value	quality	siderealorsynodic	author	ref	method
30.9476	2	Sidereal	Durech	2019A&A...631A...2D	Model
30.9480	2	Sidereal	Durech	2023A&A...675A..24D	Model
30.9620	2+	Synodic	Salvaggio	2017MPBu...44...57S	Lightcurve