value unc_up unc_lo author ref method 18.26 3.211 3.211 Masiero 2011ApJ...741...68M NEATM 19.96 2.480 2.480 Masiero 2012ApJ...759L...8M NEATM 21.40 4.280 4.280 Ali-Lagoa 2018A&A...612A..85A NEATM 22.47 1.240 1.240 Usui 2011PASJ...63.1117U NEATM 24.48 4.900 4.900 Ali-Lagoa 2018A&A...612A..85A NEATM