value unc_up unc_lo author ref method 5.77 0.193 0.193 Masiero 2011ApJ...741...68M NEATM 8.62 2.330 2.330 Masiero 2020PSJ.....1....5M NEATM 9.21 2.080 2.080 Masiero 2020PSJ.....1....5M NEATM