value quality siderealorsynodic author ref method 15.2000 2- Synodic Behrend LCDB Lightcurve 15.2609 2 Sidereal Hanus 2018Icar..299...84H Model 15.2609 2 Sidereal Hanus LCDB Model 15.2609 2 Sidereal Martikainen 2021A&A...649A..98M Model 15.2616 3 Synodic Behrend LCDB Lightcurve 15.3000 3 Synodic Di Martino LCDB Lightcurve