Key Facts

Overview

9209 (1994 UK1) is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified 1994 UK1 as potentially hazardous because its orbit does not bring it close to Earth.

1994 UK1 orbits the sun every 1,660 days (4.54 years), coming as close as 1.96 AU and reaching as far as 3.54 AU from the sun. 1994 UK1 is about 10.7 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Boston.

No Close Approaches

1994 UK1's orbit is 0.95 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

1994 UK1's orbit is determined by observations dating back to Oct. 22, 1985. It was last officially observed on Feb. 10, 2023. The IAU Minor Planet Center records 2,937 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 1994 UK1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.748 AU
  • Eccentricity: 0.288
  • Inclination: 5.51°
  • Longitude of Ascending Node: 8.38°
  • Argument of Periapsis: 295.9°
  • Mean Anomaly: 182.09°

Physical Characteristics

  • Diameter: 10.74700 km
  • Magnitude: 13.45
  • Albedo: 0.096

Derived Characteristics

  • Orbit Period: 1,660 days (4.54 years)
  • Avg. Orbit Speed: 18.01 km/s
  • Aphelion Distance: 3.54 AU
  • Perihelion Distance: 1.96 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 9209 (1994 UK1) 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.