value unc_up unc_lo author ref method 14.34 2.870 2.870 Ali-Lagoa 2018A&A...612A..85A NEATM 16.46 1.070 1.070 Usui 2011PASJ...63.1117U NEATM 19.12 3.820 3.820 Ali-Lagoa 2018A&A...612A..85A NEATM 19.32 2.720 2.720 Masiero 2012ApJ...759L...8M NEATM 20.78 1.900 1.900 Tedesco 2002AJ....123.1056T STM