value quality siderealorsynodic author ref method 15.7048 3 Synodic Behrend LCDB Lightcurve 15.7095 3 Synodic Behrend LCDB Lightcurve 15.7096 2 Sidereal Martikainen 2021A&A...649A..98M Model 15.7097 2 Sidereal Hanus 2013A&A...551A..67H Model