value	unc_up	unc_lo	author	ref	method
0.140	0.0900	0.0900	Nugent	2016AJ....152...63N	NEATM
0.225	0.0250	0.0250	Masiero	2012ApJ...759L...8M	NEATM
0.415	0.0966	0.0966	Masiero	2011ApJ...741...68M	NEATM
0.470	0.0700	0.0700	Masiero	2014ApJ...791..121M	NEATM