value	unc_up	unc_lo	author	ref	method
7.43	0.610	0.610	Usui	2011PASJ...63.1117U	NEATM
7.89	1.580	1.580	Ali-Lagoa	2018A&A...612A..85A	NEATM
8.44	0.230	0.230	Masiero	2012ApJ...759L...8M	NEATM