187040 (2005 JS108)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 187040 (2005 JS108)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.43 km diameter)
  • Will pass within 12,974,245 km of Earth in 2024
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

187040 (2005 JS108) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 JS108 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 JS108 orbits the sun every 577 days (1.58 years), coming as close as 0.92 AU and reaching as far as 1.79 AU from the sun. 2005 JS108 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

2005 JS108's orbit is 0.02 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.

2005 JS108 has 16 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 14, 2024 12,974,245 10.474
Sept. 21, 2035 18,891,649 6.306
Nov. 20, 2046 28,058,816 12.527
July 10, 2054 23,426,030 12.469
Aug. 23, 2065 15,729,644 6.265
Nov. 15, 2076 19,894,637 10.463
Aug. 22, 2095 15,491,726 6.251
Nov. 19, 2106 23,597,004 11.469
July 12, 2114 22,104,116 12.216
Sept. 24, 2125 18,921,975 6.261
July 19, 2144 8,712,367 9.644
Sept. 25, 2155 18,974,398 6.253
Nov. 20, 2166 24,412,653 11.706
July 10, 2174 29,221,883 13.580
Aug. 8, 2185 11,109,624 6.458
Nov. 14, 2196 15,907,228 9.154

Images and Observations

2005 JS108's orbit is determined by observations dating back to Dec. 7, 2002. It was last officially observed on March 10, 2022. The IAU Minor Planet Center records 503 observations used to determine its orbit.

Accessibility and Exploration

2005 JS108 can be reached with a journey of 386 days. This trajectory would require a delta-v of 11.607 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 56 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2005 JS108.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2005 JS108:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.356 AU
  • Eccentricity: 0.3226
  • Inclination: 6.04°
  • Longitude of Ascending Node: 110.85°
  • Argument of Periapsis: 243.91°
  • Mean Anomaly: 138.84°

Physical Characteristics

  • Diameter: 0.43000 km
  • Magnitude: 19.23
  • Albedo: 0.199

Derived Characteristics

  • Orbit Period: 577 days (1.58 years)
  • Avg. Orbit Speed: 25.57 km/s
  • Aphelion Distance: 1.79 AU
  • Perihelion Distance: 0.92 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 187040 (2005 JS108) 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 2005 JS108 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.