value	unc_up	unc_lo	author	ref	method
6.46	1.240	1.240	Nugent	2016AJ....152...63N	NEATM
8.23	0.860	0.860	Usui	2011PASJ...63.1117U	NEATM
8.40	1.680	1.680	Ali-Lagoa	2018A&A...612A..85A	NEATM