Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 13,329,089 km of Earth in 2060
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

509935 (2009 QL8) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2009 QL8 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2009 QL8 orbits the sun every 980 days (2.68 years), coming as close as 0.89 AU and reaching as far as 2.98 AU from the sun. Based on its brightness and the way it reflects light, 2009 QL8 is probably between 0.329 to 0.735 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 2009 QL8 has been observed. It completes a rotation on its axis every 9.09 hours.

Close Approaches

2009 QL8's orbit is 0.03 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 QL8 has 8 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 4, 2060 13,329,089 12.565
Nov. 27, 2068 15,306,721 9.377
Jan. 16, 2077 11,733,365 13.134
Sept. 29, 2111 23,985,060 15.199
Nov. 18, 2119 15,575,844 9.426
Jan. 17, 2128 11,151,090 12.949
Oct. 15, 2162 9,939,722 10.827
Jan. 1, 2171 7,541,371 9.846

Images and Observations

2009 QL8's orbit is determined by observations dating back to Aug. 20, 2009. It was last officially observed on June 3, 2019. The IAU Minor Planet Center records 271 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 QL8:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.931 AU
  • Eccentricity: 0.5409
  • Inclination: 4.24°
  • Longitude of Ascending Node: 84.48°
  • Argument of Periapsis: 339.63°
  • Mean Anomaly: 55.83°

Physical Characteristics

  • Diameter: ~0.424 km
  • Magnitude: 19.54

Derived Characteristics

  • Orbit Period: 980 days (2.68 years)
  • Avg. Orbit Speed: 21.44 km/s
  • Aphelion Distance: 2.98 AU
  • Perihelion Distance: 0.89 AU
  • Rotation Period: 9.09 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 509935 (2009 QL8) 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 2009 QL8 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.