value unc_up unc_lo author ref method 2.74 0.670 0.670 Masiero 2020PSJ.....1....5M NEATM 3.26 0.740 0.740 Masiero 2012ApJ...759L...8M NEATM 3.62 0.153 0.153 Masiero 2011ApJ...741...68M NEATM