value unc_up unc_lo author ref method 4.77 0.071 0.071 Masiero 2011ApJ...741...68M NEATM 4.81 1.480 1.480 Masiero 2020PSJ.....1....5M NEATM 6.27 1.640 1.640 Masiero 2020PSJ.....1....5M NEATM