Key Facts

Overview

38597 (1999 XU200) is a large asteroid that shares Jupiter's orbit around the sun. NASA JPL has not classified 1999 XU200 as potentially hazardous because its orbit does not bring it close to Earth.

1999 XU200 orbits the sun every 4,410 days (12.07 years), coming as close as 4.62 AU and reaching as far as 5.90 AU from the sun. Based on its brightness and the way it reflects light, 1999 XU200 is probably between 9.431 to 21.088 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the city of Cleveland, Ohio.

No Close Approaches

1999 XU200's orbit is 3.65 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

1999 XU200's orbit is determined by observations dating back to Nov. 24, 1987. It was last officially observed on Feb. 27, 2023. The IAU Minor Planet Center records 858 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 1999 XU200:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 5.263 AU
  • Eccentricity: 0.1217
  • Inclination: 16.87°
  • Longitude of Ascending Node: 72.48°
  • Argument of Periapsis: 37.02°
  • Mean Anomaly: 335.28°

Physical Characteristics

  • Diameter: ~12.175 km
  • Magnitude: 12.25

Derived Characteristics

  • Orbit Period: 4,410 days (12.07 years)
  • Avg. Orbit Speed: 12.98 km/s
  • Aphelion Distance: 5.90 AU
  • Perihelion Distance: 4.62 AU

Map Comparison

Click to load map

Orbit Simulation

Sky Map

The position of 38597 (1999 XU200) 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.