value	quality	siderealorsynodic	author	ref	method
6.1875	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.1894	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve
6.6830	2+	Synodic	Behrend	LCDB	Lightcurve