value	unc_up	unc_lo	author	ref	method
6.12	1.490	1.490	Nugent	2016AJ....152...63N	NEATM
6.88	2.080	2.080	Masiero	2021PSJ.....2..162M	NEATM
8.58	0.058	0.058	Masiero	2011ApJ...741...68M	NEATM