value unc_up unc_lo author ref method 0.258 0.0507 0.0507 Masiero 2011ApJ...741...68M NEATM 0.285 0.1020 0.1020 Masiero 2012ApJ...759L...8M NEATM 0.310 0.1200 0.1200 Nugent 2016AJ....152...63N NEATM