value unc_up unc_lo author ref method 5.36 0.153 0.153 Masiero 2011ApJ...741...68M NEATM 5.47 1.470 1.470 Masiero 2020PSJ.....1....5M NEATM 6.08 0.205 0.205 Masiero 2011ApJ...741...68M NEATM