Trojan asteroid · 21900

Orus

Measurements

Effective diameter: 50.81 km
Semimajor axis: 5.123 AU
Orbital period: 4,235.772 Earth days

Orbit, physical values and uncertainties

eccentricity: .03672540559818106 ± 2.4466E-9
semi-major axis: 5.123374239403683 au ± 1.2166E-8
perihelion distance: 4.93521624243031 au ± 2.411E-8
inclination; angle with respect to x-y ecliptic plane: 8.468580378470353 deg ± 4.6004E-8
longitude of the ascending node: 258.5504431073313 deg ± 2.5443E-7
argument of perihelion: 182.7884930129634 deg ± 2.3383E-6
mean anomaly: 96.92267457127365 deg ± 2.3115E-6
time of perihelion passage: 2460060.104653438335 TDB ± 2.7031E-5
sidereal orbital period: 4235.77172811405 d ± 1.5088E-5
mean motion: .08499041570407942 deg/d ± 3.0273E-10
aphelion distance: 5.311532236377056 au ± 1.2613E-8
absolute magnitude: 10.04
diameter: 50.810 km ± 0.809
rotation period: 13.45 h
geometric albedo: 0.075 ± 0.014

Published JPL orbital elements describe their stated epoch; they are not current positions. Small-body diameters can be effective/model-dependent sizes, not spherical shapes. Missing measurements remain unavailable. Pluto’s diameter uses the New Horizons reference rather than an empty SBDB field. Orbital epoch: JD 2461200.5 TDB.

Object reference ↗

Missions & milestones

1 launches · 10 connected events

These are target-related flights and every connected programme record in the production catalogue. A connected event may concern another stage or target of the same journey. Launch outcome does not establish arrival or current operation.

CONNECTED EVENT · UPCOMING