Key Facts

Overview

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

Donati orbits the sun every 1,230 days (3.37 years), coming as close as 2.13 AU and reaching as far as 2.36 AU from the sun. Donati is about 2.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to Mount Everest.

The rotation of Donati has been observed. It completes a rotation on its axis every 4.67 hours.

No Close Approaches

Donati's orbit is 1.15 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

Donati's orbit is determined by observations dating back to March 5, 1984. It was last officially observed on Nov. 21, 2022. The IAU Minor Planet Center records 2,024 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 Donati:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.243 AU
  • Eccentricity: 0.0503
  • Inclination: 2.29°
  • Longitude of Ascending Node: 193.36°
  • Argument of Periapsis: 259.44°
  • Mean Anomaly: 353.64°

Physical Characteristics

  • Diameter: 2.18800 km
  • Magnitude: 15.22
  • Albedo: 0.307

Derived Characteristics

  • Orbit Period: 1,230 days (3.37 years)
  • Avg. Orbit Speed: 19.84 km/s
  • Aphelion Distance: 2.36 AU
  • Perihelion Distance: 2.13 AU
  • Rotation Period: 4.67 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Donati 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of Donati to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.