value unc_up unc_lo author ref method 5.36 1.230 1.230 Masiero 2021PSJ.....2..162M NEATM 5.56 1.250 1.250 Masiero 2021PSJ.....2..162M NEATM 6.08 1.750 1.750 Masiero 2012ApJ...759L...8M NEATM