value	unc_up	unc_lo	author	ref	method
0.310	0.1900	0.1900	Nugent	2016AJ....152...63N	NEATM
0.318	0.0310	0.0310	Masiero	2012ApJ...759L...8M	NEATM
0.363	0.0808	0.0808	Masiero	2011ApJ...741...68M	NEATM
0.390	0.0800	0.0800	Masiero	2014ApJ...791..121M	NEATM