value	unc_up	unc_lo	author	ref	method
0.050	0.0600	0.0600	Nugent	2016AJ....152...63N	NEATM
0.058	0.0080	0.0080	Masiero	2012ApJ...759L...8M	NEATM
0.088	0.0016	0.0016	Masiero	2011ApJ...741...68M	NEATM