Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to Mount Everest (2.60 km diameter)
  • Will pass within 8,031,333 km of Earth in 2035
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

Anza is a small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified Anza 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.

Anza orbits the sun every 1,245 days (3.41 years), coming as close as 1.05 AU and reaching as far as 3.48 AU from the sun. Anza is about 2.6 kilometers in diameter, making it larger than most asteroids, comparable in size to Mount Everest.

The rotation of Anza has been observed. It completes a rotation on its axis every 11.50 days.

Close Approaches

Anza's orbit is 0.06 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.

Anza has 5 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 27, 2035 8,031,333 6.660
Aug. 27, 2093 26,837,556 10.561
Oct. 11, 2110 10,135,643 7.279
Sept. 12, 2151 13,930,644 7.728
Oct. 27, 2168 26,187,861 10.746

Images and Observations

Anza's orbit is determined by observations dating back to Oct. 22, 1960. It was last officially observed on Feb. 9, 2019. The IAU Minor Planet Center records 915 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 Anza:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 2.26486588085 AU
  • Eccentricity: 0.535483154217
  • Inclination: 3.79825905153°
  • Longitude of Ascending Node: 207.391013181°
  • Argument of Periapsis: 157.034334318°
  • Mean Anomaly: 64.8410595236°

Physical Characteristics

  • Diameter: 2.60000 km
  • Magnitude: 16.4
  • Spectral type (Tholen): TCG:

Derived Characteristics

  • Orbit Period: 1,245 days (3.41 years)
  • Avg. Orbit Speed: 19.79 km/s
  • Aphelion Distance: 3.48 AU
  • Perihelion Distance: 1.05 AU
  • Rotation Period: 11.50 days

Size Comparison

Orbit Simulation

Sky Map

The position of Anza 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.