value unc_up unc_lo author ref method 2.72 0.670 0.670 Masiero 2020PSJ.....1....5M NEATM 2.74 0.310 0.310 Masiero 2012ApJ...759L...8M NEATM 3.69 0.144 0.144 Masiero 2011ApJ...741...68M NEATM