value	quality	siderealorsynodic	author	ref	method
18.1840	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
18.1866	2	Sidereal	Durech	2023A&A...675A..24D	Model
18.1867	2	Sidereal	Durech	2019A&A...631A...2D	Model
18.1900	2	Synodic	Erasmus	2020ApJS..247...13E	Lightcurve