Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 765,470 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2020 KA is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2020 KA 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.

2020 KA orbits the sun every 394 days (1.08 years), coming as close as 0.87 AU and reaching as far as 1.23 AU from the sun. Based on its brightness and the way it reflects light, 2020 KA is probably between 0.006 to 0.025 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2020 KA's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2020 KA has 25 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 19, 2020 765,470 5.808
Nov. 6, 2021 5,725,103 4.847
June 27, 2034 17,899,510 4.253
Nov. 12, 2035 14,667,160 8.508
May 11, 2047 20,258,181 9.579
Sept. 9, 2048 21,277,007 4.632
Dec. 10, 2048 24,684,854 4.112
May 21, 2061 4,270,969 4.986
Nov. 7, 2062 3,573,415 6.057
June 6, 2074 12,951,135 3.797
Nov. 11, 2075 15,774,493 8.714
Aug. 19, 2087 22,493,996 4.999
Dec. 23, 2087 29,521,740 4.714
May 16, 2099 8,101,116 7.256
Nov. 5, 2100 8,581,349 4.279
May 14, 2112 12,915,503 8.166
Aug. 14, 2126 22,853,262 5.052
June 11, 2139 14,110,627 3.803
Nov. 11, 2140 12,862,284 8.132
May 25, 2152 8,045,866 4.345
Nov. 10, 2153 9,583,383 7.453
April 3, 2165 29,908,499 4.363
Aug. 2, 2165 22,167,662 4.967
May 14, 2177 16,216,858 8.791
May 20, 2190 1,266,633 6.011

Images and Observations

2020 KA's orbit is determined by observations dating back to May 16, 2020. It was last officially observed on May 17, 2020. The IAU Minor Planet Center records 36 observations used to determine its orbit.

Accessibility and Exploration

2020 KA can be reached with a journey of 354 days. This trajectory would require a delta-v of 5.744 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 303,405 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2020 KA.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2020 KA:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.052 AU
  • Eccentricity: 0.1699
  • Inclination: 3.94°
  • Longitude of Ascending Node: 61.94°
  • Argument of Periapsis: 261.66°
  • Mean Anomaly: 320.75°

Physical Characteristics

  • Diameter: ~0.015 km
  • Magnitude: 27.5

Derived Characteristics

  • Orbit Period: 394 days (1.08 years)
  • Avg. Orbit Speed: 29.05 km/s
  • Aphelion Distance: 1.23 AU
  • Perihelion Distance: 0.87 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2020 KA 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.