Key Facts

Overview

69986 (1998 WW24) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 1998 WW24 as potentially hazardous because its orbit does not bring it close to Earth.

1998 WW24 orbits the sun every 91,100 days (249.42 years), coming as close as 30.56 AU and reaching as far as 48.70 AU from the sun. Based on its brightness and the way it reflects light, 1998 WW24 is probably between 51.116 to 114.298 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Rhode Island.

No Close Approaches

1998 WW24's orbit is 29.60 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.

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

Images and Observations

1998 WW24's orbit is determined by observations dating back to Nov. 18, 1998. It was last officially observed on Sept. 14, 2018. The IAU Minor Planet Center records 33 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 1998 WW24:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 39.63 AU
  • Eccentricity: 0.2288
  • Inclination: 13.91°
  • Longitude of Ascending Node: 233.86°
  • Argument of Periapsis: 147.04°
  • Mean Anomaly: 53.28°

Physical Characteristics

  • Diameter: ~65.990 km
  • Magnitude: 8.58

Derived Characteristics

  • Orbit Period: 91,100 days (249.42 years)
  • Avg. Orbit Speed: 4.73 km/s
  • Aphelion Distance: 48.70 AU
  • Perihelion Distance: 30.56 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 69986 (1998 WW24) 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.