Key Facts

Overview

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

Yoshitomo orbits the sun every 1,360 days (3.72 years), coming as close as 1.93 AU and reaching as far as 2.86 AU from the sun. Yoshitomo is about 13.3 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.

The rotation of Yoshitomo has been observed. It completes a rotation on its axis every 260.44 hours.

No Close Approaches

Yoshitomo's orbit is 0.95 AU from Earth's orbit at its closest point. This means that there is a very 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

Yoshitomo's orbit is determined by observations dating back to Aug. 15, 1953. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 3,892 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 Yoshitomo:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.397 AU
  • Eccentricity: 0.1949
  • Inclination: 5.86°
  • Longitude of Ascending Node: 286.32°
  • Argument of Periapsis: 211.49°
  • Mean Anomaly: 130.61°

Physical Characteristics

  • Diameter: 13.26600 km
  • Magnitude: 13.24
  • Albedo: 0.044

Derived Characteristics

  • Orbit Period: 1,360 days (3.72 years)
  • Avg. Orbit Speed: 19.17 km/s
  • Aphelion Distance: 2.86 AU
  • Perihelion Distance: 1.93 AU
  • Rotation Period: 260.44 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Yoshitomo 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.