value	quality	siderealorsynodic	author	ref	method
50.0000	2	Synodic	Behrend	LCDB	Lightcurve
52.6752	2	Sidereal	Durech	2019A&A...631A...2D	Model
52.7000	2	Sidereal	Durech	2023A&A...675A..24D	Model
52.8000	3	Synodic	Piironen	1994A&AS..106..587P	Lightcurve