value	unc_up	unc_lo	author	ref	method
6.89	0.196	0.196	Masiero	2011ApJ...741...68M	NEATM
6.90	nan	nan	Ali-Lagoa	2016A&A...591A..14A	NEATM
7.60	nan	nan	Ali-Lagoa	2016A&A...591A..14A	NEATM