value	unc_up	unc_lo	author	ref	method
3.95	0.660	0.660	Nugent	2016AJ....152...63N	NEATM
4.28	0.980	0.980	Masiero	2021PSJ.....2..162M	NEATM
4.44	0.062	0.062	Masiero	2011ApJ...741...68M	NEATM