value unc_up unc_lo author ref method 5.82 1.129 1.129 Masiero 2017AJ....154..168M NEATM 6.02 1.750 1.750 Masiero 2021PSJ.....2..162M NEATM 6.06 2.143 2.143 Masiero 2017AJ....154..168M NEATM 6.50 1.930 1.930 Masiero 2021PSJ.....2..162M NEATM 7.50 0.099 0.099 Masiero 2011ApJ...741...68M NEATM