value unc_up unc_lo author ref method 12.71 0.590 0.590 Masiero 2012ApJ...759L...8M NEATM 14.21 0.220 0.220 Masiero 2014ApJ...791..121M NEATM 14.36 0.119 0.119 Masiero 2011ApJ...741...68M NEATM