value unc_up unc_lo author ref method 6.16 1.470 1.470 Masiero 2020PSJ.....1....5M NEATM 7.87 0.314 0.314 Masiero 2011ApJ...741...68M NEATM 8.57 2.890 2.890 Masiero 2020PSJ.....1....5M NEATM