Key Facts

Overview

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

Waterfield orbits the sun every 1,960 days (5.37 years), coming as close as 2.72 AU and reaching as far as 3.40 AU from the sun. Waterfield is about 28.1 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Waterfield has been observed. It completes a rotation on its axis every 4.86 hours.

No Close Approaches

Waterfield's orbit is 1.72 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

Waterfield's orbit is determined by observations dating back to July 24, 1933. It was last officially observed on July 5, 2023. The IAU Minor Planet Center records 4,425 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 Waterfield:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.061 AU
  • Eccentricity: 0.1103
  • Inclination: 1.03°
  • Longitude of Ascending Node: 265.32°
  • Argument of Periapsis: 106.77°
  • Mean Anomaly: 260.1°

Physical Characteristics

  • Diameter: 28.14600 km
  • Magnitude: 11.1
  • Albedo: 0.067
  • Spectral type (Tholen): XDC

Derived Characteristics

  • Orbit Period: 1,960 days (5.37 years)
  • Avg. Orbit Speed: 16.99 km/s
  • Aphelion Distance: 3.40 AU
  • Perihelion Distance: 2.72 AU
  • Rotation Period: 4.86 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Waterfield 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.