value unc_up unc_lo author ref method 6.57 1.880 1.880 Masiero 2020PSJ.....1....5M NEATM 8.59 0.169 0.169 Masiero 2011ApJ...741...68M NEATM 8.76 2.410 2.410 Masiero 2020PSJ.....1....5M NEATM