Key Facts

Overview

5534 (1941 UN) is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1941 UN as potentially hazardous because its orbit does not bring it close to Earth.

1941 UN orbits the sun every 1,670 days (4.57 years), coming as close as 1.82 AU and reaching as far as 3.69 AU from the sun. 1941 UN is about 8.5 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of 1941 UN has been observed. It completes a rotation on its axis every 14.40 hours.

1941 UN's spectral type None (Tholen) / S (SMASSII) indicates that it is likely to contain and .

No Close Approaches

1941 UN's orbit is 0.85 AU from Earth's orbit at its closest point. This means that there is a very 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

1941 UN's orbit is determined by observations dating back to Sept. 20, 1941. It was last officially observed on June 30, 2023. The IAU Minor Planet Center records 2,896 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 1941 UN:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.756 AU
  • Eccentricity: 0.3382
  • Inclination: 7.49°
  • Longitude of Ascending Node: 9.21°
  • Argument of Periapsis: 50.5°
  • Mean Anomaly: 284.48°

Physical Characteristics

  • Diameter: 8.50100 km
  • Magnitude: 12.76
  • Albedo: 0.269
  • Spectral type (SMASS): S

Derived Characteristics

  • Orbit Period: 1,670 days (4.57 years)
  • Avg. Orbit Speed: 17.95 km/s
  • Aphelion Distance: 3.69 AU
  • Perihelion Distance: 1.82 AU
  • Rotation Period: 14.40 hours
  • Approx. Composition: and .

Map Comparison

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Orbit Simulation

Sky Map

The position of 5534 (1941 UN) 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.