value	unc_up	unc_lo	author	ref	method
18.31	1.080	1.080	Usui	2011PASJ...63.1117U	NEATM
19.14	0.186	0.186	Masiero	2011ApJ...741...68M	NEATM
20.31	4.060	4.060	Ali-Lagoa	2018A&A...612A..85A	NEATM