value unc_up unc_lo author ref method 16.10 1.050 1.050 Masiero 2012ApJ...759L...8M NEATM 18.59 0.890 0.890 Usui 2011PASJ...63.1117U NEATM 19.15 3.830 3.830 Ali-Lagoa 2018A&A...612A..85A NEATM 19.97 3.990 3.990 Ali-Lagoa 2018A&A...612A..85A NEATM