442037 (2010 PR66)

Small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 442037 (2010 PR66)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.70 km diameter)
  • Will pass within 21,552,501 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

442037 (2010 PR66) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 PR66 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2010 PR66 orbits the sun every 1,830 days (5.01 years), coming as close as 0.92 AU and reaching as far as 4.94 AU from the sun. 2010 PR66 is about 0.7 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, comparable in size to the Golden Gate Bridge.

The rotation of 2010 PR66 has been observed. It completes a rotation on its axis every 2.07 hours.

Close Approaches

2010 PR66's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

2010 PR66 has 11 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 27, 2020 21,552,501 19.660
July 30, 2025 26,870,324 20.569
July 19, 2065 6,875,973 17.804
July 2, 2070 16,620,913 15.200
July 5, 2075 9,338,202 15.285
July 17, 2080 8,808,114 17.528
July 23, 2085 16,728,524 18.951
July 21, 2090 12,708,525 18.424
July 22, 2095 14,404,595 18.582
July 26, 2100 23,366,377 19.928
July 8, 2171 9,155,492 16.577

Images and Observations

2010 PR66's orbit is determined by observations dating back to April 18, 2010. It was last officially observed on Aug. 29, 2020. The IAU Minor Planet Center records 616 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 PR66:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.928 AU
  • Eccentricity: 0.6867
  • Inclination: 17.59°
  • Longitude of Ascending Node: 292.76°
  • Argument of Periapsis: 319.49°
  • Mean Anomaly: 231.54°

Physical Characteristics

  • Diameter: 0.69500 km
  • Magnitude: 19.27
  • Albedo: 0.063

Derived Characteristics

  • Orbit Period: 1,830 days (5.01 years)
  • Avg. Orbit Speed: 17.41 km/s
  • Aphelion Distance: 4.94 AU
  • Perihelion Distance: 0.92 AU
  • Rotation Period: 2.07 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 442037 (2010 PR66) 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 PR66 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.