value	quality	siderealorsynodic	author	ref	method
8.1572	2	Sidereal	Durech	2020A&A...643A..59D	Model
8.1572	2	Sidereal	Durech	2023A&A...675A..24D	Model
8.1580	2	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve
8.1580	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve