value	quality	siderealorsynodic	author	ref	method
2.9950	2	Synodic	Waszczak	2015AJ....150...75W	Lightcurve
2.9950	3	Synodic	Casalnuovo	2014MPBu...41...85C	Lightcurve
2.9951	2	Sidereal	Durech	2023A&A...675A..24D	Model
2.9951	2	Sidereal	Durech	2019A&A...631A...2D	Model