value	unc_up	unc_lo	author	ref	method
0.190	0.0800	0.0800	Nugent	2016AJ....152...63N	NEATM
0.334	0.0600	0.0600	Masiero	2012ApJ...759L...8M	NEATM
0.440	0.0835	0.0835	Masiero	2011ApJ...741...68M	NEATM