value	unc_up	unc_lo	author	ref	method
0.150	0.0800	0.0800	Nugent	2016AJ....152...63N	NEATM
0.179	0.0290	0.0290	Masiero	2012ApJ...759L...8M	NEATM
0.269	0.0738	0.0738	Masiero	2011ApJ...741...68M	NEATM
0.330	0.1000	0.1000	Masiero	2014ApJ...791..121M	NEATM