Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.74 km diameter)
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

163348 (2002 NN4) is a small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2002 NN4 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2002 NN4 orbits the sun every 299 days (0.82 years), coming as close as 0.50 AU and reaching as far as 1.26 AU from the sun. 2002 NN4 is about 0.7 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, comparable in size to the Golden Gate Bridge.

The rotation of 2002 NN4 has been observed. It completes a rotation on its axis every 14.50 hours.

No Close Approaches

2002 NN4's orbit is 0.01 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

2002 NN4's orbit is determined by observations dating back to July 2, 2002. It was last officially observed on June 20, 2021. The IAU Minor Planet Center records 685 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 2002 NN4:

References

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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 0.8759 AU
  • Eccentricity: 0.4346
  • Inclination: 5.42°
  • Longitude of Ascending Node: 259.47°
  • Argument of Periapsis: 222.17°
  • Mean Anomaly: 199.99°

Physical Characteristics

  • Diameter: 0.73500 km
  • Magnitude: 20.1
  • Albedo: 0.030

Derived Characteristics

  • Orbit Period: 299 days (0.82 years)
  • Avg. Orbit Speed: 31.87 km/s
  • Aphelion Distance: 1.26 AU
  • Perihelion Distance: 0.50 AU
  • Rotation Period: 14.50 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 163348 (2002 NN4) 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 2002 NN4 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.