value unc_up unc_lo author ref method 5.63 0.070 0.070 Masiero 2014ApJ...791..121M NEATM 5.77 0.110 0.110 Masiero 2014ApJ...791..121M NEATM 6.00 0.019 0.019 Masiero 2011ApJ...741...68M NEATM 6.24 0.098 0.098 Masiero 2011ApJ...741...68M NEATM