value	unc_up	unc_lo	author	ref	method
7.39	0.710	0.710	Usui	2011PASJ...63.1117U	NEATM
7.81	1.560	1.560	Ali-Lagoa	2018A&A...612A..85A	NEATM
8.55	0.165	0.165	Masiero	2011ApJ...741...68M	NEATM