value	unc_up	unc_lo	author	ref	method
0.280	0.0800	0.0800	Nugent	2016AJ....152...63N	NEATM
0.314	0.0463	0.0463	Masiero	2011ApJ...741...68M	NEATM
0.335	0.0680	0.0680	Masiero	2012ApJ...759L...8M	NEATM