value unc_up unc_lo author ref method 0.230 0.1300 0.1300 Nugent 2016AJ....152...63N NEATM 0.282 0.0768 0.0768 Masiero 2011ApJ...741...68M NEATM 0.312 0.0209 0.0209 Masiero 2011ApJ...741...68M NEATM 0.320 0.0600 0.0600 Masiero 2014ApJ...791..121M NEATM