value unc_up unc_lo author ref method 0.140 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM 0.143 0.0475 0.0475 Masiero 2011ApJ...741...68M NEATM 0.147 0.0248 0.0248 Masiero 2011ApJ...741...68M NEATM