Key Facts

Overview

Rostropovich is a large asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Rostropovich as potentially hazardous because its orbit does not bring it close to Earth.

Rostropovich orbits the sun every 1,570 days (4.30 years), coming as close as 2.03 AU and reaching as far as 3.25 AU from the sun. Rostropovich is about 11.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Cleveland, Ohio.

The rotation of Rostropovich has been observed. It completes a rotation on its axis every 20.14 hours.

No Close Approaches

Rostropovich's orbit is 1.03 AU from Earth's orbit at its closest point. This means that there is an extremely 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

Rostropovich's orbit is determined by observations dating back to Aug. 24, 1974. It was last officially observed on May 10, 2023. The IAU Minor Planet Center records 3,490 observations used to determine its orbit.

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

View asteroid Rostropovich 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 Rostropovich:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.641 AU
  • Eccentricity: 0.2321
  • Inclination: 1.77°
  • Longitude of Ascending Node: 205.15°
  • Argument of Periapsis: 195.35°
  • Mean Anomaly: 120.7°

Physical Characteristics

  • Diameter: 11.87600 km
  • Magnitude: 13.74
  • Albedo: 0.045

Derived Characteristics

  • Orbit Period: 1,570 days (4.30 years)
  • Avg. Orbit Speed: 18.30 km/s
  • Aphelion Distance: 3.25 AU
  • Perihelion Distance: 2.03 AU
  • Rotation Period: 20.14 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Rostropovich 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.