Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.92 km diameter)
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation


65679 (1989 UQ) is a small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 1989 UQ as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1989 UQ orbits the sun every 320 days (0.88 years), coming as close as 0.67 AU and reaching as far as 1.16 AU from the sun. 1989 UQ is about 0.9 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, comparable in size to the Golden Gate Bridge.

The rotation of 1989 UQ has been observed. It completes a rotation on its axis every 7.75 hours.

1989 UQ's spectral type None (Tholen) / B (SMASSII) indicates that it is likely to contain hydrogen, nitrogen, ammonia, and iron.

No Close Approaches

1989 UQ's orbit is 0.01 AU from Earth's orbit at its closest point. This means that there is an 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

1989 UQ's orbit is determined by observations dating back to Nov. 20, 1954. It was last officially observed on Nov. 23, 2017. The IAU Minor Planet Center records 724 observations used to determine its orbit.

Accessibility and Exploration

1989 UQ can be reached with a journey of 434 days. This trajectory would require a delta-v of 8.643 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 99,891 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 1989 UQ.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 1989 UQ:



   or view a random object

Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 0.9148 AU
  • Eccentricity: 0.2646
  • Inclination: 1.3°
  • Longitude of Ascending Node: 178.1°
  • Argument of Periapsis: 14.99°
  • Mean Anomaly: 279.64°

Physical Characteristics

  • Diameter: 0.91800 km
  • Magnitude: 19.5
  • Albedo: 0.033
  • Spectral type (SMASS): B

Derived Characteristics

  • Orbit Period: 320 days (0.88 years)
  • Avg. Orbit Speed: 31.10 km/s
  • Aphelion Distance: 1.16 AU
  • Perihelion Distance: 0.67 AU
  • Rotation Period: 7.75 hours
  • Approx. Composition: hydrogen, nitrogen, ammonia, and iron.

Map Comparison

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Orbit Simulation

Sky Map

The position of 65679 (1989 UQ) 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of 1989 UQ to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.