value unc_up unc_lo author ref method 0.064 0.0660 0.0660 Masiero 2020PSJ.....1....5M NEATM 0.066 0.0227 0.0227 Masiero 2011ApJ...741...68M NEATM 0.083 0.0480 0.0480 Masiero 2020PSJ.....1....5M NEATM