value unc_up unc_lo author ref method 16.13 1.750 1.750 Usui 2011PASJ...63.1117U NEATM 16.58 3.320 3.320 Ali-Lagoa 2018A&A...612A..85A NEATM 20.21 6.320 6.320 Nugent 2016AJ....152...63N NEATM 21.88 6.397 6.397 Masiero 2017AJ....154..168M NEATM 22.94 3.810 3.810 Masiero 2012ApJ...759L...8M NEATM