value	quality	siderealorsynodic	author	ref	method
6.3890	2	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve
6.3901	2	Sidereal	Durech	2023A&A...675A..24D	Model
6.3901	2	Sidereal	Durech	2020A&A...643A..59D	Model