value unc_up unc_lo author ref method 6.06 1.270 1.270 Masiero 2021PSJ.....2..162M NEATM 6.71 1.340 1.340 Masiero 2021PSJ.....2..162M NEATM 6.71 2.440 2.440 Masiero 2020PSJ.....1....5M NEATM 9.04 0.082 0.082 Masiero 2011ApJ...741...68M NEATM