value unc_up unc_lo author ref method 15.10 4.970 4.970 Masiero 2021PSJ.....2..162M NEATM 15.69 0.319 0.319 Masiero 2011ApJ...741...68M NEATM 17.73 5.540 5.540 Masiero 2021PSJ.....2..162M NEATM