value unc_up unc_lo author ref method 0.039 0.0167 0.0167 Masiero 2011ApJ...741...68M NEATM 0.040 0.0500 0.0500 Nugent 2016AJ....152...63N NEATM 0.044 0.0190 0.0340 Masiero 2021PSJ.....2..162M NEATM 0.051 0.0230 0.0410 Masiero 2021PSJ.....2..162M NEATM