value	quality	siderealorsynodic	author	ref	method
18.4720	3	Synodic	Buchheim	2007MPBu...34...13B	Lightcurve
18.4759	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
18.4842	2	Sidereal	Durech	2020A&A...643A..59D	Model
21.0000	2	Synodic	Behrend	LCDB	Lightcurve
21.6000	2-	Synodic	Behrend	LCDB	Lightcurve