value unc_up unc_lo author ref method 0.210 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM 0.220 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM 0.434 0.1038 0.1038 Masiero 2011ApJ...741...68M NEATM