value unc_up unc_lo author ref method 5.04 1.410 1.410 Masiero 2021PSJ.....2..162M NEATM 6.07 0.091 0.091 Masiero 2011ApJ...741...68M NEATM 7.49 2.572 2.572 Masiero 2017AJ....154..168M NEATM