value unc_up unc_lo author ref method 0.273 0.1015 0.1015 Masiero 2011ApJ...741...68M NEATM 0.280 0.0300 0.0300 Masiero 2014ApJ...791..121M NEATM 0.290 0.0802 0.0802 Masiero 2011ApJ...741...68M NEATM 0.300 0.1300 0.1300 Nugent 2016AJ....152...63N NEATM 0.310 0.0900 0.0900 Masiero 2014ApJ...791..121M NEATM