value unc_up unc_lo author ref method 0.55 nan nan Delbo 2003Icar..166..116D RADIOMETRY_NEATM 0.96 0.011 0.011 Mainzer 2011ApJ...743..156M NEATM 0.97 0.108 0.108 Mainzer 2011ApJ...743..156M NEATM