value unc_up unc_lo author ref method 0.130 0.0700 0.0700 Nugent 2016AJ....152...63N NEATM 0.140 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM 0.426 0.0925 0.0925 Masiero 2011ApJ...741...68M NEATM