2011 CY71

Very small Amor-class Asteroid

Near-Earth
Space Reference » Amor-class Asteroids » 2011 CY71

Key Facts

Overview

2011 CY71 is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2011 CY71 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.

2011 CY71 orbits the sun every 3,860 days (10.57 years), coming as close as 1.11 AU and reaching as far as 8.52 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2011 CY71 is probably between 0.053 to 0.118 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

No Close Approaches

2011 CY71's orbit is 0.16 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.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

2011 CY71's orbit is determined by observations dating back to Feb. 13, 2011. It was last officially observed on Feb. 13, 2011. The IAU Minor Planet Center records 10 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 2011 CY71:

References

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Orbital Elements

  • Epoch: 2455605.5 JD
  • Semi-major axis: 4.816 AU
  • Eccentricity: 0.7701
  • Inclination: 17.3°
  • Longitude of Ascending Node: 333.33°
  • Argument of Periapsis: 213.55°
  • Mean Anomaly: 356.06°

Physical Characteristics

  • Diameter: ~0.068 km
  • Magnitude: 23.51

Derived Characteristics

  • Orbit Period: 3,860 days (10.57 years)
  • Avg. Orbit Speed: 13.57 km/s
  • Aphelion Distance: 8.52 AU
  • Perihelion Distance: 1.11 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2011 CY71 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 2011 CY71 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.