value unc_up unc_lo author ref method 5.15 0.043 0.043 Masiero 2011ApJ...741...68M NEATM 6.11 2.100 2.100 Masiero 2020PSJ.....1....5M NEATM 6.59 1.960 1.960 Masiero 2020PSJ.....1....5M NEATM