31669 (1999 JT6)

Mid-sized Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 31669 (1999 JT6)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to Mount Everest
  • Will pass within 23,446,399 km of Earth in 2027
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

31669 (1999 JT6) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1999 JT6 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1999 JT6 orbits the sun every 1,140 days (3.12 years), coming as close as 0.90 AU and reaching as far as 3.37 AU from the sun. Based on its brightness and the way it reflects light, 1999 JT6 is probably between 1.565 to 3.500 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

The rotation of 1999 JT6 has been observed. It completes a rotation on its axis every 5.81 hours.

Close Approaches

1999 JT6's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

1999 JT6 has 8 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Feb. 18, 2027 23,446,399 10.642
Dec. 31, 2051 15,018,291 10.455
Dec. 14, 2076 4,037,242 11.355
March 5, 2102 24,930,795 12.130
Dec. 3, 2123 12,294,903 14.336
Jan. 28, 2149 21,547,892 10.074
March 6, 2174 24,074,595 11.881
Dec. 9, 2195 4,935,546 12.809

Images and Observations

1999 JT6's orbit is determined by observations dating back to June 12, 1996. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 760 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 1999 JT6:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.137 AU
  • Eccentricity: 0.5776
  • Inclination: 9.54°
  • Longitude of Ascending Node: 78.77°
  • Argument of Periapsis: 39.08°
  • Mean Anomaly: 331.22°

Physical Characteristics

  • Diameter: ~2.021 km
  • Magnitude: 16.15

Derived Characteristics

  • Orbit Period: 1,140 days (3.12 years)
  • Avg. Orbit Speed: 20.39 km/s
  • Aphelion Distance: 3.37 AU
  • Perihelion Distance: 0.90 AU
  • Rotation Period: 5.81 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 31669 (1999 JT6) 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 1999 JT6 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.