value unc_up unc_lo author ref method 6.42 0.020 0.020 Masiero 2011ApJ...741...68M NEATM 8.45 2.380 2.380 Masiero 2020PSJ.....1....5M NEATM 8.47 2.670 2.670 Masiero 2020PSJ.....1....5M NEATM