value	quality	siderealorsynodic	author	ref	method
12.4540	2	Synodic	Behrend	LCDB	Lightcurve
18.7900	2	Synodic	Pligge	2011MPBu...38....5P	Lightcurve
18.8003	2	Sidereal	Durech	2020A&A...643A..59D	Model
18.8590	2	Synodic	Dose	2023MPBu...50..151D	Lightcurve