value unc_up unc_lo author ref method 4.44 0.780 0.780 Nugent 2016AJ....152...63N NEATM 5.30 0.129 0.129 Masiero 2011ApJ...741...68M NEATM 5.83 0.100 0.100 Masiero 2014ApJ...791..121M NEATM 6.13 0.113 0.113 Masiero 2011ApJ...741...68M NEATM