325395 (2009 CQ5)

Mid-sized Aten-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Aten-class Asteroids » 325395 (2009 CQ5)

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 27,406,115 km of Earth in 2046
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

325395 (2009 CQ5) is a mid-sized asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2009 CQ5 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2009 CQ5 orbits the sun every 329 days (0.90 years), coming as close as 0.85 AU and reaching as far as 1.02 AU from the sun. Based on its brightness and the way it reflects light, 2009 CQ5 is probably between 0.864 to 1.932 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2009 CQ5'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.

2009 CQ5 has 12 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 15, 2046 27,406,115 10.507
June 18, 2047 26,989,954 12.205
Dec. 17, 2055 26,136,493 10.476
June 18, 2056 25,633,548 12.021
Dec. 15, 2064 26,971,699 10.497
June 18, 2065 26,786,493 12.169
July 12, 2118 29,547,819 10.059
July 11, 2127 26,295,049 9.886
Jan. 21, 2136 29,588,048 12.541
July 10, 2136 25,740,224 9.855
July 11, 2145 27,820,637 9.958
Dec. 17, 2199 27,642,330 10.517

Images and Observations

2009 CQ5's orbit is determined by observations dating back to Feb. 14, 2009. It was last officially observed on Sept. 13, 2021. The IAU Minor Planet Center records 508 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 2009 CQ5:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9327 AU
  • Eccentricity: 0.0915
  • Inclination: 18.68°
  • Longitude of Ascending Node: 278.66°
  • Argument of Periapsis: 118.22°
  • Mean Anomaly: 110.12°

Physical Characteristics

  • Diameter: ~1.116 km
  • Magnitude: 17.44

Derived Characteristics

  • Orbit Period: 329 days (0.90 years)
  • Avg. Orbit Speed: 30.84 km/s
  • Aphelion Distance: 1.02 AU
  • Perihelion Distance: 0.85 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 325395 (2009 CQ5) 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 2009 CQ5 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.