value unc_up unc_lo author ref method 0.040 0.0300 0.0300 Nugent 2016AJ....152...63N NEATM 0.051 0.0066 0.0066 Masiero 2011ApJ...741...68M NEATM 0.058 0.0332 0.0332 Masiero 2017AJ....154..168M NEATM