value unc_up unc_lo author ref method 10.31 0.026 0.026 Masiero 2011ApJ...741...68M NEATM 10.50 0.047 0.047 Masiero 2011ApJ...741...68M NEATM 13.85 4.570 4.570 Masiero 2017AJ....154..168M NEATM