value	quality	siderealorsynodic	author	ref	method
19.8697	2	Sidereal	Durech	2020A&A...643A..59D	Model
19.8697	2	Sidereal	Durech	2023A&A...675A..24D	Model
19.8720	3	Synodic	Pravec	LCDB	Lightcurve
19.8740	2	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve
19.8750	3-	Synodic	Benishek	2016MPBu...43..339B	Lightcurve
19.8750	3-	Synodic	Klinglesmith	2016MPBu...43..123K	Lightcurve