value unc_up unc_lo author ref method 5.46 0.042 0.042 Masiero 2011ApJ...741...68M NEATM 5.57 1.630 1.630 Masiero 2020PSJ.....1....5M NEATM 6.07 2.000 2.000 Masiero 2020PSJ.....1....5M NEATM