value	quality	siderealorsynodic	author	ref	method
18.0500	3-	Synodic	Colazo	2020MPBu...47..188C	Lightcurve
18.0610	3-	Synodic	Benishek	2018MPBu...45...82B	Lightcurve
18.0740	2	Synodic	Sheridan	2002MPBu...29...32S	Lightcurve