Greip is a natural satellite of Saturn in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Saturn
- Satellite: Greip
- Satellite code: 651
- 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: 18380000. km
- Eccentricity e: 0.317
- Argument of periapsis ω: 146.2 deg
- Mean anomaly M: 355.9 deg
- Inclination i: 174.2 deg
- Longitude of ascending node: 335.8 deg
- Sidereal period P: 930.4389 days
- Argument of periapsis precession period: 212.7 yr
- Longitude of ascending node precession period: 376.1 yr
- Mean elements reference: 48