Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 21,787,809 km of Earth in 2021
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

87024 (2000 JS66) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2000 JS66 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.

2000 JS66 orbits the sun every 478 days (1.31 years), coming as close as 0.97 AU and reaching as far as 1.42 AU from the sun. Based on its brightness and the way it reflects light, 2000 JS66 is probably between 0.484 to 1.082 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2000 JS66's orbit is 0.10 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

2000 JS66 has 18 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 21, 2021 21,787,809 7.746
Oct. 27, 2021 22,907,093 8.264
Oct. 23, 2038 20,927,912 9.298
Oct. 23, 2055 29,045,093 11.397
May 24, 2059 22,403,117 11.013
May 24, 2076 14,728,334 9.124
May 23, 2093 18,006,118 8.078
Oct. 30, 2093 25,609,152 8.045
May 20, 2110 27,598,189 7.538
Oct. 26, 2110 20,600,789 8.708
Oct. 24, 2127 23,733,922 10.281
May 24, 2131 29,328,365 12.234
May 25, 2148 16,866,535 9.838
May 25, 2165 15,636,044 8.497
Nov. 3, 2165 28,821,434 7.935
May 23, 2182 22,781,340 7.719
Oct. 28, 2182 22,150,829 8.305
Oct. 25, 2199 20,604,818 9.406

Images and Observations

2000 JS66's orbit is determined by observations dating back to Jan. 6, 1979. It was last officially observed on Feb. 5, 2018. The IAU Minor Planet Center records 1,025 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 2000 JS66:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.19654858656 AU
  • Eccentricity: 0.189724473666
  • Inclination: 14.4340917581°
  • Longitude of Ascending Node: 230.550933648°
  • Argument of Periapsis: 84.9253650268°
  • Mean Anomaly: 91.6551504055°

Physical Characteristics

  • Diameter: ~0.624 km
  • Magnitude: 18.7

Derived Characteristics

  • Orbit Period: 478 days (1.31 years)
  • Avg. Orbit Speed: 27.23 km/s
  • Aphelion Distance: 1.42 AU
  • Perihelion Distance: 0.97 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 87024 (2000 JS66) 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.