value	unc_up	unc_lo	author	ref	method
7.02	2.090	2.090	Nugent	2016AJ....152...63N	NEATM
7.30	2.225	2.225	Masiero	2017AJ....154..168M	NEATM
7.78	2.320	2.320	Masiero	2021PSJ.....2..162M	NEATM