value unc_up unc_lo author ref method 2.84 0.630 0.630 Masiero 2021PSJ.....2..162M NEATM 3.02 0.700 0.700 Masiero 2020PSJ.....1....5M NEATM 3.32 0.850 0.850 Masiero 2021PSJ.....2..162M NEATM 3.74 0.700 0.700 Masiero 2012ApJ...759L...8M NEATM 3.86 0.071 0.071 Masiero 2011ApJ...741...68M NEATM