Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.38 km diameter)
  • Will pass within 5,327,470 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

504800 (2010 CO1) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 CO1 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2010 CO1 orbits the sun every 372 days (1.02 years), coming as close as 0.79 AU and reaching as far as 1.23 AU from the sun. 2010 CO1 is about 0.4 kilometers in diameter, making it small in absolute terms, but larger than 90% of asteroids, comparable in size to the U.S. Capitol building.

Close Approaches

2010 CO1's orbit is 0.02 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.

2010 CO1 has 23 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 14, 2019 5,327,470 14.355
Sept. 16, 2020 21,188,875 16.416
Feb. 27, 2064 24,553,078 17.048
March 5, 2065 12,435,812 15.048
March 13, 2066 17,211,993 13.709
Sept. 11, 2071 24,825,237 12.260
Sept. 11, 2072 8,606,499 13.217
Sept. 14, 2073 8,943,283 14.823
Sept. 18, 2074 25,452,614 17.016
Feb. 28, 2118 23,280,604 16.860
March 7, 2119 12,008,736 14.934
March 14, 2120 17,837,022 13.658
Sept. 12, 2125 25,011,713 12.259
Sept. 13, 2126 8,825,049 13.193
Sept. 16, 2127 8,589,841 14.788
Sept. 18, 2128 25,124,706 16.967
Feb. 29, 2172 23,534,473 16.907
March 7, 2173 12,018,936 14.968
March 15, 2174 17,516,253 13.672
Sept. 12, 2179 25,654,776 12.244
Sept. 12, 2180 9,551,226 13.129
Sept. 15, 2181 7,717,954 14.689
Sept. 19, 2182 24,066,172 16.814

Images and Observations

2010 CO1's orbit is determined by observations dating back to Jan. 31, 2010. It was last officially observed on Nov. 8, 2019. The IAU Minor Planet Center records 131 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 CO1:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.012 AU
  • Eccentricity: 0.2178
  • Inclination: 24.02°
  • Longitude of Ascending Node: 351.57°
  • Argument of Periapsis: 252.64°
  • Mean Anomaly: 331.31°

Physical Characteristics

  • Diameter: 0.38000 km
  • Magnitude: 21.9
  • Albedo: 0.032

Derived Characteristics

  • Orbit Period: 372 days (1.02 years)
  • Avg. Orbit Speed: 29.60 km/s
  • Aphelion Distance: 1.23 AU
  • Perihelion Distance: 0.79 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 504800 (2010 CO1) 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 2010 CO1 to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.