2013 YP139

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 2013 YP139

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.40 km diameter)
  • Will pass within 1,183,591 km of Earth in 2069
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2013 YP139 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2013 YP139 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2013 YP139 orbits the sun every 1,360 days (3.72 years), coming as close as 0.76 AU and reaching as far as 4.04 AU from the sun. 2013 YP139 is about 0.4 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, comparable in size to the U.S. Capitol building.

Close Approaches

2013 YP139'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.

2013 YP139 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 12, 2069 1,183,591 16.782
Dec. 17, 2084 10,474,994 18.893
Dec. 16, 2099 5,023,426 17.903
July 24, 2118 26,075,281 21.601
Dec. 3, 2133 9,515,780 14.139
July 31, 2152 8,426,757 18.262
July 28, 2167 16,637,545 20.042

Images and Observations

2013 YP139's orbit is determined by observations dating back to June 29, 2002. It was last officially observed on Jan. 28, 2014. The IAU Minor Planet Center records 44 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 2013 YP139:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.401 AU
  • Eccentricity: 0.683
  • Inclination: 0.82°
  • Longitude of Ascending Node: 291.94°
  • Argument of Periapsis: 83.76°
  • Mean Anomaly: 231.61°

Physical Characteristics

  • Diameter: 0.40200 km
  • Magnitude: 21.17
  • Albedo: 0.025

Derived Characteristics

  • Orbit Period: 1,360 days (3.72 years)
  • Avg. Orbit Speed: 19.21 km/s
  • Aphelion Distance: 4.04 AU
  • Perihelion Distance: 0.76 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2013 YP139 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 2013 YP139 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.