value unc_up unc_lo author ref method 9.35 0.330 0.330 Masiero 2014ApJ...791..121M NEATM 9.36 0.120 0.120 Masiero 2014ApJ...791..121M NEATM 9.56 0.060 0.060 Masiero 2011ApJ...741...68M NEATM 9.80 0.123 0.123 Masiero 2011ApJ...741...68M NEATM