value quality siderealorsynodic author ref method 11.0000 1 Synodic Lagerkvist 1978A&AS...31..361L Lightcurve 11.0815 3- Synodic Foylan 2017MPBu...44...11F Lightcurve 11.0870 3 Synodic Mansego 2016MPBu...43..332M Lightcurve 11.0887 2 Sidereal Hanus 2013A&A...551A..67H Model 11.1670 2 Synodic Waszczak 2015AJ....150...75W Lightcurve