Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 1,467,118 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2020 AB2 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2020 AB2 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 AB2 orbits the sun every 263 days (0.72 years), coming as close as 0.54 AU and reaching as far as 1.07 AU from the sun. Based on its brightness and the way it reflects light, 2020 AB2 is probably between 0.007 to 0.031 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2020 AB2'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 AB2 has 8 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 12, 2020 1,467,118 7.957
Nov. 13, 2024 7,222,618 7.198
Jan. 15, 2033 12,931,755 10.858
Nov. 6, 2042 18,428,708 11.850
Nov. 6, 2055 12,252,310 10.364
Nov. 6, 2068 9,695,313 9.702
Nov. 6, 2081 12,002,443 10.276
Jan. 16, 2124 17,721,791 11.879

Images and Observations

2020 AB2's orbit is determined by observations dating back to Jan. 5, 2020. It was last officially observed on Jan. 12, 2020. The IAU Minor Planet Center records 27 observations used to determine its orbit.

Accessibility and Exploration

2020 AB2 can be reached with a journey of 362 days. This trajectory would require a delta-v of 11.576 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 188 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2020 AB2.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2020 AB2:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.8043 AU
  • Eccentricity: 0.3263
  • Inclination: 2.61°
  • Longitude of Ascending Node: 102.62°
  • Argument of Periapsis: 155.83°
  • Mean Anomaly: 268.78°

Physical Characteristics

  • Diameter: ~0.019 km
  • Magnitude: 27.0

Derived Characteristics

  • Orbit Period: 263 days (0.72 years)
  • Avg. Orbit Speed: 33.27 km/s
  • Aphelion Distance: 1.07 AU
  • Perihelion Distance: 0.54 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2020 AB2 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.