatWISE2020 目录的 90% 完整性深度为 W1 = 17.7 mag 和 W2 = 17.5 mag，比 CatWISE 初步目录深 1.7 mag。相比于盖亚，CatWISE2020运动是在20年马斯准确^-1水平W1~15 MAG源，并在约100个马斯年^-1W1∼17 mag 源的电平。这种精度水平比 AllWISE 提高了 12 倍。CatWISE 目录可在 NASA/IPAC 红外科学档案的 WISE/NEOWISE Enhanced and Contributed Products 区域中找到。