value unc_up unc_lo author ref method 10.07 0.090 0.090 Masiero 2014ApJ...791..121M NEATM 10.41 0.123 0.123 Masiero 2011ApJ...741...68M NEATM 13.02 0.490 0.490 Masiero 2012ApJ...759L...8M NEATM