value unc_up unc_lo author ref method 10.19 3.560 3.560 Masiero 2021PSJ.....2..162M NEATM 8.11 0.067 0.067 Masiero 2011ApJ...741...68M NEATM 8.51 0.214 0.214 Masiero 2011ApJ...741...68M NEATM