value unc_up unc_lo author ref method 5.50 0.161 0.161 Masiero 2011ApJ...741...68M NEATM 6.99 2.437 2.437 Masiero 2017AJ....154..168M NEATM 7.12 2.150 2.150 Masiero 2021PSJ.....2..162M NEATM 8.27 2.540 2.540 Masiero 2021PSJ.....2..162M NEATM