value unc_up unc_lo author ref method 4.28 0.332 0.332 Masiero 2011ApJ...741...68M NEATM 4.71 1.180 1.180 Masiero 2020PSJ.....1....5M NEATM 4.88 1.917 1.917 Masiero 2011ApJ...741...68M NEATM