value	quality	siderealorsynodic	author	ref	method
6.8280	3	Synodic	Pray	2008MPBu...35...34P	Lightcurve
6.8289	2	Sidereal	Durech	2020A&A...643A..59D	Model
6.8300	2	Synodic	Yeh	2020AJ....160...73Y	Lightcurve