value	unc_up	unc_lo	author	ref	method
5.40	1.100	1.100	Nugent	2016AJ....152...63N	NEATM
6.11	0.180	0.180	Masiero	2011ApJ...741...68M	NEATM
7.08	0.180	0.180	Masiero	2012ApJ...759L...8M	NEATM