value	quality	siderealorsynodic	author	ref	method
31.7300	3-	Synodic	Behrend	LCDB	Lightcurve
31.8930	3	Synodic	Pilcher	2008MPBu...35...51P	Lightcurve
31.9000	3	Synodic	Pilcher	2010MPBu...37..119P	Lightcurve
31.9009	2	Sidereal	Hanus	2016A&A...586A.108H	Model
31.9620	2+	Synodic	Pilcher	2009MPBu...36...52P	Lightcurve
32.0000	2	Synodic	Weidenschilling	1990Icar...86..402W	Lightcurve