value unc_up unc_lo author ref method 1.91 0.370 0.370 Masiero 2020PSJ.....1....5M NEATM 1.92 0.420 0.420 Masiero 2020PSJ.....1....5M NEATM 3.20 0.165 0.165 Masiero 2011ApJ...741...68M NEATM