S2019_S_31 is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: S2019_S_31
- Satellite code: 65188
- Physical parameters: not listed in the NASA/JPL planetary satellite physical parameters table
- Ephemeris: SAT455
- Reference frame: ecliptic
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 17739100. km
- Eccentricity e: 0.488
- Argument of periapsis ω: 37.8 deg
- Mean anomaly M: 35.2 deg
- Inclination i: 39.8 deg
- Longitude of ascending node: 173.7 deg
- Sidereal period P: 882.2410 days
- Argument of periapsis precession period: 373.9 yr
- Longitude of ascending node precession period: 392.4 yr
- Mean elements reference: 46