Erriapus is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: Erriapus
- Satellite code: 628
- Physical parameters: not listed in the NASA/JPL planetary satellite physical parameters table
- Ephemeris: SAT456
- Reference frame: ecliptic
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 17506900. km
- Eccentricity e: 0.475
- Argument of periapsis ω: 279.8 deg
- Mean anomaly M: 14.3 deg
- Inclination i: 37.1 deg
- Longitude of ascending node: 146.2 deg
- Sidereal period P: 864.9236 days
- Argument of periapsis precession period: 362.1 yr
- Longitude of ascending node precession period: 407.8 yr
- Mean elements reference: 48