value	unc_up	unc_lo	author	ref	method
3.42	1.198	1.198	Masiero	2017AJ....154..168M	NEATM
4.11	1.094	1.094	Masiero	2011ApJ...741...68M	NEATM
5.23	1.501	1.501	Masiero	2017AJ....154..168M	NEATM