value	unc_up	unc_lo	author	ref	method
5.51	1.377	1.377	Masiero	2017AJ....154..168M	NEATM
5.96	1.380	1.380	Masiero	2021PSJ.....2..162M	NEATM
6.56	2.340	2.340	Masiero	2021PSJ.....2..162M	NEATM
6.65	2.090	2.090	Nugent	2016AJ....152...63N	NEATM