Key Facts

Overview

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

Omsk orbits the sun every 1,710 days (4.68 years), coming as close as 2.43 AU and reaching as far as 3.17 AU from the sun. Omsk is about 16.1 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Philadelphia.

The rotation of Omsk has been observed. It completes a rotation on its axis every 7.28 hours.

Omsk's spectral type None (Tholen) / X (SMASSII) indicates that it is likely to contain iron, nickel, and cobalt.

No Close Approaches

Omsk's orbit is 1.43 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

Omsk's orbit is determined by observations dating back to Feb. 21, 1969. It was last officially observed on Feb. 3, 2023. The IAU Minor Planet Center records 3,744 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 Omsk:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.801 AU
  • Eccentricity: 0.1313
  • Inclination: 8.37°
  • Longitude of Ascending Node: 269.42°
  • Argument of Periapsis: 312.29°
  • Mean Anomaly: 183.85°

Physical Characteristics

  • Diameter: 16.05800 km
  • Magnitude: 11.97
  • Albedo: 0.224
  • Spectral type (SMASS): X

Derived Characteristics

  • Orbit Period: 1,710 days (4.68 years)
  • Avg. Orbit Speed: 17.82 km/s
  • Aphelion Distance: 3.17 AU
  • Perihelion Distance: 2.43 AU
  • Rotation Period: 7.28 hours
  • Approx. Composition: iron, nickel, and cobalt.

Map Comparison

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Orbit Simulation

Sky Map

The position of Omsk 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.