Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Pentagon (1.22 km diameter)
  • Will pass within 22,235,337 km of Earth in 2028
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

138883 (2000 YL29) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2000 YL29 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.

2000 YL29 orbits the sun every 695 days (1.90 years), coming as close as 1.01 AU and reaching as far as 2.06 AU from the sun. 2000 YL29 is about 1.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. Pentagon.

The rotation of 2000 YL29 has been observed. It completes a rotation on its axis every 10.59 hours.

Close Approaches

2000 YL29's orbit is 0.14 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2000 YL29 has 4 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 15, 2028 22,235,337 14.404
Sept. 13, 2068 21,714,390 12.966
Sept. 18, 2127 24,310,174 15.018
Sept. 16, 2167 20,381,254 13.474

Images and Observations

2000 YL29's orbit is determined by observations dating back to March 5, 1984. It was last officially observed on April 29, 2022. The IAU Minor Planet Center records 1,024 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 2000 YL29:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.536 AU
  • Eccentricity: 0.344
  • Inclination: 21.89°
  • Longitude of Ascending Node: 182.75°
  • Argument of Periapsis: 115.88°
  • Mean Anomaly: 157.65°

Physical Characteristics

  • Diameter: 1.22200 km
  • Magnitude: 16.86
  • Albedo: 0.247

Derived Characteristics

  • Orbit Period: 695 days (1.90 years)
  • Avg. Orbit Speed: 24.04 km/s
  • Aphelion Distance: 2.06 AU
  • Perihelion Distance: 1.01 AU
  • Rotation Period: 10.59 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 138883 (2000 YL29) 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 2000 YL29 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.