Key Facts

Overview

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

Tina orbits the sun every 1,700 days (4.65 years), coming as close as 2.09 AU and reaching as far as 3.49 AU from the sun. Tina is about 25.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Indianapolis.

The rotation of Tina has been observed. It completes a rotation on its axis every 13.40 hours.

Tina's spectral type None (Tholen) / X (SMASSII) indicates that it is likely to contain iron, nickel, and cobalt.

No Close Approaches

Tina's orbit is 1.15 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

Tina's orbit is determined by observations dating back to June 11, 1932. It was last officially observed on May 3, 2023. The IAU Minor Planet Center records 4,729 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 Tina:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.793 AU
  • Eccentricity: 0.25
  • Inclination: 19.59°
  • Longitude of Ascending Node: 245.74°
  • Argument of Periapsis: 59.78°
  • Mean Anomaly: 177.85°

Physical Characteristics

  • Diameter: 25.78100 km
  • Magnitude: 11.24
  • Albedo: 0.202
  • Spectral type (SMASS): X

Derived Characteristics

  • Orbit Period: 1,700 days (4.65 years)
  • Avg. Orbit Speed: 17.87 km/s
  • Aphelion Distance: 3.49 AU
  • Perihelion Distance: 2.09 AU
  • Rotation Period: 13.40 hours
  • Approx. Composition: iron, nickel, and cobalt.

Map Comparison

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Orbit Simulation

Sky Map

The position of Tina 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.