Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 6,661,572 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2012 XA133 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2012 XA133 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2012 XA133 orbits the sun every 559 days (1.53 years), coming as close as 0.40 AU and reaching as far as 2.25 AU from the sun. Based on its brightness and the way it reflects light, 2012 XA133 is probably between 0.176 to 0.393 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

Close Approaches

2012 XA133's orbit is 0.02 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.

2012 XA133 has 15 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
March 27, 2020 6,661,572 23.666
Nov. 17, 2038 21,068,687 19.434
April 2, 2046 20,412,839 19.777
Nov. 22, 2064 3,748,319 24.094
March 25, 2069 12,219,871 25.672
Nov. 19, 2087 15,848,873 20.458
April 4, 2095 25,909,347 18.652
Nov. 28, 2113 17,475,682 27.084
March 30, 2118 7,414,845 22.789
Nov. 24, 2136 4,746,650 24.325
March 27, 2141 8,640,847 24.800
Nov. 26, 2159 5,983,087 24.607
March 28, 2164 6,474,010 24.003
Nov. 26, 2182 7,917,039 25.048
March 30, 2187 6,286,242 23.954

Images and Observations

2012 XA133's orbit is determined by observations dating back to Dec. 11, 2012. It was last officially observed on Feb. 20, 2020. The IAU Minor Planet Center records 66 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 2012 XA133:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.328 AU
  • Eccentricity: 0.6978
  • Inclination: 4.06°
  • Longitude of Ascending Node: 225.61°
  • Argument of Periapsis: 77.95°
  • Mean Anomaly: 10.2°

Physical Characteristics

  • Diameter: ~0.227 km
  • Magnitude: 20.9

Derived Characteristics

  • Orbit Period: 559 days (1.53 years)
  • Avg. Orbit Speed: 25.85 km/s
  • Aphelion Distance: 2.25 AU
  • Perihelion Distance: 0.40 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 2012 XA133 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.