10145 (1994 CK1)

Mid-sized Apollo-class Asteroid

Near-Earth
Space Reference » Apollo-class Asteroids » 10145 (1994 CK1)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Pentagon
  • Will pass within 14,869,906 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

10145 (1994 CK1) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1994 CK1 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.

1994 CK1 orbits the sun every 957 days (2.62 years), coming as close as 0.70 AU and reaching as far as 3.10 AU from the sun. Based on its brightness and the way it reflects light, 1994 CK1 is probably between 1.053 to 2.355 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. Pentagon.

The rotation of 1994 CK1 has been observed. It completes a rotation on its axis every 49.29 hours.

Close Approaches

1994 CK1's orbit is 0.06 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.

1994 CK1 has 9 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 6, 2019 14,869,906 15.309
June 20, 2040 21,641,339 21.364
Dec. 10, 2066 19,087,955 20.595
Dec. 4, 2087 11,149,569 17.291
Nov. 14, 2108 28,568,291 12.891
July 7, 2116 14,065,857 15.439
June 29, 2137 10,528,201 18.651
Dec. 15, 2163 23,745,066 21.764
Dec. 8, 2184 11,586,869 18.411

Images and Observations

1994 CK1's orbit is determined by observations dating back to Feb. 10, 1994. It was last officially observed on March 28, 2023. The IAU Minor Planet Center records 1,351 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 1994 CK1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.901 AU
  • Eccentricity: 0.6328
  • Inclination: 4.55°
  • Longitude of Ascending Node: 328.4°
  • Argument of Periapsis: 27.43°
  • Mean Anomaly: 198.01°

Physical Characteristics

  • Diameter: ~1.360 km
  • Magnitude: 17.01

Derived Characteristics

  • Orbit Period: 957 days (2.62 years)
  • Avg. Orbit Speed: 21.61 km/s
  • Aphelion Distance: 3.10 AU
  • Perihelion Distance: 0.70 AU
  • Rotation Period: 49.29 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 10145 (1994 CK1) 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 above comparison is an artistic rendering that uses available data on the diameter of 1994 CK1 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.