value unc_up unc_lo author ref method 2.03 0.500 0.500 Masiero 2020PSJ.....1....5M NEATM 2.15 0.600 0.600 Masiero 2011ApJ...741...68M NEATM 2.52 1.044 1.044 Masiero 2011ApJ...741...68M NEATM