value	quality	siderealorsynodic	author	ref	method
20.9000		Synodic	Weidenschilling	1990Icar...86..402W	Lightcurve
20.9000	2	Synodic	Goguen	1976Icar...29..137G	Lightcurve
20.9780	2	Synodic	Behrend	LCDB	Lightcurve
20.9849	2	Sidereal	Durech	2020A&A...643A..59D	Model
20.9910	3	Synodic	Harris	1999Icar..142..173H	Lightcurve
41.8000	2	Synodic	Debehogne	1980A&AS...42...85D	Lightcurve