value	quality	siderealorsynodic	author	ref	method
20.2864	2	Sidereal	Durech	2023A&A...675A..24D	Model
20.2869	2	Sidereal	Durech	2018A&A...617A..57D	Model
20.2870	2	Synodic	Sada	2005MPBu...32...73S	Lightcurve
20.2910	2+	Synodic	Galad	2008MPBu...35..144G	Lightcurve
20.2990	3	Synodic	Behrend	LCDB	Lightcurve