Orthosie is a natural satellite of Jupiter in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Jupiter
- Satellite: Orthosie
- Satellite code: 535
- Physical parameters: not listed in the NASA/JPL planetary satellite physical parameters table
- Ephemeris: JUP347
- Reference frame: ecliptic
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 20897800. km
- Eccentricity e: 0.294
- Argument of periapsis ω: 244.7 deg
- Mean anomaly M: 161.1 deg
- Inclination i: 144.2 deg
- Longitude of ascending node: 212.4 deg
- Sidereal period P: 617.2347 days
- Argument of periapsis precession period: 89.5 yr
- Longitude of ascending node precession period: 116.2 yr
- Mean elements reference: 47