value	quality	siderealorsynodic	author	ref	method
12.0000	1	Synodic	Behrend	LCDB	Lightcurve
20.0000	2-	Synodic	Pravec	LCDB	Lightcurve
20.1514	2	Sidereal	Hanus	2016A&A...586A.108H	Model
233.4000	2	Synodic	Polakis	2020MPBu...47..314P	Lightcurve