value unc_up unc_lo author ref method 3.91 0.840 0.840 Nugent 2016AJ....152...63N NEATM 4.72 0.860 0.860 Nugent 2016AJ....152...63N NEATM 4.98 1.110 1.110 Masiero 2012ApJ...759L...8M NEATM