value unc_up unc_lo author ref method 3.74 0.090 0.090 Masiero 2011ApJ...741...68M NEATM 4.20 2.200 2.200 Masiero 2012ApJ...759L...8M NEATM 4.90 1.570 1.570 Masiero 2021PSJ.....2..162M NEATM