Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 20,450,070 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2013 AA32 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2013 AA32 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.

2013 AA32 orbits the sun every 1,245 days (3.41 years), coming as close as 0.60 AU and reaching as far as 3.93 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2013 AA32 is probably between 0.367 to 0.820 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2013 AA32's orbit is 0.10 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.

2013 AA32 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 11, 2019 20,450,070 24.120
July 12, 2036 17,028,857 23.163
July 22, 2053 18,316,480 19.355
Dec. 30, 2063 25,131,346 17.401
Aug. 2, 2070 29,833,999 16.462
Jan. 13, 2081 20,370,032 24.376

Images and Observations

2013 AA32's orbit is determined by observations dating back to Jan. 6, 2013. It was last officially observed on July 6, 2019. The IAU Minor Planet Center records 89 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 2013 AA32:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 2.26464889122 AU
  • Eccentricity: 0.735115656312
  • Inclination: 6.13321412707°
  • Longitude of Ascending Node: 0.492825004581°
  • Argument of Periapsis: 21.0340595481°
  • Mean Anomaly: 324.736274099°

Physical Characteristics

  • Diameter: ~0.474 km
  • Magnitude: 19.3

Derived Characteristics

  • Orbit Period: 1,245 days (3.41 years)
  • Avg. Orbit Speed: 19.79 km/s
  • Aphelion Distance: 3.93 AU
  • Perihelion Distance: 0.60 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2013 AA32 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.