Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 16,032,381 km of Earth in 2025
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2008 JL24 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2008 JL24 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.

2008 JL24 orbits the sun every 386 days (1.06 years), coming as close as 0.93 AU and reaching as far as 1.15 AU from the sun. Based on its brightness and the way it reflects light, 2008 JL24 is probably between 0.002 to 0.009 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

The rotation of 2008 JL24 has been observed. It completes a rotation on its axis every 0.05 hours.

Close Approaches

2008 JL24's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2008 JL24 has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Oct. 16, 2025 16,032,381 2.491
March 5, 2026 9,123,173 2.403
June 21, 2026 13,918,461 1.990
Dec. 9, 2043 2,848,110 3.322
Aug. 28, 2044 19,104,329 3.059
May 17, 2045 2,484,137 3.277

NASA Sentry has assessed impact risk for 6 very close approach scenarios. Here are the top scenarios ordered by probability of impact:

Date Probability of Impact (%) Impact Energy (Mt)
Jan. 22, 2091 0.00003 0.001472
Nov. 21, 2104 0.00002 0.001476
Jan. 22, 2109 0.00001 0.001475
Nov. 20, 2105 0.00001 0.001474
Jan. 5, 2111 0.00001 0.001474
Jan. 12, 2105 0.00000 0.001473

Images and Observations

2008 JL24's orbit is determined by observations dating back to May 11, 2008. It was last officially observed on May 16, 2008. The IAU Minor Planet Center records 88 observations used to determine its orbit.

Accessibility and Exploration

2008 JL24 can be reached with a journey of 354 days. This trajectory would require a delta-v of 4.093 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 1,988,749 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2008 JL24.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2008 JL24:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.038 AU
  • Eccentricity: 0.1065
  • Inclination: 0.55°
  • Longitude of Ascending Node: 225.64°
  • Argument of Periapsis: 282.19°
  • Mean Anomaly: 250.86°

Physical Characteristics

  • Diameter: ~0.006 km
  • Magnitude: 29.6

Derived Characteristics

  • Orbit Period: 386 days (1.06 years)
  • Avg. Orbit Speed: 29.26 km/s
  • Aphelion Distance: 1.15 AU
  • Perihelion Distance: 0.93 AU
  • Rotation Period: 0.05 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 2008 JL24 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.