value	unc_up	unc_lo	author	ref	method
6.39	0.040	0.040	Masiero	2014ApJ...791..121M	NEATM
6.94	0.081	0.081	Masiero	2011ApJ...741...68M	NEATM
7.35	1.470	1.470	Ali-Lagoa	2018A&A...612A..85A	NEATM
7.65	0.490	0.490	Usui	2011PASJ...63.1117U	NEATM