value unc_up unc_lo author ref method 18.22 3.640 3.640 Ali-Lagoa 2018A&A...612A..85A NEATM 18.33 0.283 0.283 Masiero 2011ApJ...741...68M NEATM 19.39 1.510 1.510 Usui 2011PASJ...63.1117U NEATM 21.64 4.330 4.330 Ali-Lagoa 2018A&A...612A..85A NEATM