Key Facts

  • Classified as a Aten-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 25,829,397 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

86450 (2000 CK33) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2000 CK33 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.

2000 CK33 orbits the sun every 348 days (0.95 years), coming as close as 0.57 AU and reaching as far as 1.37 AU from the sun. Based on its brightness and the way it reflects light, 2000 CK33 is probably between 0.609 to 1.362 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

The rotation of 2000 CK33 has been observed. It completes a rotation on its axis every 6.60 days.

2000 CK33's spectral type (Tholen) / Xk (SMASSII) indicates that it is likely to contain nickel, iron, and cobalt.

Close Approaches

2000 CK33's orbit is 0.13 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

2000 CK33 has 12 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 8, 2020 25,829,397 17.888
Jan. 10, 2021 28,426,020 12.524
Jan. 8, 2040 27,506,022 18.336
Jan. 10, 2041 26,899,534 12.647
Jan. 8, 2060 29,170,042 18.782
Jan. 9, 2061 25,515,936 12.769
Jan. 8, 2081 24,285,222 12.935
Jan. 9, 2101 23,126,816 13.094
Jan. 9, 2121 22,659,785 13.156
Jan. 9, 2141 22,598,095 13.178
Jan. 9, 2161 22,397,146 13.193
Jan. 9, 2181 23,060,605 13.079

Images and Observations

2000 CK33's orbit is determined by observations dating back to Jan. 25, 2000. It was last officially observed on March 7, 2019. The IAU Minor Planet Center records 473 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 2000 CK33:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 0.968075694317 AU
  • Eccentricity: 0.414822512342
  • Inclination: 18.1064968882°
  • Longitude of Ascending Node: 124.868390761°
  • Argument of Periapsis: 215.599269734°
  • Mean Anomaly: 166.449305431°

Physical Characteristics

  • Diameter: ~0.786 km
  • Magnitude: 18.2
  • Spectral type (SMASS): Xk

Derived Characteristics

  • Orbit Period: 348 days (0.95 years)
  • Avg. Orbit Speed: 30.27 km/s
  • Aphelion Distance: 1.37 AU
  • Perihelion Distance: 0.57 AU
  • Rotation Period: 6.60 days
  • Approx. Composition: nickel, iron, and cobalt.

Size Comparison

Orbit Simulation

Sky Map

The position of 86450 (2000 CK33) 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.