value unc_up unc_lo author ref method 4.91 1.380 1.380 Masiero 2021PSJ.....2..162M NEATM 4.99 0.094 0.094 Masiero 2011ApJ...741...68M NEATM 5.33 1.730 1.730 Masiero 2020PSJ.....1....5M NEATM