value unc_up unc_lo author ref method 18.07 0.210 0.210 Masiero 2014ApJ...791..121M NEATM 18.10 0.121 0.121 Masiero 2011ApJ...741...68M NEATM 21.15 0.610 0.610 Masiero 2012ApJ...759L...8M NEATM 22.75 1.450 1.450 Usui 2011PASJ...63.1117U NEATM 23.40 4.680 4.680 Ali-Lagoa 2018A&A...612A..85A NEATM