Key Facts

Overview

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

Gregbollendonk orbits the sun every 1,980 days (5.42 years), coming as close as 2.71 AU and reaching as far as 3.46 AU from the sun. Gregbollendonk is about 7.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

No Close Approaches

Gregbollendonk's orbit is 1.73 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

Gregbollendonk's orbit is determined by observations dating back to Nov. 5, 1978. It was last officially observed on May 4, 2023. The IAU Minor Planet Center records 1,801 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 Gregbollendonk:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.087 AU
  • Eccentricity: 0.1212
  • Inclination: 1.27°
  • Longitude of Ascending Node: 182.51°
  • Argument of Periapsis: 290.36°
  • Mean Anomaly: 59.68°

Physical Characteristics

  • Diameter: 7.43900 km
  • Magnitude: 14.35
  • Albedo: 0.080

Derived Characteristics

  • Orbit Period: 1,980 days (5.42 years)
  • Avg. Orbit Speed: 16.96 km/s
  • Aphelion Distance: 3.46 AU
  • Perihelion Distance: 2.71 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Gregbollendonk 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.