value	quality	siderealorsynodic	author	ref	method
2.8158	2+	Synodic	Pravec	LCDB	Lightcurve
2.8158	2+	Synodic	Pray	2007MPBu...34...44P	Lightcurve
2.8162	3	Synodic	Pravec	LCDB	Lightcurve