value unc_up unc_lo author ref method 0.201 0.0310 0.0310 Masiero 2011ApJ...741...68M NEATM 0.380 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.450 0.1800 0.1800 Nugent 2016AJ....152...63N NEATM