482250 (2011 LL2)

Very small Amor-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Amor-class Asteroids » 482250 (2011 LL2)

Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to a football field
  • Will pass within 2,864,229 km of Earth in 2040
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

482250 (2011 LL2) is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2011 LL2 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2011 LL2 orbits the sun every 441 days (1.21 years), coming as close as 1.02 AU and reaching as far as 1.24 AU from the sun. Based on its brightness and the way it reflects light, 2011 LL2 is probably between 0.246 to 0.550 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to a football field.

The rotation of 2011 LL2 has been observed. It completes a rotation on its axis every 0.10 hours.

Close Approaches

2011 LL2's orbit is 0.01 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.

2011 LL2 has 12 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 28, 2040 2,864,229 12.913
June 5, 2046 23,825,733 13.848
May 22, 2075 29,030,510 13.861
May 28, 2081 3,726,948 12.910
June 3, 2087 14,927,824 13.319
May 24, 2128 25,964,672 13.676
May 29, 2134 6,774,279 12.933
June 1, 2140 7,841,408 13.042
June 7, 2146 26,375,049 14.017
May 26, 2187 18,854,561 13.292
May 30, 2193 2,441,830 12.922
June 3, 2199 10,121,770 13.112

Images and Observations

2011 LL2's orbit is determined by observations dating back to June 5, 2011. It was last officially observed on Jan. 9, 2023. The IAU Minor Planet Center records 309 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 2011 LL2:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.134 AU
  • Eccentricity: 0.0964
  • Inclination: 24.68°
  • Longitude of Ascending Node: 68.24°
  • Argument of Periapsis: 163.57°
  • Mean Anomaly: 72.38°

Physical Characteristics

  • Diameter: ~0.317 km
  • Magnitude: 20.17

Derived Characteristics

  • Orbit Period: 441 days (1.21 years)
  • Avg. Orbit Speed: 27.97 km/s
  • Aphelion Distance: 1.24 AU
  • Perihelion Distance: 1.02 AU
  • Rotation Period: 0.10 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 482250 (2011 LL2) 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 below comparison is an artistic rendering that uses available data on the diameter of 2011 LL2 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.