value	quality	siderealorsynodic	author	ref	method
30.9090	2	Sidereal	Durech	2023A&A...675A..24D	Model
30.9112	2	Sidereal	Martikainen	2021A&A...649A..98M	Model
30.9114	2	Sidereal	Durech	2018A&A...617A..57D	Model
31.0100	2+	Synodic	Behrend	LCDB	Lightcurve