value unc_up unc_lo author ref method 0.321 0.0125 0.0125 Masiero 2011ApJ...741...68M NEATM 0.360 0.1000 0.1000 Masiero 2014ApJ...791..121M NEATM 0.366 0.0470 0.0470 Masiero 2012ApJ...759L...8M NEATM