value unc_up unc_lo author ref method 5.32 1.250 1.250 Masiero 2021PSJ.....2..162M NEATM 6.12 1.723 1.723 Masiero 2017AJ....154..168M NEATM 6.78 0.076 0.076 Masiero 2011ApJ...741...68M NEATM