value unc_up unc_lo author ref method 6.74 1.740 1.740 Masiero 2020PSJ.....1....5M NEATM 8.06 0.280 0.280 Masiero 2012ApJ...759L...8M NEATM 8.10 2.420 2.420 Masiero 2020PSJ.....1....5M NEATM