Key Facts

Overview

134690 (1999 XP61) is a mid-sized asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified 1999 XP61 as potentially hazardous because its orbit does not bring it close to Earth.

1999 XP61 orbits the sun every 2,940 days (8.05 years), coming as close as 3.00 AU and reaching as far as 5.04 AU from the sun. 1999 XP61 is about 9.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the city of Boston.

No Close Approaches

1999 XP61's orbit is 2.00 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

1999 XP61's orbit is determined by observations dating back to Dec. 4, 1991. It was last officially observed on Nov. 21, 2022. The IAU Minor Planet Center records 858 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 1999 XP61:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 4.019 AU
  • Eccentricity: 0.2529
  • Inclination: 2.85°
  • Longitude of Ascending Node: 190.89°
  • Argument of Periapsis: 184.21°
  • Mean Anomaly: 22.3°

Physical Characteristics

  • Diameter: 9.92200 km
  • Magnitude: 14.32
  • Albedo: 0.045

Derived Characteristics

  • Orbit Period: 2,940 days (8.05 years)
  • Avg. Orbit Speed: 14.87 km/s
  • Aphelion Distance: 5.04 AU
  • Perihelion Distance: 3.00 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 134690 (1999 XP61) 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.