2010 DJ77

Very small Aten-class Asteroid

Near-Earth
Space Reference » Aten-class Asteroids » 2010 DJ77

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a football field (0.28 km diameter)
  • Will pass within 18,318,089 km of Earth in 2025
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2010 DJ77 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2010 DJ77 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.

2010 DJ77 orbits the sun every 341 days (0.93 years), coming as close as 0.75 AU and reaching as far as 1.16 AU from the sun. 2010 DJ77 is about 0.3 kilometers in diameter, making it a small to average asteroid, comparable in size to a football field.

Close Approaches

2010 DJ77's orbit is 0.05 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.

2010 DJ77 has 20 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 30, 2025 18,318,089 15.791
Jan. 20, 2037 22,337,348 16.376
June 27, 2039 27,825,826 17.094
Jan. 15, 2051 16,159,239 15.172
July 13, 2052 23,067,773 12.698
Jan. 11, 2065 16,041,948 14.625
July 11, 2066 16,683,089 12.980
Jan. 7, 2079 19,026,252 14.182
July 8, 2080 10,646,604 13.426
Jan. 6, 2093 20,356,102 14.071
July 8, 2094 9,306,483 13.581
Jan. 6, 2107 22,117,482 13.966
July 7, 2108 8,080,228 13.772
Jan. 6, 2121 21,243,953 14.007
July 8, 2122 8,623,410 13.673
Jan. 7, 2135 20,972,968 14.019
July 8, 2136 8,915,590 13.623
Jan. 9, 2149 18,089,598 14.240
July 10, 2150 12,155,004 13.293
July 11, 2164 16,526,738 12.998

Images and Observations

2010 DJ77's orbit is determined by observations dating back to Feb. 19, 2010. It was last officially observed on June 7, 2010. The IAU Minor Planet Center records 49 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 DJ77:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9547 AU
  • Eccentricity: 0.2108
  • Inclination: 24.75°
  • Longitude of Ascending Node: 286.72°
  • Argument of Periapsis: 103.78°
  • Mean Anomaly: 304.82°

Physical Characteristics

  • Diameter: 0.27700 km
  • Magnitude: 21.95

Derived Characteristics

  • Orbit Period: 341 days (0.93 years)
  • Avg. Orbit Speed: 30.46 km/s
  • Aphelion Distance: 1.16 AU
  • Perihelion Distance: 0.75 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2010 DJ77 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 2010 DJ77 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.