Key Facts

Overview

Siva is a relatively small asteroid with an orbit that crosses the orbit of Mars. NASA JPL has not classified Siva as potentially hazardous because its orbit does not bring it close to Earth.

Siva orbits the sun every 1,295 days (3.55 years), coming as close as 1.62 AU and reaching as far as 3.03 AU from the sun. Siva is about 10.4 kilometers in diameter, making it larger than most asteroids, comparable in size to the city of Boston.

The rotation of Siva has been observed. It completes a rotation on its axis every 5.22 days.

No Close Approaches

Siva's orbit is 0.72 AU from Earth's orbit at its closest point. This means that there is an 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

Siva's orbit is determined by observations dating back to Nov. 12, 1930. It was last officially observed on Aug. 19, 2019. The IAU Minor Planet Center records 1,316 observations used to determine its orbit.

Scientists have been able to determine this object's shape.

View asteroid Siva in 3D.

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 Siva:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 2.32515436799 AU
  • Eccentricity: 0.301169639687
  • Inclination: 22.1658536551°
  • Longitude of Ascending Node: 0.855639993271°
  • Argument of Periapsis: 59.5526508809°
  • Mean Anomaly: 316.860368372°

Physical Characteristics

  • Diameter: 10.37000 km
  • Magnitude: 12.43
  • Albedo: 0.1751
  • Spectral type (Tholen): S

Derived Characteristics

  • Orbit Period: 1,295 days (3.55 years)
  • Avg. Orbit Speed: 19.53 km/s
  • Aphelion Distance: 3.03 AU
  • Perihelion Distance: 1.62 AU
  • Rotation Period: 5.22 days

Size Comparison

Orbit Simulation

Sky Map

The position of Siva 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.