value	unc_up	unc_lo	author	ref	method
4.31	1.300	1.300	Nugent	2016AJ....152...63N	NEATM
6.03	0.194	0.194	Masiero	2011ApJ...741...68M	NEATM
6.20	0.231	0.231	Masiero	2011ApJ...741...68M	NEATM