value unc_up unc_lo author ref method 3.58 0.870 0.870 Nugent 2016AJ....152...63N NEATM 6.99 2.110 2.110 Nugent 2016AJ....152...63N NEATM 7.57 1.820 1.820 Masiero 2021PSJ.....2..162M NEATM 8.04 0.130 0.130 Masiero 2011ApJ...741...68M NEATM