Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 25,239,284 km of Earth in 2025
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2005 OX is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 OX as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 OX orbits the sun every 561 days (1.54 years), coming as close as 0.51 AU and reaching as far as 2.15 AU from the sun. Based on its brightness and the way it reflects light, 2005 OX is probably between 0.202 to 0.451 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

Close Approaches

2005 OX'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.

2005 OX has 13 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 1, 2025 25,239,284 24.487
Aug. 16, 2048 21,237,730 15.559
March 4, 2078 18,486,606 16.416
Aug. 4, 2085 18,411,461 23.157
March 12, 2098 11,642,245 21.067
Aug. 13, 2105 6,774,218 18.361
Aug. 2, 2122 29,284,618 25.316
March 13, 2135 10,339,418 20.546
Aug. 13, 2142 6,991,102 18.324
March 13, 2172 10,691,944 20.627
Aug. 15, 2179 10,764,466 17.558
March 1, 2189 27,579,540 14.521
Aug. 5, 2196 19,170,579 23.320

Images and Observations

2005 OX's orbit is determined by observations dating back to July 25, 2005. It was last officially observed on April 16, 2018. The IAU Minor Planet Center records 64 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 2005 OX:

References

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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 1.331 AU
  • Eccentricity: 0.6175
  • Inclination: 7.62°
  • Longitude of Ascending Node: 323.63°
  • Argument of Periapsis: 100.44°
  • Mean Anomaly: 89.16°

Physical Characteristics

  • Diameter: ~0.260 km
  • Magnitude: 20.6

Derived Characteristics

  • Orbit Period: 561 days (1.54 years)
  • Avg. Orbit Speed: 25.81 km/s
  • Aphelion Distance: 2.15 AU
  • Perihelion Distance: 0.51 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2005 OX 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 below comparison is an artistic rendering that uses available data on the diameter of 2005 OX to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.