value	unc_up	unc_lo	author	ref	method
4.17	1.000	1.000	Nugent	2016AJ....152...63N	NEATM
4.32	1.270	1.270	Masiero	2021PSJ.....2..162M	NEATM
5.58	1.660	1.660	Masiero	2012ApJ...759L...8M	NEATM