value	unc_up	unc_lo	author	ref	method
17.62	1.750	1.750	Usui	2011PASJ...63.1117U	NEATM
17.94	5.890	5.890	Nugent	2016AJ....152...63N	NEATM
18.05	3.610	3.610	Ali-Lagoa	2018A&A...612A..85A	NEATM
19.69	0.235	0.235	Masiero	2011ApJ...741...68M	NEATM