value unc_up unc_lo author ref method 18.69 0.180 0.180 Masiero 2014ApJ...791..121M NEATM 19.71 0.800 0.800 Masiero 2012ApJ...759L...8M NEATM 20.14 0.160 0.160 Masiero 2011ApJ...741...68M NEATM 20.45 0.560 0.560 Usui 2011PASJ...63.1117U NEATM 21.70 2.170 2.170 Ali-Lagoa 2018A&A...612A..85A NEATM 24.50 4.900 4.900 Ali-Lagoa 2018A&A...612A..85A NEATM