value	quality	siderealorsynodic	author	ref	method
4.2180	3	Synodic	Warner	2017MPBu...44...22W	Lightcurve
4.2190	3	Synodic	Warner	2017MPBu...44..223W	Lightcurve
4.2220	3	Synodic	Pravec	LCDB	Lightcurve
4.2340	2+	Synodic	Vaduvescu	2017EM&P..120...41V	Lightcurve