Key Facts

  • Categorized as a Jupiter Trojan
  • Comparable in size to the city of Indianapolis (22.47 km diameter)
  • Not a Near Earth Object
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

16428 (1988 RD12) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 1988 RD12 as potentially hazardous because its orbit does not bring it close to Earth.

1988 RD12 orbits the sun every 4,350 days (11.91 years), coming as close as 4.85 AU and reaching as far as 5.58 AU from the sun. 1988 RD12 is about 22.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of 1988 RD12 has been observed. It completes a rotation on its axis every 20.31 hours.

No Close Approaches

1988 RD12's orbit is 3.83 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

1988 RD12's orbit is determined by observations dating back to March 24, 1971. It was last officially observed on June 28, 2023. The IAU Minor Planet Center records 1,591 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 1988 RD12:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.212 AU
  • Eccentricity: 0.0704
  • Inclination: 3.98°
  • Longitude of Ascending Node: 340.0°
  • Argument of Periapsis: 345.75°
  • Mean Anomaly: 354.07°

Physical Characteristics

  • Diameter: 22.46800 km
  • Magnitude: 11.77
  • Albedo: 0.055

Derived Characteristics

  • Orbit Period: 4,350 days (11.91 years)
  • Avg. Orbit Speed: 13.03 km/s
  • Aphelion Distance: 5.58 AU
  • Perihelion Distance: 4.85 AU
  • Rotation Period: 20.31 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 16428 (1988 RD12) 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.