value	quality	siderealorsynodic	author	ref	method
6.7589	2	Sidereal	Durech	2020A&A...643A..59D	Model
6.7589	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.7592	3	Synodic	Odden	2012MPBu...39..236O	Lightcurve
6.8000	2+	Synodic	Moravec	2012MPBu...39..213M	Lightcurve