value	unc_up	unc_lo	author	ref	method
0.140	0.1000	0.1000	Nugent	2016AJ....152...63N	NEATM
0.158	0.0270	0.0270	Masiero	2012ApJ...759L...8M	NEATM
0.375	0.0519	0.0519	Masiero	2011ApJ...741...68M	NEATM