Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to Mount Everest
  • Will pass within 21,580,175 km of Earth in 2033
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

155340 (2006 SK198) is a mid-sized asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2006 SK198 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.

2006 SK198 orbits the sun every 1,120 days (3.07 years), coming as close as 1.12 AU and reaching as far as 3.09 AU from the sun. Based on its brightness and the way it reflects light, 2006 SK198 is probably between 1.395 to 3.119 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to Mount Everest.

Close Approaches

2006 SK198's orbit is 0.11 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.

2006 SK198 has 3 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 14, 2033 21,580,175 7.640
May 27, 2082 26,266,435 8.185
May 27, 2186 27,272,414 8.624

Images and Observations

2006 SK198's orbit is determined by observations dating back to Dec. 16, 2001. It was last officially observed on Dec. 26, 2022. The IAU Minor Planet Center records 541 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 2006 SK198:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.107 AU
  • Eccentricity: 0.4668
  • Inclination: 9.24°
  • Longitude of Ascending Node: 260.54°
  • Argument of Periapsis: 352.52°
  • Mean Anomaly: 294.74°

Physical Characteristics

  • Diameter: ~1.801 km
  • Magnitude: 16.4

Derived Characteristics

  • Orbit Period: 1,120 days (3.07 years)
  • Avg. Orbit Speed: 20.47 km/s
  • Aphelion Distance: 3.09 AU
  • Perihelion Distance: 1.12 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 155340 (2006 SK198) 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 2006 SK198 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.