value unc_up unc_lo author ref method 0.290 0.1400 0.1400 Nugent 2016AJ....152...63N NEATM 0.315 0.0446 0.0446 Masiero 2011ApJ...741...68M NEATM 0.385 0.0235 0.0235 Masiero 2011ApJ...741...68M NEATM