value unc_up unc_lo author ref method 0.059 0.0083 0.0083 Masiero 2011ApJ...741...68M NEATM 0.070 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM 0.089 0.0600 0.0600 Masiero 2012ApJ...759L...8M NEATM