162781 (2000 XL44)

Small Amor-class Asteroid

Near-Earth
Space Reference » Amor-class Asteroids » 162781 (2000 XL44)

Key Facts

Overview

162781 (2000 XL44) is a small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2000 XL44 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

2000 XL44 orbits the sun every 1,210 days (3.31 years), coming as close as 1.28 AU and reaching as far as 3.18 AU from the sun. Based on its brightness and the way it reflects light, 2000 XL44 is probably between 0.662 to 1.479 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

The rotation of 2000 XL44 has been observed. It completes a rotation on its axis every 3.00 hours.

2000 XL44's spectral type None (Tholen) / S (SMASSII) indicates that it is likely to contain and .

No Close Approaches

2000 XL44's orbit is 0.29 AU from Earth's orbit at its closest point. This means that there is a 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

2000 XL44's orbit is determined by observations dating back to Jan. 19, 1991. It was last officially observed on May 15, 2021. The IAU Minor Planet Center records 526 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 2000 XL44:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.227 AU
  • Eccentricity: 0.426
  • Inclination: 10.03°
  • Longitude of Ascending Node: 332.01°
  • Argument of Periapsis: 163.81°
  • Mean Anomaly: 292.03°

Physical Characteristics

  • Diameter: ~0.854 km
  • Magnitude: 18.02
  • Spectral type (SMASS): S

Derived Characteristics

  • Orbit Period: 1,210 days (3.31 years)
  • Avg. Orbit Speed: 20.02 km/s
  • Aphelion Distance: 3.18 AU
  • Perihelion Distance: 1.28 AU
  • Rotation Period: 3.00 hours
  • Approx. Composition: and .

Map Comparison

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Orbit Simulation

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Sky Map

The position of 162781 (2000 XL44) 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 2000 XL44 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.