Key Facts

Overview

507119 (2009 SR143) is a mid-sized asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified 2009 SR143 as potentially hazardous because its orbit does not bring it close to Earth.

2009 SR143 orbits the sun every 2,770 days (7.58 years), coming as close as 1.83 AU and reaching as far as 5.90 AU from the sun. 2009 SR143 is about 3.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the island of Manhattan.

No Close Approaches

2009 SR143's orbit is 0.83 AU from Earth's orbit at its closest point. This means that there is a very wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

2009 SR143's orbit is determined by observations dating back to April 6, 2008. It was last officially observed on Nov. 26, 2017. The IAU Minor Planet Center records 78 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 2009 SR143:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 3.864 AU
  • Eccentricity: 0.5259
  • Inclination: 5.92°
  • Longitude of Ascending Node: 194.28°
  • Argument of Periapsis: 121.08°
  • Mean Anomaly: 319.51°

Physical Characteristics

  • Diameter: 3.36900 km
  • Magnitude: 16.56
  • Albedo: 0.043

Derived Characteristics

  • Orbit Period: 2,770 days (7.58 years)
  • Avg. Orbit Speed: 15.18 km/s
  • Aphelion Distance: 5.90 AU
  • Perihelion Distance: 1.83 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 507119 (2009 SR143) 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 2009 SR143 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.