value	unc_up	unc_lo	author	ref	method
0.150	0.0700	0.0700	Nugent	2016AJ....152...63N	NEATM
0.231	0.0280	0.0280	Masiero	2012ApJ...759L...8M	NEATM
0.232	0.0504	0.0504	Masiero	2011ApJ...741...68M	NEATM