value unc_up unc_lo author ref method 2.71 0.620 0.620 Masiero 2020PSJ.....1....5M NEATM 2.77 0.129 0.129 Masiero 2011ApJ...741...68M NEATM 3.05 0.650 0.650 Masiero 2012ApJ...759L...8M NEATM