value	quality	siderealorsynodic	author	ref	method
18.1400	2	Synodic	Hoffmann	1993AcA....43...61H	Lightcurve
27.3099	3-	Synodic	Larsen	2014MPBu...41...68L	Lightcurve
27.4000	2	Synodic	Erikson	2000Icar..147..487E	Lightcurve