value unc_up unc_lo author ref method 13.26 0.204 0.204 Masiero 2011ApJ...741...68M NEATM 13.50 0.185 0.185 Masiero 2011ApJ...741...68M NEATM 9.38 2.821 2.821 Masiero 2017AJ....154..168M NEATM