value	unc_up	unc_lo	author	ref	method
13.73	4.130	4.130	Nugent	2016AJ....152...63N	NEATM
16.95	0.180	0.180	Masiero	2014ApJ...791..121M	NEATM
17.19	0.269	0.269	Masiero	2011ApJ...741...68M	NEATM