value unc_up unc_lo author ref method 16.85 0.180 0.180 Masiero 2014ApJ...791..121M NEATM 18.01 0.111 0.111 Masiero 2011ApJ...741...68M NEATM 19.30 3.860 3.860 Ali-Lagoa 2018A&A...612A..85A NEATM 21.30 0.790 0.790 Usui 2011PASJ...63.1117U NEATM 23.02 4.600 4.600 Ali-Lagoa 2018A&A...612A..85A NEATM