value quality siderealorsynodic author ref method 20.7900 2- Synodic Behrend LCDB Lightcurve 20.7900 3 Synodic Behrend LCDB Lightcurve 20.8867 2 Sidereal Durech 2020A&A...643A..59D Model 20.9900 3 Synodic Aznar LCDB Lightcurve 9.1700 2- Synodic Bonzo 2010MPBu...37...93B Lightcurve