Key Facts

Overview

5400 (1989 CM) is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1989 CM as potentially hazardous because its orbit does not bring it close to Earth.

1989 CM orbits the sun every 1,980 days (5.42 years), coming as close as 2.62 AU and reaching as far as 3.56 AU from the sun. 1989 CM is about 10.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Boston.

No Close Approaches

1989 CM's orbit is 1.63 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

1989 CM's orbit is determined by observations dating back to Aug. 27, 1954. It was last officially observed on June 19, 2023. The IAU Minor Planet Center records 2,772 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 1989 CM:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.088 AU
  • Eccentricity: 0.1519
  • Inclination: 0.55°
  • Longitude of Ascending Node: 26.2°
  • Argument of Periapsis: 27.68°
  • Mean Anomaly: 200.1°

Physical Characteristics

  • Diameter: 10.62300 km
  • Magnitude: 13.56
  • Albedo: 0.082

Derived Characteristics

  • Orbit Period: 1,980 days (5.42 years)
  • Avg. Orbit Speed: 16.97 km/s
  • Aphelion Distance: 3.56 AU
  • Perihelion Distance: 2.62 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 5400 (1989 CM) 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.