value unc_up unc_lo author ref method 2.24 0.300 0.300 Masiero 2011ApJ...741...68M NEATM 2.85 0.850 0.850 Masiero 2017AJ....154..168M NEATM 3.03 0.153 0.153 Masiero 2011ApJ...741...68M NEATM