value	unc_up	unc_lo	author	ref	method
7.11	0.350	0.350	Usui	2011PASJ...63.1117U	NEATM
7.51	0.750	0.750	Ali-Lagoa	2018A&A...612A..85A	NEATM
7.94	0.230	0.230	Masiero	2012ApJ...759L...8M	NEATM