Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to Mount Everest
  • Will pass within 27,975,269 km of Earth in 2143
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

159923 (2004 YJ32) is a mid-sized asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2004 YJ32 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.

2004 YJ32 orbits the sun every 1,460 days (4.00 years), coming as close as 1.20 AU and reaching as far as 3.85 AU from the sun. Based on its brightness and the way it reflects light, 2004 YJ32 is probably between 1.376 to 3.076 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

Close Approaches

2004 YJ32's orbit is 0.22 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.

2004 YJ32 has 2 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 29, 2143 27,975,269 7.666
Aug. 28, 2194 21,158,306 7.689

Images and Observations

2004 YJ32's orbit is determined by observations dating back to Jan. 15, 1997. It was last officially observed on May 22, 2023. The IAU Minor Planet Center records 354 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 2004 YJ32:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.523 AU
  • Eccentricity: 0.5245
  • Inclination: 7.52°
  • Longitude of Ascending Node: 118.7°
  • Argument of Periapsis: 234.3°
  • Mean Anomaly: 309.31°

Physical Characteristics

  • Diameter: ~1.776 km
  • Magnitude: 16.43

Derived Characteristics

  • Orbit Period: 1,460 days (4.00 years)
  • Avg. Orbit Speed: 18.80 km/s
  • Aphelion Distance: 3.85 AU
  • Perihelion Distance: 1.20 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 159923 (2004 YJ32) 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 2004 YJ32 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.