Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 6,961,862 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2020 HO5 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2020 HO5 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 HO5 orbits the sun every 362 days (0.99 years), coming as close as 0.97 AU and reaching as far as 1.02 AU from the sun. Based on its brightness and the way it reflects light, 2020 HO5 is probably between 0.004 to 0.016 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2020 HO5's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2020 HO5 has 18 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 29, 2019 6,961,862 2.786
April 23, 2020 950,598 2.721
April 22, 2021 6,333,727 3.342
April 20, 2022 18,827,545 5.361
Nov. 21, 2078 26,851,994 6.813
Nov. 13, 2079 13,457,286 4.378
Nov. 1, 2080 3,308,953 2.893
Oct. 25, 2081 3,125,318 2.592
Oct. 6, 2082 9,173,304 2.498
April 15, 2083 8,722,207 2.464
April 18, 2084 1,916,986 2.568
April 20, 2085 6,595,150 2.407
Nov. 15, 2085 11,815,847 2.462
Oct. 22, 2086 5,905,313 2.428
Oct. 15, 2087 2,480,688 2.611
Oct. 10, 2088 2,850,313 2.785
Oct. 3, 2089 11,001,549 3.871
Sept. 30, 2090 23,178,447 5.958

Images and Observations

2020 HO5's orbit is determined by observations dating back to April 23, 2020. It was last officially observed on April 26, 2020. The IAU Minor Planet Center records 47 observations used to determine its orbit.

Accessibility and Exploration

2020 HO5 can be reached with a journey of 362 days. This trajectory would require a delta-v of 3.874 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 1,061,397 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2020 HO5.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2020 HO5:

References

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Orbital Elements

  • Epoch: 2459200.5 JD
  • Semi-major axis: 0.9945 AU
  • Eccentricity: 0.0222
  • Inclination: 4.71°
  • Longitude of Ascending Node: 212.28°
  • Argument of Periapsis: 125.3°
  • Mean Anomaly: 113.57°

Physical Characteristics

  • Diameter: ~0.010 km
  • Magnitude: 28.5

Derived Characteristics

  • Orbit Period: 362 days (0.99 years)
  • Avg. Orbit Speed: 29.89 km/s
  • Aphelion Distance: 1.02 AU
  • Perihelion Distance: 0.97 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2020 HO5 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.