2001 YB5

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
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Key Facts

Overview

2001 YB5 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2001 YB5 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2001 YB5 orbits the sun every 1,310 days (3.59 years), coming as close as 0.32 AU and reaching as far as 4.36 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2001 YB5 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.

The rotation of 2001 YB5 has been observed. It completes a rotation on its axis every 2.50 hours.

No Close Approaches

2001 YB5'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.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

2001 YB5's orbit is determined by observations dating back to Dec. 26, 2001. It was last officially observed on Jan. 6, 2002. The IAU Minor Planet Center records 399 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 YB5:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.339 AU
  • Eccentricity: 0.8646
  • Inclination: 5.55°
  • Longitude of Ascending Node: 108.37°
  • Argument of Periapsis: 115.29°
  • Mean Anomaly: 5.83°

Physical Characteristics

  • Diameter: ~0.227 km
  • Magnitude: 20.9

Derived Characteristics

  • Orbit Period: 1,310 days (3.59 years)
  • Avg. Orbit Speed: 19.42 km/s
  • Aphelion Distance: 4.36 AU
  • Perihelion Distance: 0.32 AU
  • Rotation Period: 2.50 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2001 YB5 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 2001 YB5 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.