523623 (2008 CB22)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 523623 (2008 CB22)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 26,141,626 km of Earth in 2048
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

523623 (2008 CB22) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2008 CB22 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2008 CB22 orbits the sun every 1,330 days (3.64 years), coming as close as 0.82 AU and reaching as far as 3.91 AU from the sun. Based on its brightness and the way it reflects light, 2008 CB22 is probably between 0.302 to 0.676 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2008 CB22's orbit is 0.05 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.

2008 CB22 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 8, 2048 26,141,626 12.321
Jan. 4, 2088 25,853,853 12.212
Feb. 7, 2117 17,450,174 13.714
Nov. 29, 2127 23,367,004 12.300
Dec. 12, 2156 26,695,099 12.601
Oct. 12, 2167 29,386,822 20.200
Nov. 17, 2196 19,740,249 12.245

Images and Observations

2008 CB22's orbit is determined by observations dating back to Feb. 8, 2008. It was last officially observed on April 24, 2019. The IAU Minor Planet Center records 163 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 2008 CB22:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.365 AU
  • Eccentricity: 0.6531
  • Inclination: 7.27°
  • Longitude of Ascending Node: 51.18°
  • Argument of Periapsis: 33.4°
  • Mean Anomaly: 119.31°

Physical Characteristics

  • Diameter: ~0.390 km
  • Magnitude: 19.72

Derived Characteristics

  • Orbit Period: 1,330 days (3.64 years)
  • Avg. Orbit Speed: 19.35 km/s
  • Aphelion Distance: 3.91 AU
  • Perihelion Distance: 0.82 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 523623 (2008 CB22) 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 2008 CB22 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.