value	quality	siderealorsynodic	author	ref	method
31.9990	2	Sidereal	Durech	2016A&A...587A..48D	Model
32.0000	3	Synodic	Owings	2013MPBu...40....8O	Lightcurve
32.0070	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
32.0420	3-	Synodic	Klinglesmith	2012MPBu...39..109K	Lightcurve