value unc_up unc_lo author ref method 0.180 0.1000 0.1000 Nugent 2016AJ....152...63N NEATM 0.200 0.0900 0.0900 Nugent 2016AJ....152...63N NEATM 0.273 0.0370 0.0370 Masiero 2012ApJ...759L...8M NEATM 0.329 0.0497 0.0497 Masiero 2011ApJ...741...68M NEATM 0.450 0.0800 0.0800 Masiero 2014ApJ...791..121M NEATM