value	quality	siderealorsynodic	author	ref	method
10.0000	1	Synodic	Behrend	LCDB	Lightcurve
17.9200	3-	Synodic	Warner	2011MPBu...38...96W	Lightcurve
17.9400	2	Synodic	Warner	2004MPBu...31...19W	Lightcurve