value	unc_up	unc_lo	author	ref	method
6.02	1.344	1.344	Masiero	2017AJ....154..168M	NEATM
7.82	1.950	1.950	Masiero	2020PSJ.....1....5M	NEATM
9.29	2.740	2.740	Masiero	2021PSJ.....2..162M	NEATM
9.47	2.640	2.640	Nugent	2016AJ....152...63N	NEATM