Polydeuces is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: Polydeuces
- Satellite code: 634
- Physical parameters: not listed in the NASA/JPL planetary satellite physical parameters table
- Ephemeris: SAT441
- Reference frame: Laplace
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 377600. km
- Eccentricity e: 0.019
- Argument of periapsis ω: 94.1 deg
- Mean anomaly M: 359.0 deg
- Inclination i: 0.2 deg
- Longitude of ascending node: 167.5 deg
- Sidereal period P: 2.736916 days
- Argument of periapsis precession period: 5.810 yr
- Longitude of ascending node precession period: 11.692 yr
- Laplace-plane pole right ascension: 40.6 deg
- Laplace-plane pole declination: 83.5 deg
- Laplace-plane tilt: 0.0 deg
- Mean elements reference: 36