Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 21,068,798 km of Earth in 2069
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2006 KD40 is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2006 KD40 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2006 KD40 orbits the sun every 1,050 days (2.87 years), coming as close as 0.98 AU and reaching as far as 3.05 AU from the sun. Based on its brightness and the way it reflects light, 2006 KD40 is probably between 0.509 to 1.138 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2006 KD40'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.

2006 KD40 has 4 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 2, 2069 21,068,798 13.166
June 10, 2092 21,986,140 17.335
July 10, 2155 29,598,017 12.822
June 14, 2178 17,206,605 16.663

Images and Observations

2006 KD40's orbit is determined by observations dating back to March 22, 2003. It was last officially observed on Aug. 6, 2023. The IAU Minor Planet Center records 165 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 2006 KD40:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.017 AU
  • Eccentricity: 0.5124
  • Inclination: 21.1°
  • Longitude of Ascending Node: 86.69°
  • Argument of Periapsis: 217.95°
  • Mean Anomaly: 356.05°

Physical Characteristics

  • Diameter: ~0.657 km
  • Magnitude: 18.59

Derived Characteristics

  • Orbit Period: 1,050 days (2.87 years)
  • Avg. Orbit Speed: 20.90 km/s
  • Aphelion Distance: 3.05 AU
  • Perihelion Distance: 0.98 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2006 KD40 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 2006 KD40 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.