value quality siderealorsynodic author ref method 12.2000 2 Synodic Behrend LCDB Lightcurve 12.2700 2 Sidereal Martikainen 2021A&A...649A..98M Model 12.2700 2 Sidereal Durech 2023A&A...675A..24D Model 12.2700 2 Sidereal Hanus 2013A&A...551A..67H Model 12.2830 3 Synodic Behrend LCDB Lightcurve 12.2900 2- Synodic Behrend LCDB Lightcurve