value unc_up unc_lo author ref method 5.58 0.110 0.110 Masiero 2011ApJ...741...68M NEATM 6.12 1.390 1.390 Masiero 2020PSJ.....1....5M NEATM 6.34 1.940 1.940 Masiero 2020PSJ.....1....5M NEATM