Key Facts

Overview

Otrera is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified Otrera as potentially hazardous because its orbit does not bring it close to Earth.

Otrera orbits the sun every 61,100 days (167.28 years), coming as close as 29.34 AU and reaching as far as 31.40 AU from the sun. Based on its brightness and the way it reflects light, Otrera is probably between 43.909 to 98.184 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Rhode Island.

No Close Approaches

Otrera's orbit is 28.30 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

Otrera's orbit is determined by observations dating back to Oct. 31, 2002. It was last officially observed on Oct. 6, 2013. The IAU Minor Planet Center records 31 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 Otrera:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 30.37 AU
  • Eccentricity: 0.0338
  • Inclination: 1.43°
  • Longitude of Ascending Node: 34.76°
  • Argument of Periapsis: 3.45°
  • Mean Anomaly: 8.61°

Physical Characteristics

  • Diameter: ~56.686 km
  • Magnitude: 8.91

Derived Characteristics

  • Orbit Period: 61,100 days (167.28 years)
  • Avg. Orbit Speed: 5.41 km/s
  • Aphelion Distance: 31.40 AU
  • Perihelion Distance: 29.34 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of Otrera 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.