value	unc_up	unc_lo	author	ref	method
6.04	0.800	0.800	Usui	2011PASJ...63.1117U	NEATM
6.38	1.280	1.280	Ali-Lagoa	2018A&A...612A..85A	NEATM
7.74	0.060	0.060	Masiero	2014ApJ...791..121M	NEATM
8.29	0.157	0.157	Masiero	2011ApJ...741...68M	NEATM