value	unc_up	unc_lo	author	ref	method
13.18	4.350	4.350	Nugent	2016AJ....152...63N	NEATM
15.68	4.470	4.470	Nugent	2016AJ....152...63N	NEATM
16.76	0.194	0.194	Masiero	2011ApJ...741...68M	NEATM