value quality siderealorsynodic author ref method 10.6670 2 Sidereal Durech LCDB Model 10.6600 2 Synodic Behrend LCDB Lightcurve 10.6600 2 Synodic Behrend LCDB Lightcurve 10.6600 2+ Synodic Ferrais 2022MPBu...49..307F Lightcurve 10.6630 Synodic Hainaut Rouelle 1995A&AS..112..125H Lightcurve 10.6665 2 Synodic Behrend LCDB Lightcurve 10.6670 2 Sidereal Hanus 2011A&A...530A.134H Model 10.6670 2 Sidereal Hanus 2016A&A...586A.108H Model 10.6670 2 Sidereal Martikainen 2021A&A...649A..98M Model 10.6670 2 Sidereal Vernazza 2021A&A...654A..56V Model 10.6671 2 Sidereal Durech 2023A&A...675A..24D Model 10.6700 3 Synodic Harris 1999Icar..142..173H Lightcurve