value unc_up unc_lo author ref method 3.71 0.710 0.710 Masiero 2012ApJ...759L...8M NEATM 5.14 0.169 0.169 Masiero 2011ApJ...741...68M NEATM 5.84 1.494 1.494 Masiero 2017AJ....154..168M NEATM