value	unc_up	unc_lo	author	ref	method
0.210	0.0900	0.0900	Nugent	2016AJ....152...63N	NEATM
0.238	0.1890	0.1890	Masiero	2012ApJ...759L...8M	NEATM
0.299	0.0668	0.0668	Masiero	2011ApJ...741...68M	NEATM