apertif_dr1.source_catalognamemeta.id;meta.maincharnullablerathe right ascension of the source (for the equinox of the image)degpos.eq.ra;meta.maindoubleindexednullablee_rathe error on the right ascension of the sourcedegpos.eq.ra;stat.errordoublenullabledecthe declination of the source (for the equinox of the image)degpos.eq.dec;meta.maindoubleindexednullablee_decthe 1-sigma error on the declination of the sourcedegpos.eq.dec;stat.errordoublenullabletotal_fluxthe total, integrated Stokes I flux density of the source at the reference frequencymJydoublenullablee_total_fluxthe 1-sigma error on the total flux density of the sourcemJydoublenullablepeak_fluxthe peak Stokes I flux density per beam of the sourcemJy/beamdoublenullablee_peak_fluxthe 1-sigma error on the peak flux density per beam of the sourcemJy/beamdoublenullabledc_majthe FWHM of the deconvolved major axis of the sourcedegdoublenullablee_dc_majthe 1-sigma error on the FWHM of the deconvolved major axis of the sourcedegdoublenullabledc_minThe FWHM of the deconvolved minor axis of the sourcedegdoublenullablee_dc_minThe 1-sigma error on the FWHM of the deconvolved minor axis of the sourcedegdoublenullabledc_pathe position angle of the deconvolved major axis of the source measured east of northdegdoublenullablee_dc_pathe 1-sigma error on the position angle of the deconvolved major axis of the sourcedegdoublenullableisl_rmsthe average background rms value of the islandmJy/beamdoublenullables_codeA code that defines the source structure 'S' for single Gaussian, 'M' for multiple Gaussian, 'C' = a single-Gaussian source in an island with other sourcesmeta.codecharnullable