value unc_up unc_lo author ref method 2.98 0.770 0.770 Masiero 2020PSJ.....1....5M NEATM 3.13 0.180 0.180 Masiero 2011ApJ...741...68M NEATM 3.82 1.760 1.760 Masiero 2012ApJ...759L...8M NEATM