value	quality	siderealorsynodic	author	ref	method
10.9379	2	Sidereal	Hanus	2016A&A...586A.108H	Model
10.9380	2	Sidereal	Martikainen	2021A&A...649A..98M	Model
10.9413	2	Sidereal	Hanus	2011A&A...530A.134H	Model
10.9430	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
10.9600	2	Synodic	Binzel	1987Icar...72..135B	Lightcurve
21.2741	2	Synodic	Pal	2020ApJS..247...26P	Lightcurve