Key Facts

Overview

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

Doungnga orbits the sun every 1,640 days (4.49 years), coming as close as 2.55 AU and reaching as far as 2.89 AU from the sun. Doungnga is about 8.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

No Close Approaches

Doungnga's orbit is 1.57 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

Doungnga's orbit is determined by observations dating back to Jan. 16, 1994. It was last officially observed on June 25, 2023. The IAU Minor Planet Center records 1,752 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 Doungnga:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.723 AU
  • Eccentricity: 0.0619
  • Inclination: 0.81°
  • Longitude of Ascending Node: 287.34°
  • Argument of Periapsis: 208.34°
  • Mean Anomaly: 220.43°

Physical Characteristics

  • Diameter: 7.95700 km
  • Magnitude: 14.65
  • Albedo: 0.053

Derived Characteristics

  • Orbit Period: 1,640 days (4.49 years)
  • Avg. Orbit Speed: 18.06 km/s
  • Aphelion Distance: 2.89 AU
  • Perihelion Distance: 2.55 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Doungnga 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.