Key Facts

Overview

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

Seilandfarm orbits the sun every 1,240 days (3.39 years), coming as close as 2.22 AU and reaching as far as 2.31 AU from the sun. Seilandfarm is about 7.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of Seilandfarm has been observed. It completes a rotation on its axis every 3.97 hours.

Seilandfarm's spectral type None (Tholen) / L (SMASSII) indicates that it is likely to contain magnesium silicate, iron silicate, and aluminum.

No Close Approaches

Seilandfarm's orbit is 1.24 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

Seilandfarm's orbit is determined by observations dating back to March 15, 1975. It was last officially observed on July 5, 2023. The IAU Minor Planet Center records 3,835 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 Seilandfarm:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.264 AU
  • Eccentricity: 0.0196
  • Inclination: 2.25°
  • Longitude of Ascending Node: 250.41°
  • Argument of Periapsis: 222.8°
  • Mean Anomaly: 139.32°

Physical Characteristics

  • Diameter: 7.38900 km
  • Magnitude: 13.33
  • Albedo: 0.224
  • Spectral type (SMASS): L

Derived Characteristics

  • Orbit Period: 1,240 days (3.39 years)
  • Avg. Orbit Speed: 19.86 km/s
  • Aphelion Distance: 2.31 AU
  • Perihelion Distance: 2.22 AU
  • Rotation Period: 3.97 hours
  • Approx. Composition: magnesium silicate, iron silicate, and aluminum.

Map Comparison

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Orbit Simulation

Sky Map

The position of Seilandfarm 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.