value	unc_up	unc_lo	author	ref	method
0.230	0.1600	0.1600	Nugent	2016AJ....152...63N	NEATM
0.269	0.0440	0.0440	Masiero	2012ApJ...759L...8M	NEATM
0.342	0.0560	0.0560	Masiero	2012ApJ...759L...8M	NEATM
0.378	0.0363	0.0363	Masiero	2011ApJ...741...68M	NEATM