Key Facts

Overview

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

Pisek orbits the sun every 1,540 days (4.22 years), coming as close as 2.22 AU and reaching as far as 3.00 AU from the sun. Pisek is about 22.6 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Pisek has been observed. It completes a rotation on its axis every 831.00 hours.

No Close Approaches

Pisek's orbit is 1.21 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

Pisek's orbit is determined by observations dating back to March 10, 1953. It was last officially observed on Feb. 17, 2023. The IAU Minor Planet Center records 4,763 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 Pisek:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.612 AU
  • Eccentricity: 0.1502
  • Inclination: 14.13°
  • Longitude of Ascending Node: 128.9°
  • Argument of Periapsis: 152.56°
  • Mean Anomaly: 151.03°

Physical Characteristics

  • Diameter: 22.62400 km
  • Magnitude: 12.53
  • Albedo: 0.045

Derived Characteristics

  • Orbit Period: 1,540 days (4.22 years)
  • Avg. Orbit Speed: 18.45 km/s
  • Aphelion Distance: 3.00 AU
  • Perihelion Distance: 2.22 AU
  • Rotation Period: 831.00 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of Pisek 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.