value unc_up unc_lo author ref method 4.38 1.138 1.138 Masiero 2017AJ....154..168M NEATM 5.18 1.600 1.600 Masiero 2021PSJ.....2..162M NEATM 5.97 1.567 1.567 Masiero 2017AJ....154..168M NEATM 6.22 2.060 2.060 Masiero 2021PSJ.....2..162M NEATM