value unc_up unc_lo author ref method 3.85 0.802 0.802 Masiero 2017AJ....154..168M NEATM 4.13 0.743 0.743 Masiero 2011ApJ...741...68M NEATM 4.53 0.213 0.213 Masiero 2011ApJ...741...68M NEATM