Key Facts

Overview

516386 (2018 DX) is a mid-sized asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 2018 DX as potentially hazardous because its orbit does not bring it close to Earth.

2018 DX orbits the sun every 4,230 days (11.58 years), coming as close as 4.84 AU and reaching as far as 5.40 AU from the sun. Based on its brightness and the way it reflects light, 2018 DX is probably between 5.869 to 13.123 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.

No Close Approaches

2018 DX's orbit is 3.86 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

2018 DX's orbit is determined by observations dating back to Dec. 14, 2004. It was last officially observed on June 27, 2023. The IAU Minor Planet Center records 144 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 2018 DX:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.119 AU
  • Eccentricity: 0.054
  • Inclination: 21.08°
  • Longitude of Ascending Node: 308.29°
  • Argument of Periapsis: 44.27°
  • Mean Anomaly: 331.81°

Physical Characteristics

  • Diameter: ~7.577 km
  • Magnitude: 13.28

Derived Characteristics

  • Orbit Period: 4,230 days (11.58 years)
  • Avg. Orbit Speed: 13.17 km/s
  • Aphelion Distance: 5.40 AU
  • Perihelion Distance: 4.84 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 516386 (2018 DX) 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.