value unc_up unc_lo author ref method 6.87 1.990 1.990 Nugent 2016AJ....152...63N NEATM 7.24 0.108 0.108 Masiero 2011ApJ...741...68M NEATM 7.91 0.296 0.296 Masiero 2011ApJ...741...68M NEATM 7.95 1.590 1.590 Nugent 2016AJ....152...63N NEATM