value	unc_up	unc_lo	author	ref	method
8.37	2.550	2.550	Nugent	2016AJ....152...63N	NEATM
8.44	2.240	2.240	Masiero	2012ApJ...759L...8M	NEATM
9.19	0.035	0.035	Masiero	2011ApJ...741...68M	NEATM