Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 26,481,969 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

516154 (2016 CL32) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2016 CL32 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2016 CL32 orbits the sun every 700 days (1.92 years), coming as close as 0.83 AU and reaching as far as 2.25 AU from the sun. Based on its brightness and the way it reflects light, 2016 CL32 is probably between 0.355 to 0.794 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.

The rotation of 2016 CL32 has been observed. It completes a rotation on its axis every 11.18 hours.

Close Approaches

2016 CL32's orbit is 0.02 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.

2016 CL32 has 8 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 3, 2019 26,481,969 14.782
Jan. 6, 2041 18,042,904 10.188
Sept. 5, 2042 24,104,705 13.603
Jan. 1, 2064 22,082,185 9.752
Sept. 3, 2065 26,371,306 14.668
Jan. 30, 2108 24,817,345 17.387
Jan. 26, 2131 13,507,722 15.289
Jan. 26, 2154 15,557,434 15.679

Images and Observations

2016 CL32's orbit is determined by observations dating back to April 28, 2003. It was last officially observed on April 28, 2022. The IAU Minor Planet Center records 288 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 2016 CL32:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.543 AU
  • Eccentricity: 0.4602
  • Inclination: 12.21°
  • Longitude of Ascending Node: 123.5°
  • Argument of Periapsis: 292.92°
  • Mean Anomaly: 8.69°

Physical Characteristics

  • Diameter: ~0.459 km
  • Magnitude: 19.37

Derived Characteristics

  • Orbit Period: 700 days (1.92 years)
  • Avg. Orbit Speed: 23.98 km/s
  • Aphelion Distance: 2.25 AU
  • Perihelion Distance: 0.83 AU
  • Rotation Period: 11.18 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 516154 (2016 CL32) 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 2016 CL32 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.