value unc_up unc_lo author ref method 2.15 0.290 0.290 Masiero 2011ApJ...741...68M NEATM 2.60 0.033 0.033 Masiero 2011ApJ...741...68M NEATM 3.32 1.240 1.240 Masiero 2020PSJ.....1....5M NEATM