value	unc_up	unc_lo	author	ref	method
6.27	0.233	0.233	Masiero	2011ApJ...741...68M	NEATM
6.59	0.262	0.262	Masiero	2011ApJ...741...68M	NEATM
7.59	0.600	0.600	Tedesco	2002AJ....123.1056T	STM