value unc_up unc_lo author ref method 2.63 0.540 0.540 Masiero 2021PSJ.....2..162M NEATM 2.83 0.540 0.540 Masiero 2020PSJ.....1....5M NEATM 2.99 0.149 0.149 Masiero 2011ApJ...741...68M NEATM