value unc_up unc_lo author ref method 6.64 0.030 0.030 Masiero 2014ApJ...791..121M NEATM 6.90 0.050 0.050 Masiero 2011ApJ...741...68M NEATM 7.01 0.140 0.140 Masiero 2014ApJ...791..121M NEATM 7.23 0.185 0.185 Masiero 2011ApJ...741...68M NEATM