value	quality	siderealorsynodic	author	ref	method
3.9900	2+	Synodic	Ferrero	2011MPBu...38...49F	Lightcurve
3.9915	3	Synodic	Carbognani	2011MPBu...38...57C	Lightcurve
3.9917	3	Synodic	Behrend	LCDB	Lightcurve
3.9918	2	Sidereal	Durech	2020A&A...643A..59D	Model
3.9918	2	Sidereal	Durech	2023A&A...675A..24D	Model
3.9920	3-	Synodic	Klinglesmith	2016MPBu...43..234K	Lightcurve