Key Facts

Overview

Concordia is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Concordia as potentially hazardous because its orbit does not bring it close to Earth.

Concordia orbits the sun every 1,620 days (4.44 years), coming as close as 2.58 AU and reaching as far as 2.82 AU from the sun. Concordia is about 106.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. state of Delaware.

The rotation of Concordia has been observed. It completes a rotation on its axis every 9.90 hours.

Concordia's spectral type C (Tholen) / Ch (SMASSII) indicates that it is likely to contain water, iron, nickel, cobalt, nitrogen, and ammonia.

No Close Approaches

Concordia's orbit is 1.58 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

Concordia's orbit is determined by observations dating back to Feb. 9, 1864. It was last officially observed on April 7, 2023. The IAU Minor Planet Center records 6,134 observations used to determine its orbit.

Accessibility and Exploration

This asteroid is not considered a viable target for human exploration by the NHATS study.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of Concordia:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.699 AU
  • Eccentricity: 0.0451
  • Inclination: 5.07°
  • Longitude of Ascending Node: 161.06°
  • Argument of Periapsis: 34.12°
  • Mean Anomaly: 290.47°

Physical Characteristics

  • Diameter: 106.51700 km
  • Magnitude: 9.07
  • Albedo: 0.044
  • Spectral type (Tholen): C
  • Spectral type (SMASS): Ch

Derived Characteristics

  • Orbit Period: 1,620 days (4.44 years)
  • Avg. Orbit Speed: 18.13 km/s
  • Aphelion Distance: 2.82 AU
  • Perihelion Distance: 2.58 AU
  • Rotation Period: 9.90 hours
  • Approx. Composition: water, iron, nickel, cobalt, nitrogen, and ammonia.

Map Comparison

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Orbit Simulation

Sky Map

The position of Concordia is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.