value unc_up unc_lo author ref method 0.360 0.1600 0.1600 Nugent 2016AJ....152...63N NEATM 0.376 0.0584 0.0584 Masiero 2011ApJ...741...68M NEATM 0.430 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM