value unc_up unc_lo author ref method 11.84 0.224 0.224 Masiero 2011ApJ...741...68M NEATM 12.72 0.329 0.329 Masiero 2011ApJ...741...68M NEATM 9.45 3.147 3.147 Masiero 2017AJ....154..168M NEATM