Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 2,571,760 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2020 AB is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2020 AB 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 AB orbits the sun every 793 days (2.17 years), coming as close as 0.99 AU and reaching as far as 2.37 AU from the sun. Based on its brightness and the way it reflects light, 2020 AB is probably between 0.017 to 0.038 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2020 AB's orbit is 0.02 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.

2020 AB has 8 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 29, 2019 2,571,760 6.394
Jan. 19, 2033 19,726,006 10.074
Nov. 24, 2082 10,093,918 6.692
Dec. 10, 2095 6,017,876 6.014
Nov. 15, 2108 15,453,210 8.078
Jan. 22, 2150 20,813,898 10.290
Dec. 31, 2162 2,413,414 6.356
Jan. 11, 2176 7,746,333 7.510

Images and Observations

2020 AB's orbit is determined by observations dating back to Dec. 30, 2019. It was last officially observed on Jan. 19, 2020. The IAU Minor Planet Center records 87 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 2020 AB:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.676 AU
  • Eccentricity: 0.4111
  • Inclination: 4.85°
  • Longitude of Ascending Node: 284.0°
  • Argument of Periapsis: 157.46°
  • Mean Anomaly: 260.63°

Physical Characteristics

  • Diameter: ~0.022 km
  • Magnitude: 26.0

Derived Characteristics

  • Orbit Period: 793 days (2.17 years)
  • Avg. Orbit Speed: 22.99 km/s
  • Aphelion Distance: 2.37 AU
  • Perihelion Distance: 0.99 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2020 AB 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.