Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.42 km diameter)
  • Will pass within 17,843,317 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2010 KB61 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 KB61 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2010 KB61 orbits the sun every 526 days (1.44 years), coming as close as 0.98 AU and reaching as far as 1.57 AU from the sun. 2010 KB61 is about 0.4 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, comparable in size to the U.S. Capitol building.

Close Approaches

2010 KB61's orbit is 0.05 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.

2010 KB61 has 10 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 21, 2023 17,843,317 22.985
May 12, 2036 22,528,797 24.871
May 19, 2059 10,317,456 23.265
May 11, 2072 29,153,679 25.434
May 19, 2095 9,229,731 23.331
May 12, 2108 28,787,182 25.409
May 21, 2131 11,394,473 23.221
May 13, 2144 23,073,256 24.934
May 23, 2167 19,763,606 22.940
May 16, 2180 14,444,394 24.290

Images and Observations

2010 KB61's orbit is determined by observations dating back to May 26, 2010. It was last officially observed on May 25, 2023. The IAU Minor Planet Center records 142 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 2010 KB61:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.275 AU
  • Eccentricity: 0.2337
  • Inclination: 44.6°
  • Longitude of Ascending Node: 55.94°
  • Argument of Periapsis: 234.96°
  • Mean Anomaly: 41.6°

Physical Characteristics

  • Diameter: 0.41700 km
  • Magnitude: 20.42
  • Albedo: 0.065

Derived Characteristics

  • Orbit Period: 526 days (1.44 years)
  • Avg. Orbit Speed: 26.37 km/s
  • Aphelion Distance: 1.57 AU
  • Perihelion Distance: 0.98 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2010 KB61 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 below comparison is an artistic rendering that uses available data on the diameter of 2010 KB61 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.