value	unc_up	unc_lo	author	ref	method
5.86	1.420	1.420	Masiero	2021PSJ.....2..162M	NEATM
6.28	1.564	1.564	Masiero	2017AJ....154..168M	NEATM
6.89	0.248	0.248	Masiero	2011ApJ...741...68M	NEATM
7.40	nan	nan	Ali-Lagoa	2016A&A...591A..14A	NEATM