value	unc_up	unc_lo	author	ref	method
10.64	2.990	2.990	Nugent	2016AJ....152...63N	NEATM
11.26	0.066	0.066	Masiero	2011ApJ...741...68M	NEATM
9.16	2.480	2.480	Masiero	2021PSJ.....2..162M	NEATM