Key Facts

Overview

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

Fukushima orbits the sun every 1,390 days (3.81 years), coming as close as 2.34 AU and reaching as far as 2.54 AU from the sun. Fukushima is about 22.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Fukushima has been observed. It completes a rotation on its axis every 9.42 hours.

No Close Approaches

Fukushima's orbit is 1.34 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

Fukushima's orbit is determined by observations dating back to April 13, 1926. It was last officially observed on Dec. 3, 2022. The IAU Minor Planet Center records 3,717 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 Fukushima:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.44 AU
  • Eccentricity: 0.0417
  • Inclination: 14.42°
  • Longitude of Ascending Node: 173.44°
  • Argument of Periapsis: 145.14°
  • Mean Anomaly: 86.24°

Physical Characteristics

  • Diameter: 21.99300 km
  • Magnitude: 12.43
  • Albedo: 0.051

Derived Characteristics

  • Orbit Period: 1,390 days (3.81 years)
  • Avg. Orbit Speed: 19.10 km/s
  • Aphelion Distance: 2.54 AU
  • Perihelion Distance: 2.34 AU
  • Rotation Period: 9.42 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Fukushima 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.