Notes. This is an example for several sources from the main catalog. (1) 2XLSSd name; (2) RA of the optical counterpart; (3) Dec of the optical counterpart; (4) spectroscopic redshift when available; (5) rank of the spectroscopic redshift: 1 – good quality (two or more lines in the spectra); 2 – acceptable redshifts (one clear line in the spectra); 3 – dubious redshift; (6) source of the spectroscopic redshift: 1 – Le Fèvre et al. (2005); 2 – Garcet et al. (2007); 3 – Lacy et al. (2007); 4 – Stalin et al. (2010); 5 – Lidman et al. (2012); 6 – the NASA/IPAC Extragalactic Database: http://nedwww.ipac.caltech.edu (NED); 7 – Simpson et al. (2006, 2012); 8 – Geach et al. (2007); 9 – Ouchi et al. (2008); 10 – Smail et al. (2008); 11 – van Breukelen et al. (2007, 2009); 12 – Finoguenov et al. (2010); 13 – Akiyama et al. (in prep.); 14 – Croom et al. (in prep.). The compilation of redshifts from 7−14 can be found here: http://www.nottingham.ac.uk/~ppzoa/UDS_redshifts_18Oct2010.fits; 15 – SDSS DR9 data: http://www.sdss3.org. We did not use the SDSS redshifts in the calculations; they were added to the table later. (7) spectral classification; (8) photometric redshift; (9) classification according to SED: GAL – normal galaxy templates of Ilbert et al. (2009) or templates #1−6 of Salvato et. al (2009), AGN/QSO – hybrid and AGN/QSO templates (#7−30) of Salvato et al. (2009); (10) rank of the photometric redshift: 1 – good quality photometric redshift: 7 or more bands, PDZ = 100; 2 – medium quality photometric redshift: 7 or more bands, PDZ < 100; 3 – dubious photometric redshift, 4−6 bands; 4 – no redshift because of lack of photometry; 5 – no redshift because the objects are invisible (very faint) or wrong associations (probably misclassified); (11) hardness ratio HR; (12) X-ray luminosity in the soft band, erg/s; (13) X-ray luminosity in the hard band, erg/s; (14) final classification of the source; (15) DOGs objects are flagged by 1 (see Sect. 4.3 for the details).