value unc_up unc_lo author ref method 4.71 1.597 1.597 Masiero 2011ApJ...741...68M NEATM 4.76 0.359 0.359 Masiero 2011ApJ...741...68M NEATM 5.75 1.707 1.707 Masiero 2017AJ....154..168M NEATM