value unc_up unc_lo author ref method 17.83 0.210 0.210 Masiero 2014ApJ...791..121M NEATM 18.50 0.068 0.068 Masiero 2011ApJ...741...68M NEATM 18.95 0.630 0.630 Masiero 2012ApJ...759L...8M NEATM 19.82 0.260 0.260 Usui 2011PASJ...63.1117U NEATM 21.24 2.120 2.120 Ali-Lagoa 2018A&A...612A..85A NEATM 21.95 2.200 2.200 Ali-Lagoa 2018A&A...612A..85A NEATM