value quality siderealorsynodic author ref method 5.6168 3- Synodic Behrend LCDB Lightcurve 5.6170 3 Synodic Behrend LCDB Lightcurve 5.6176 2 Sidereal Durech 2020A&A...643A..59D Model 6.3700 2 Synodic Malcolm 2002MPBu...29...28M Lightcurve