value unc_up unc_lo author ref method 5.95 1.830 1.830 Masiero 2020PSJ.....1....5M NEATM 6.33 0.075 0.075 Masiero 2011ApJ...741...68M NEATM 6.63 0.120 0.120 Masiero 2011ApJ...741...68M NEATM