Key Facts

Overview

86371 (1999 XZ234) is a mid-sized asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified 1999 XZ234 as potentially hazardous because its orbit does not bring it close to Earth.

1999 XZ234 orbits the sun every 2,400 days (6.57 years), coming as close as 3.40 AU and reaching as far as 3.62 AU from the sun. 1999 XZ234 is about 9.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

No Close Approaches

1999 XZ234's orbit is 2.42 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

1999 XZ234's orbit is determined by observations dating back to Dec. 3, 1999. It was last officially observed on May 18, 2021. The IAU Minor Planet Center records 1,073 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 1999 XZ234:

References

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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 3.508 AU
  • Eccentricity: 0.0306
  • Inclination: 11.13°
  • Longitude of Ascending Node: 94.35°
  • Argument of Periapsis: 8.28°
  • Mean Anomaly: 67.41°

Physical Characteristics

  • Diameter: 9.76600 km
  • Magnitude: 13.67
  • Albedo: 0.089

Derived Characteristics

  • Orbit Period: 2,400 days (6.57 years)
  • Avg. Orbit Speed: 15.90 km/s
  • Aphelion Distance: 3.62 AU
  • Perihelion Distance: 3.40 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 86371 (1999 XZ234) 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.