S2019_S_42 is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: S2019_S_42
- Satellite code: 65199
- 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: 24111600. km
- Eccentricity e: 0.121
- Argument of periapsis ω: 84.5 deg
- Mean anomaly M: 351.4 deg
- Inclination i: 163.2 deg
- Longitude of ascending node: 318.2 deg
- Sidereal period P: 1397.9750 days
- Argument of periapsis precession period: 172.4 yr
- Longitude of ascending node precession period: 317.1 yr
- Mean elements reference: 46