value unc_up unc_lo author ref method 0.096 0.0270 0.0270 Masiero 2011ApJ...741...68M NEATM 0.103 0.0432 0.0432 Masiero 2017AJ....154..168M NEATM 0.140 0.0797 0.0797 Masiero 2017AJ....154..168M NEATM