value unc_up unc_lo author ref method 5.67 0.048 0.048 Masiero 2011ApJ...741...68M NEATM 6.05 0.160 0.160 Masiero 2011ApJ...741...68M NEATM 6.12 1.460 1.460 Masiero 2020PSJ.....1....5M NEATM