value	quality	siderealorsynodic	author	ref	method
20.5550	2	Synodic	Di Martino	1994Icar..107..269D	Lightcurve
20.5550	3	Synodic	Shevchenko	1992Icar..100..295S	Lightcurve
20.5650	2	Synodic	Behrend	LCDB	Lightcurve
20.5699	3	Synodic	Behrend	LCDB	Lightcurve
20.5700	2	Synodic	Behrend	LCDB	Lightcurve
20.5725	2	Sidereal	Martikainen	2021A&A...649A..98M	Model
20.5726	2	Sidereal	Hanus	2011A&A...530A.134H	Model
20.5726	2	Sidereal	Hanus	2013A&A...559A.134H	Model
20.5727	2	Sidereal	Durech	2009A&A...493..291D	Model
20.5804	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve