value unc_up unc_lo author ref method 2.44 0.530 0.530 Masiero 2021PSJ.....2..162M NEATM 2.88 0.680 0.680 Masiero 2021PSJ.....2..162M NEATM 3.91 0.045 0.045 Masiero 2011ApJ...741...68M NEATM