value unc_up unc_lo author ref method 0.065 0.1150 0.1150 Masiero 2012ApJ...759L...8M NEATM 0.088 0.0212 0.0212 Masiero 2011ApJ...741...68M NEATM 0.125 0.0894 0.0894 Masiero 2017AJ....154..168M NEATM