value unc_up unc_lo author ref method 4.56 0.910 0.910 Nugent 2016AJ....152...63N NEATM 4.91 0.086 0.086 Masiero 2011ApJ...741...68M NEATM 5.42 0.162 0.162 Masiero 2011ApJ...741...68M NEATM