value unc_up unc_lo author ref method 8.24 0.208 0.208 Masiero 2011ApJ...741...68M NEATM 9.48 2.380 2.380 Masiero 2020PSJ.....1....5M NEATM 9.83 3.530 3.530 Masiero 2021PSJ.....2..162M NEATM