value	unc_up	unc_lo	author	ref	method
4.14	0.810	0.810	Nugent	2016AJ....152...63N	NEATM
4.53	0.270	0.270	Masiero	2012ApJ...759L...8M	NEATM
4.61	0.303	0.303	Masiero	2011ApJ...741...68M	NEATM