value	quality	siderealorsynodic	author	ref	method
31.8300	3	Synodic	Warner	2007MPBu...34...72W	Lightcurve
31.8661	2	Sidereal	Durech	2016A&A...587A..48D	Model
31.8661	2	Sidereal	Wang	2021AN....342..914W	Model