Zdenka

3364 Zdenka (1984 GF)

Space Reference » Main-belt Asteroids » Zdenka

Key Facts

Overview

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

Zdenka orbits the sun every 1,190 days (3.26 years), coming as close as 1.97 AU and reaching as far as 2.43 AU from the sun. Zdenka is about 5.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.

The rotation of Zdenka has been observed. It completes a rotation on its axis every 7.58 hours.

Zdenka's spectral type None (Tholen) / S (SMASSII) indicates that it is likely to contain and .

No Close Approaches

Zdenka's orbit is 0.96 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

Zdenka's orbit is determined by observations dating back to Feb. 6, 1938. It was last officially observed on June 21, 2023. The IAU Minor Planet Center records 4,346 observations used to determine its orbit.

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

View asteroid Zdenka 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 Zdenka:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.199 AU
  • Eccentricity: 0.1046
  • Inclination: 5.55°
  • Longitude of Ascending Node: 145.98°
  • Argument of Periapsis: 108.16°
  • Mean Anomaly: 346.41°

Physical Characteristics

  • Diameter: 5.39900 km
  • Magnitude: 13.64
  • Albedo: 0.183
  • Spectral type (SMASS): S

Derived Characteristics

  • Orbit Period: 1,190 days (3.26 years)
  • Avg. Orbit Speed: 20.10 km/s
  • Aphelion Distance: 2.43 AU
  • Perihelion Distance: 1.97 AU
  • Rotation Period: 7.58 hours
  • Approx. Composition: and .

Map Comparison

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Orbit Simulation

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Sky Map

The position of Zdenka 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 Zdenka 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.