value unc_up unc_lo author ref method 11.65 0.120 0.120 Masiero 2014ApJ...791..121M NEATM 12.66 0.140 0.140 Masiero 2011ApJ...741...68M NEATM 14.30 0.580 0.580 Masiero 2012ApJ...759L...8M NEATM