value	quality	siderealorsynodic	author	ref	method
6.4910	2	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve
6.4913	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.4913	2	Sidereal	Durech	2016A&A...587A..48D	Model