value unc_up unc_lo author ref method 0.168 0.0310 0.0310 Masiero 2011ApJ...741...68M NEATM 0.180 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM 0.190 0.0400 0.0400 Masiero 2014ApJ...791..121M NEATM