value	unc_up	unc_lo	author	ref	method
2.28	0.460	0.460	Nugent	2016AJ....152...63N	NEATM
2.69	0.590	0.590	Masiero	2021PSJ.....2..162M	NEATM
3.12	0.545	0.545	Masiero	2011ApJ...741...68M	NEATM