value	unc_up	unc_lo	author	ref	method
18.56	3.710	3.710	Ali-Lagoa	2018A&A...612A..85A	NEATM
18.92	0.810	0.810	Usui	2011PASJ...63.1117U	NEATM
20.27	4.050	4.050	Ali-Lagoa	2018A&A...612A..85A	NEATM
20.49	0.100	0.100	Masiero	2011ApJ...741...68M	NEATM