value	quality	siderealorsynodic	author	ref	method
2.8410	3	Synodic	Benishek	LCDB	Lightcurve
2.8410	3	Synodic	Dose	2022MPBu...49...44D	Lightcurve
2.8420	2+	Synodic	Brincat	2017MPBu...44R...1B	Lightcurve