value	unc_up	unc_lo	author	ref	method
0.150	0.1300	0.1300	Nugent	2016AJ....152...63N	NEATM
0.187	0.0210	0.0210	Masiero	2012ApJ...759L...8M	NEATM
0.224	0.0478	0.0478	Masiero	2011ApJ...741...68M	NEATM