value	quality	siderealorsynodic	author	ref	method
9.7996	2	Sidereal	Durech	2016A&A...587A..48D	Model
9.7997	2	Sidereal	Durech	2023A&A...675A..24D	Model
9.8004	3	Synodic	Benishek	2010MPBu...37...64B	Lightcurve
9.8150	3	Synodic	Behrend	LCDB	Lightcurve