value	quality	siderealorsynodic	author	ref	method
29.6400	2+	Synodic	Albers	2010MPBu...37..152A	Lightcurve
29.7600	2+	Synodic	Behrend	LCDB	Lightcurve
29.7660	2	Sidereal	Durech	2023A&A...675A..24D	Model