value unc_up unc_lo author ref method 8.84 2.260 2.260 Masiero 2021PSJ.....2..162M NEATM 9.51 2.560 2.560 Masiero 2021PSJ.....2..162M NEATM 9.98 0.320 0.320 Masiero 2012ApJ...759L...8M NEATM