value unc_up unc_lo author ref method 14.36 0.190 0.190 Masiero 2014ApJ...791..121M NEATM 15.41 0.204 0.204 Masiero 2011ApJ...741...68M NEATM 17.94 5.730 5.730 Nugent 2016AJ....152...63N NEATM 19.23 3.850 3.850 Ali-Lagoa 2018A&A...612A..85A NEATM 20.50 1.140 1.140 Usui 2011PASJ...63.1117U NEATM