Tanakadate

10300 Tanakadate (1989 EG1)

Space Reference » Main-belt Asteroids » Tanakadate

Key Facts

Overview

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

Tanakadate orbits the sun every 1,220 days (3.34 years), coming as close as 2.00 AU and reaching as far as 2.46 AU from the sun. Tanakadate 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

Tanakadate's orbit is 1.01 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

Tanakadate's orbit is determined by observations dating back to Aug. 26, 1987. It was last officially observed on June 26, 2023. The IAU Minor Planet Center records 3,130 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 Tanakadate:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.23 AU
  • Eccentricity: 0.103
  • Inclination: 5.47°
  • Longitude of Ascending Node: 158.87°
  • Argument of Periapsis: 4.41°
  • Mean Anomaly: 139.06°

Physical Characteristics

  • Diameter: 3.35500 km
  • Magnitude: 14.69
  • Albedo: 0.299

Derived Characteristics

  • Orbit Period: 1,220 days (3.34 years)
  • Avg. Orbit Speed: 19.89 km/s
  • Aphelion Distance: 2.46 AU
  • Perihelion Distance: 2.00 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of Tanakadate 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 Tanakadate 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.