value quality siderealorsynodic author ref method 122.6200 2 Sidereal Durech 2020A&A...643A..59D Model 122.6228 2 Sidereal Martikainen 2021A&A...649A..98M Model 122.6400 2 Sidereal Durech 2023A&A...675A..24D Model 6.3227 2 Synodic Bembrick 2007MPBu...34...27B Lightcurve 9.1000 2 Synodic Behrend LCDB Lightcurve