value	unc_up	unc_lo	author	ref	method
7.21	nan	nan	Stephens	2003MPBu...30....1S	Lightcurve
7.22	nan	nan	Pal	2020ApJS..247...26P	Lightcurve
7.22	nan	nan	Durech	2023A&A...675A..24D	Model
7.22	nan	nan	Hanus	2018Icar..309..297H	Model
7.22	nan	nan	Durech	2019A&A...631A...2D	Model