Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 25,273,300 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2012 KF47 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2012 KF47 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

2012 KF47 orbits the sun every 417 days (1.14 years), coming as close as 0.72 AU and reaching as far as 1.46 AU from the sun. Based on its brightness and the way it reflects light, 2012 KF47 is probably between 0.168 to 0.375 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

Close Approaches

2012 KF47's orbit is 0.14 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

2012 KF47 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 30, 2020 25,273,300 12.005
June 27, 2084 26,530,149 12.904
July 1, 2092 24,815,471 11.861
July 5, 2100 24,517,303 11.334
July 5, 2108 24,508,513 11.345
July 2, 2116 24,925,361 11.971
June 26, 2124 27,648,639 13.354

Images and Observations

2012 KF47's orbit is determined by observations dating back to April 25, 2004. It was last officially observed on March 6, 2014. The IAU Minor Planet Center records 106 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 2012 KF47:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.092 AU
  • Eccentricity: 0.3379
  • Inclination: 11.89°
  • Longitude of Ascending Node: 148.36°
  • Argument of Periapsis: 218.56°
  • Mean Anomaly: 284.29°

Physical Characteristics

  • Diameter: ~0.217 km
  • Magnitude: 21.0

Derived Characteristics

  • Orbit Period: 417 days (1.14 years)
  • Avg. Orbit Speed: 28.49 km/s
  • Aphelion Distance: 1.46 AU
  • Perihelion Distance: 0.72 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2012 KF47 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 2012 KF47 to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.