value	unc_up	unc_lo	author	ref	method
6.15	0.470	0.470	Usui	2011PASJ...63.1117U	NEATM
6.53	0.580	0.580	Masiero	2014ApJ...791..121M	NEATM
6.63	1.330	1.330	Ali-Lagoa	2018A&A...612A..85A	NEATM
6.71	0.570	0.570	Masiero	2012ApJ...759L...8M	NEATM
7.83	0.077	0.077	Masiero	2011ApJ...741...68M	NEATM