value unc_up unc_lo author ref method 11.16 0.176 0.176 Masiero 2011ApJ...741...68M NEATM 15.47 4.990 4.990 Masiero 2020PSJ.....1....5M NEATM 17.86 4.660 4.660 Masiero 2012ApJ...759L...8M NEATM