Key Facts

  • Classified as a Apollo-class Asteroid
  • Comparable in size to Mount Everest
  • Will pass within 27,322,080 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

528859 (2009 CR5) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2009 CR5 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.

2009 CR5 orbits the sun every 408 days (1.12 years), coming as close as 0.79 AU and reaching as far as 1.36 AU from the sun. Based on its brightness and the way it reflects light, 2009 CR5 is probably between 0.660 to 2.960 kilometers in diameter, making it larger than most asteroids, very roughly comparable in size to Mount Everest.

Close Approaches

2009 CR5's orbit is 0.07 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.

2009 CR5 has 25 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 13, 2019 27,322,080 7.278
March 13, 2028 28,224,806 5.189
May 6, 2028 27,293,938 5.960
Sept. 30, 2029 12,062,235 9.770
March 28, 2047 10,303,050 8.352
Sept. 6, 2048 19,906,390 6.170
Oct. 7, 2058 25,177,466 12.990
March 21, 2066 26,015,501 13.206
March 30, 2076 20,120,540 5.210
Sept. 26, 2077 10,356,982 8.050
March 25, 2095 14,324,049 10.431
Aug. 17, 2096 26,219,328 7.030
May 12, 2105 28,368,037 6.314
Oct. 3, 2106 13,802,708 10.308
March 30, 2124 11,910,759 7.330
Sept. 17, 2125 16,307,651 6.335
March 24, 2143 20,830,178 12.022
Aug. 6, 2144 29,329,754 7.695
March 22, 2153 25,593,151 4.895
April 29, 2153 25,328,133 5.331
Oct. 1, 2154 10,996,031 9.261
March 29, 2172 10,496,703 8.223
Sept. 10, 2173 19,521,500 6.147
Oct. 10, 2183 27,639,899 13.511
March 24, 2191 23,226,782 12.570

Images and Observations

2009 CR5's orbit is determined by observations dating back to Feb. 14, 2009. It was last officially observed on Jan. 4, 2019. The IAU Minor Planet Center records 61 observations used to determine its orbit.

Accessibility and Exploration

2009 CR5 can be reached with a journey of 402 days. This trajectory would require a delta-v of 10.759 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 1,348 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2009 CR5.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2009 CR5:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.075862566 AU
  • Eccentricity: 0.262436524391
  • Inclination: 5.05222271213°
  • Longitude of Ascending Node: 316.749174424°
  • Argument of Periapsis: 321.330777296°
  • Mean Anomaly: 292.056653176°

Physical Characteristics

  • Diameter: ~1.810 km
  • Magnitude: 22.1

Derived Characteristics

  • Orbit Period: 408 days (1.12 years)
  • Avg. Orbit Speed: 28.72 km/s
  • Aphelion Distance: 1.36 AU
  • Perihelion Distance: 0.79 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 528859 (2009 CR5) 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.