value	unc_up	unc_lo	author	ref	method
4.40	1.310	1.310	Nugent	2016AJ....152...63N	NEATM
5.13	1.140	1.140	Masiero	2021PSJ.....2..162M	NEATM
7.72	0.436	0.436	Masiero	2011ApJ...741...68M	NEATM