value	quality	siderealorsynodic	author	ref	method
21.9200	2	Sidereal	Durech	2023A&A...675A..24D	Model
21.9213	2	Sidereal	Durech	2019A&A...631A...2D	Model
21.9220	2	Sidereal	Durech	2018A&A...620A..91D	Model
21.9352	3-	Synodic	Behrend	LCDB	Lightcurve