value	unc_up	unc_lo	author	ref	method
0.190	0.1300	0.1300	Nugent	2016AJ....152...63N	NEATM
0.271	0.0254	0.0254	Masiero	2011ApJ...741...68M	NEATM
0.387	0.0470	0.0470	Masiero	2012ApJ...759L...8M	NEATM