value unc_up unc_lo author ref method 4.86 1.320 1.320 Masiero 2021PSJ.....2..162M NEATM 6.06 0.073 0.073 Masiero 2011ApJ...741...68M NEATM 6.21 1.450 1.450 Masiero 2021PSJ.....2..162M NEATM