value unc_up unc_lo author ref method 2.57 0.720 0.720 Masiero 2020PSJ.....1....5M NEATM 3.16 0.300 0.300 Masiero 2011ApJ...741...68M NEATM 3.90 0.308 0.308 Masiero 2011ApJ...741...68M NEATM