Key Facts

Overview

77914 (2001 UE188) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 2001 UE188 as potentially hazardous because its orbit does not bring it close to Earth.

2001 UE188 orbits the sun every 4,460 days (12.21 years), coming as close as 5.16 AU and reaching as far as 5.44 AU from the sun. Based on its brightness and the way it reflects light, 2001 UE188 is probably between 11.029 to 24.663 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the city of Cleveland, Ohio.

No Close Approaches

2001 UE188's orbit is 4.18 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

2001 UE188's orbit is determined by observations dating back to Feb. 9, 1991. It was last officially observed on Sept. 20, 2022. The IAU Minor Planet Center records 1,191 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 2001 UE188:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.302 AU
  • Eccentricity: 0.0263
  • Inclination: 19.77°
  • Longitude of Ascending Node: 78.01°
  • Argument of Periapsis: 237.68°
  • Mean Anomaly: 22.8°

Physical Characteristics

  • Diameter: ~14.239 km
  • Magnitude: 11.91

Derived Characteristics

  • Orbit Period: 4,460 days (12.21 years)
  • Avg. Orbit Speed: 12.93 km/s
  • Aphelion Distance: 5.44 AU
  • Perihelion Distance: 5.16 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 77914 (2001 UE188) 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.