value	unc_up	unc_lo	author	ref	method
4.51	1.220	1.220	Nugent	2016AJ....152...63N	NEATM
4.62	1.030	1.030	Masiero	2021PSJ.....2..162M	NEATM
4.86	0.067	0.067	Masiero	2011ApJ...741...68M	NEATM