value	quality	siderealorsynodic	author	ref	method
3.8510	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
3.8600	2	Synodic	Chang	2015ApJS..219...27C	Lightcurve
7.6994	2	Synodic	Pravec	LCDB	Lightcurve