value unc_up unc_lo author ref method 0.080 0.0800 0.0800 Nugent 2016AJ....152...63N NEATM 0.092 0.0238 0.0238 Masiero 2011ApJ...741...68M NEATM 0.100 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM