value	unc_up	unc_lo	author	ref	method
6.21	0.040	0.040	Masiero	2014ApJ...791..121M	NEATM
6.26	0.062	0.062	Masiero	2011ApJ...741...68M	NEATM
6.78	1.610	1.610	Nugent	2016AJ....152...63N	NEATM