value unc_up unc_lo author ref method 4.33 0.640 0.640 Nugent 2016AJ....152...63N NEATM 4.64 0.212 0.212 Masiero 2011ApJ...741...68M NEATM 4.90 0.161 0.161 Masiero 2011ApJ...741...68M NEATM