Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.53 km diameter)
  • Will pass within 24,656,566 km of Earth in 2061
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

10636 (1998 QK56) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1998 QK56 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

1998 QK56 orbits the sun every 945 days (2.59 years), coming as close as 0.92 AU and reaching as far as 2.85 AU from the sun. 1998 QK56 is about 0.5 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, comparable in size to the Golden Gate Bridge.

The rotation of 1998 QK56 has been observed. It completes a rotation on its axis every 9.88 hours.

Close Approaches

1998 QK56's orbit is 0.11 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.

1998 QK56 has 4 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Feb. 8, 2061 24,656,566 9.451
Feb. 25, 2092 19,394,391 14.363
Feb. 16, 2136 19,115,497 10.638
March 2, 2167 27,325,784 16.336

Images and Observations

1998 QK56's orbit is determined by observations dating back to May 16, 1955. It was last officially observed on April 29, 2022. The IAU Minor Planet Center records 805 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 1998 QK56:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.884 AU
  • Eccentricity: 0.5127
  • Inclination: 13.58°
  • Longitude of Ascending Node: 172.93°
  • Argument of Periapsis: 286.31°
  • Mean Anomaly: 206.81°

Physical Characteristics

  • Diameter: 0.53300 km
  • Magnitude: 17.7
  • Albedo: 0.645

Derived Characteristics

  • Orbit Period: 945 days (2.59 years)
  • Avg. Orbit Speed: 21.69 km/s
  • Aphelion Distance: 2.85 AU
  • Perihelion Distance: 0.92 AU
  • Rotation Period: 9.88 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 10636 (1998 QK56) 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 1998 QK56 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.