value unc_up unc_lo author ref method 6.30 1.840 1.840 Masiero 2021PSJ.....2..162M NEATM 7.29 2.270 2.270 Masiero 2020PSJ.....1....5M NEATM 7.47 2.630 2.630 Masiero 2021PSJ.....2..162M NEATM 8.81 0.084 0.084 Masiero 2011ApJ...741...68M NEATM