value quality siderealorsynodic author ref method 11.5000 1 Synodic Behrend LCDB Lightcurve 11.5460 2 Synodic Behrend LCDB Lightcurve 23.0800 3 Synodic Harris 1989Icar...81..314H Lightcurve 23.1600 2 Synodic Lagerkvist 1981A&AS...45..177L Lightcurve