https://ui.adsabs.harvard.edu/abs/2014yCat.2328....0C/abstract This catalog contains photometric and astrometric measurements from the AllWISE (All-sky Wide-field Infrared Survey Explorer) data release. Below is a description of each column. ra: dec: healpix: fits_data: Placeholder or reference to associated FITS image/data file ('AllwiseW1', 'AllwiseW2', 'AllwiseW3', 'AllwiseW4'). Jmag: Apparent magnitude in the J band (~1.25 µm). Hmag: Apparent magnitude in the H band (~1.65 µm). Kmag: Apparent magnitude in the Ks band (~2.17 µm). W1mag: Apparent magnitude in WISE W1 band (~3.4 µm). W2mag: Apparent magnitude in WISE W2 band (~4.6 µm). W3mag: Apparent magnitude in WISE W3 band (~12 µm). W4mag: Apparent magnitude in WISE W4 band (~22 µm). e_Jmag: Uncertainty (1σ error) in Jmag. e_Hmag: Uncertainty (1σ error) in Hmag. e_Kmag: Uncertainty (1σ error) in Kmag. e_W1mag: Uncertainty (1σ error) in W1mag. e_W2mag: Uncertainty (1σ error) in W2mag. e_W3mag: Uncertainty (1σ error) in W3mag. e_W4mag: Uncertainty (1σ error) in W4mag. ccf: Contamination and confusion flag (indicates potential blending or artifacts; format may be a string like '0000' where each digit corresponds to a WISE band). ex: Extrapolated flag or source extraction status (may indicate if flux was extrapolated beyond profile fitting). eeMaj: Major axis of the positional error ellipse (in arcseconds). eeMin: Minor axis of the positional error ellipse (in arcseconds). eePA: Position angle of the error ellipse (in degrees east of north).