value unc_up unc_lo author ref method 0.142 0.0240 0.0240 Mainzer 2011ApJ...743..156M NEATM 0.208 0.1300 0.1300 Masiero 2020PSJ.....1....5M NEATM 0.244 0.1030 0.1770 Masiero 2021PSJ.....2..162M NEATM