value	unc_up	unc_lo	author	ref	method
11.21	2.800	2.800	Nugent	2016AJ....152...63N	NEATM
12.22	5.070	5.070	Masiero	2021PSJ.....2..162M	NEATM
9.28	0.135	0.135	Masiero	2011ApJ...741...68M	NEATM