value unc_up unc_lo author ref method 5.55 1.900 1.900 Masiero 2021PSJ.....2..162M NEATM 5.82 0.070 0.070 Masiero 2011ApJ...741...68M NEATM 6.83 2.140 2.140 Masiero 2021PSJ.....2..162M NEATM