value	quality	siderealorsynodic	author	ref	method
417.7000	3	Synodic	Mottola	1995P&SS...43.1609M	Lightcurve
418.0000	3	Synodic	Pravec	2005Icar..173..108P	Lightcurve
420.0600	2	Sidereal	Durech	2020A&A...643A..59D	Model
420.1026	2	Sidereal	Martikainen	2021A&A...649A..98M	Model