value	unc_up	unc_lo	author	ref	method
4.03	1.060	1.060	Nugent	2016AJ....152...63N	NEATM
4.20	0.890	0.890	Masiero	2021PSJ.....2..162M	NEATM
4.62	1.394	1.394	Masiero	2011ApJ...741...68M	NEATM