value unc_up unc_lo author ref method 0.220 0.0500 0.0500 Masiero 2014ApJ...791..121M NEATM 0.242 0.0418 0.0418 Masiero 2011ApJ...741...68M NEATM 0.280 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM