SDSS DR16 sources with clean (ZWARNING == 0) spectra are matched with CatWISE2020 sources and sources meeting the following criteria dered_r > 12 && dered_r < 22 && dered_u != -9999.0 && dered_g != -9999.0 && dered_r != -9999.0 && dered_i != -9999.0 && dered_z != -9999.0 && w1mpro != 9999. && w2mpro != 9999. && w1snr > 5 && w2snr > 5 && blend_ext_flags == 1 have been retained. SDSS magnitudes are in the SDSS AB system, where CatWISE2020 magnitudes have been converted from the CatWISE2020 Vega system to the AB system. The "small" and "large" versions contain the very same sample (i.e. rows) but a more limited and more extensive set of properties/features (i.e. columns) respectively.

MV acknowledges support from the European Commission Research Executive Agency (FP7-SPACE-2013-1 GA 607254) and the South African Department of Science and Technology (DST/CON 0134/2014) as part of the Herschel Extragalactic Legacy Project - HELP. MV acknowledges financial support from the Inter-University Institute for Data Intensive Astronomy (IDIA), a partnership of the University of Cape Town, the University of Pretoria, the University of the Western Cape and the South African Radio Astronomy Observatory, and from the South African Department of Science and Innovation's National Research Foundation under the ISARP RADIOSKY2020 Joint Research Scheme (DSI-NRF Grant Number 113121) and the CSUR HIPPO Project (DSI-NRF Grant Number 121291).