458436 (2011 AL52)

Mid-sized Amor-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Amor-class Asteroids » 458436 (2011 AL52)

Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to the Golden Gate Bridge (1.10 km diameter)
  • Will pass within 20,703,533 km of Earth in 2029
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

458436 (2011 AL52) is a mid-sized asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2011 AL52 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2011 AL52 orbits the sun every 1,710 days (4.68 years), coming as close as 1.02 AU and reaching as far as 4.59 AU from the sun. 2011 AL52 is about 1.1 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the Golden Gate Bridge.

Close Approaches

2011 AL52's orbit is 0.04 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 AL52 has 2 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 3, 2029 20,703,533 11.681
Jan. 10, 2192 19,848,256 12.896

Images and Observations

2011 AL52's orbit is determined by observations dating back to Jan. 14, 2011. It was last officially observed on April 22, 2016. The IAU Minor Planet Center records 148 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 AL52:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.803 AU
  • Eccentricity: 0.6361
  • Inclination: 13.44°
  • Longitude of Ascending Node: 272.69°
  • Argument of Periapsis: 171.73°
  • Mean Anomaly: 241.38°

Physical Characteristics

  • Diameter: 1.10200 km
  • Magnitude: 17.45
  • Albedo: 0.159

Derived Characteristics

  • Orbit Period: 1,710 days (4.68 years)
  • Avg. Orbit Speed: 17.83 km/s
  • Aphelion Distance: 4.59 AU
  • Perihelion Distance: 1.02 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 458436 (2011 AL52) 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 2011 AL52 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.