value	quality	siderealorsynodic	author	ref	method
6.8191	3	Synodic	Warner	2006MPBu...33...35W	Lightcurve
6.8204	2	Sidereal	Martikainen	2021A&A...649A..98M	Model
6.8204	2	Sidereal	Hanus	2013A&A...551A..67H	Model
6.8210	3	Synodic	Behrend	LCDB	Lightcurve
6.8216	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve