value	quality	siderealorsynodic	author	ref	method
8.1771	2	Sidereal	Durech	2020A&A...643A..59D	Model
8.1771	2	Sidereal	Durech	2023A&A...675A..24D	Model
8.1938	3-	Synodic	Michalik	2016MPBu...43..202M	Lightcurve