value	unc_up	unc_lo	author	ref	method
0.250	0.1400	0.1400	Nugent	2016AJ....152...63N	NEATM
0.329	0.0430	0.0430	Masiero	2012ApJ...759L...8M	NEATM
0.381	0.0919	0.0919	Masiero	2011ApJ...741...68M	NEATM