value	unc_up	unc_lo	author	ref	method
2.85	0.450	0.450	Nugent	2016AJ....152...63N	NEATM
3.26	0.190	0.190	Masiero	2012ApJ...759L...8M	NEATM
4.36	0.064	0.064	Masiero	2011ApJ...741...68M	NEATM