value unc_up unc_lo author ref method 16.39 1.980 1.980 Masiero 2012ApJ...759L...8M NEATM 18.11 0.331 0.331 Masiero 2011ApJ...741...68M NEATM 21.48 1.240 1.240 Usui 2011PASJ...63.1117U NEATM 22.15 4.430 4.430 Ali-Lagoa 2018A&A...612A..85A NEATM