value unc_up unc_lo author ref method 0.225 0.0248 0.0248 Masiero 2011ApJ...741...68M NEATM 0.303 0.0671 0.0671 Masiero 2011ApJ...741...68M NEATM 0.330 0.1400 0.1400 Masiero 2014ApJ...791..121M NEATM