Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 2,016,351 km of Earth in 2021
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

231937 (2001 FO32) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2001 FO32 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2001 FO32 orbits the sun every 810 days (2.22 years), coming as close as 0.30 AU and reaching as far as 3.11 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2001 FO32 is probably between 0.767 to 1.714 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2001 FO32's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2001 FO32 has 5 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
March 21, 2021 2,016,351 34.413
March 22, 2052 2,831,658 33.530
March 23, 2103 3,142,002 34.441
March 25, 2134 7,123,726 32.795
March 20, 2185 11,476,678 35.858

Images and Observations

2001 FO32's orbit is determined by observations dating back to March 23, 2001. It was last officially observed on Dec. 9, 2014. The IAU Minor Planet Center records 176 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 2001 FO32:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.701 AU
  • Eccentricity: 0.8261
  • Inclination: 38.97°
  • Longitude of Ascending Node: 181.74°
  • Argument of Periapsis: 123.3°
  • Mean Anomaly: 210.33°

Physical Characteristics

  • Diameter: ~0.990 km
  • Magnitude: 17.7

Derived Characteristics

  • Orbit Period: 810 days (2.22 years)
  • Avg. Orbit Speed: 22.85 km/s
  • Aphelion Distance: 3.11 AU
  • Perihelion Distance: 0.30 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 231937 (2001 FO32) 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.

Size Rendering

The above comparison is an artistic rendering that uses available data on the diameter of 2001 FO32 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.