value unc_up unc_lo author ref method 0.177 0.0344 0.0344 Masiero 2011ApJ...741...68M NEATM 0.310 0.1700 0.1700 Nugent 2016AJ....152...63N NEATM 0.374 0.1180 0.1180 Masiero 2012ApJ...759L...8M NEATM