value	unc_up	unc_lo	author	ref	method
0.244	0.1375	0.1375	Masiero	2017AJ....154..168M	NEATM
0.250	0.1200	0.1200	Nugent	2016AJ....152...63N	NEATM
0.263	0.0451	0.0451	Masiero	2011ApJ...741...68M	NEATM