Key Facts

Overview

Toshihanda is a large asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified Toshihanda as potentially hazardous because its orbit does not bring it close to Earth.

Toshihanda orbits the sun every 2,890 days (7.91 years), coming as close as 3.20 AU and reaching as far as 4.74 AU from the sun. Toshihanda is about 23.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Toshihanda has been observed. It completes a rotation on its axis every 36.30 hours.

No Close Approaches

Toshihanda's orbit is 2.22 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

Toshihanda's orbit is determined by observations dating back to Feb. 13, 1955. It was last officially observed on Nov. 19, 2022. The IAU Minor Planet Center records 2,460 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 Toshihanda:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.973 AU
  • Eccentricity: 0.1937
  • Inclination: 12.37°
  • Longitude of Ascending Node: 77.14°
  • Argument of Periapsis: 12.33°
  • Mean Anomaly: 282.49°

Physical Characteristics

  • Diameter: 23.83300 km
  • Magnitude: 11.96
  • Albedo: 0.065

Derived Characteristics

  • Orbit Period: 2,890 days (7.91 years)
  • Avg. Orbit Speed: 14.96 km/s
  • Aphelion Distance: 4.74 AU
  • Perihelion Distance: 3.20 AU
  • Rotation Period: 36.30 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Toshihanda 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.