value	quality	siderealorsynodic	author	ref	method
6.5818	2	Sidereal	Durech	2019A&A...631A...2D	Model
6.5819	2+	Synodic	Mottola	2011AJ....141..170M	Lightcurve
6.5820	2	Synodic	Polakis	2021MPBu...48..144P	Lightcurve
6.5820	3	Synodic	Stephens	2021MPBu...48...13S	Lightcurve
6.5900	2+	Synodic	French	2012MPBu...39..183F	Lightcurve
6.5900	2+	Synodic	Stephens	2014MPBu...41..210S	Lightcurve
6.5920	3	Synodic	Stephens	2009MPBu...36...59S	Lightcurve
7.0000	1	Synodic	Taylor	1971NASSP.267..117T	Lightcurve
8.0000	1	Synodic	Dunlap	1969AJ.....74..796D	Lightcurve