value unc_up unc_lo author ref method 11.17 0.174 0.174 Masiero 2011ApJ...741...68M NEATM 14.18 3.920 3.920 Masiero 2020PSJ.....1....5M NEATM 16.98 6.410 6.410 Masiero 2012ApJ...759L...8M NEATM