value unc_up unc_lo author ref method 0.040 0.0400 0.0400 Nugent 2016AJ....152...63N NEATM 0.043 0.0200 0.0360 Masiero 2021PSJ.....2..162M NEATM 0.056 0.0370 0.0370 Masiero 2020PSJ.....1....5M NEATM 0.061 0.0270 0.0480 Masiero 2021PSJ.....2..162M NEATM 0.160 0.0038 0.0038 Masiero 2011ApJ...741...68M NEATM