value unc_up unc_lo author ref method 4.89 0.515 0.515 Masiero 2011ApJ...741...68M NEATM 5.48 0.508 0.508 Masiero 2011ApJ...741...68M NEATM 7.27 1.580 1.580 Masiero 2020PSJ.....1....5M NEATM