value	quality	siderealorsynodic	author	ref	method
9.2000	2	Synodic	Behrend	LCDB	Lightcurve
9.4700	3	Synodic	Stephens	2001MPBu...28...56S	Lightcurve
9.4775	2	Sidereal	Durech	2019A&A...631A...2D	Model