value	unc_up	unc_lo	author	ref	method
0.160	0.0500	0.0500	Nugent	2016AJ....152...63N	NEATM
0.218	0.0380	0.0380	Masiero	2012ApJ...759L...8M	NEATM
0.292	0.1681	0.1681	Masiero	2011ApJ...741...68M	NEATM