Key Facts

Overview

131697 (2001 XH255) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 2001 XH255 as potentially hazardous because its orbit does not bring it close to Earth.

2001 XH255 orbits the sun every 75,100 days (205.61 years), coming as close as 32.34 AU and reaching as far as 37.32 AU from the sun. Based on its brightness and the way it reflects light, 2001 XH255 is probably between 58.419 to 130.629 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Delaware.

No Close Approaches

2001 XH255's orbit is 31.30 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 XH255's orbit is determined by observations dating back to Dec. 11, 2001. It was last officially observed on March 22, 2020. The IAU Minor Planet Center records 71 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 XH255:

References

Search

   or view a random object

Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 34.83 AU
  • Eccentricity: 0.0716
  • Inclination: 2.86°
  • Longitude of Ascending Node: 323.12°
  • Argument of Periapsis: 219.39°
  • Mean Anomaly: 329.99°

Physical Characteristics

  • Diameter: ~75.419 km
  • Magnitude: 8.29

Derived Characteristics

  • Orbit Period: 75,100 days (205.61 years)
  • Avg. Orbit Speed: 5.05 km/s
  • Aphelion Distance: 37.32 AU
  • Perihelion Distance: 32.34 AU

Map Comparison

Click to load map

Orbit Simulation

Sky Map

The position of 131697 (2001 XH255) 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.