value unc_up unc_lo author ref method 7.51 2.120 2.120 Masiero 2021PSJ.....2..162M NEATM 8.84 2.240 2.240 Masiero 2021PSJ.....2..162M NEATM 9.43 0.099 0.099 Masiero 2011ApJ...741...68M NEATM