Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to the U.S. Pentagon
  • Will pass within 26,860,339 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

187026 (2005 EK70) is a mid-sized asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2005 EK70 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.

2005 EK70 orbits the sun every 343 days (0.94 years), coming as close as 0.83 AU and reaching as far as 1.09 AU from the sun. Based on its brightness and the way it reflects light, 2005 EK70 is probably between 0.880 to 1.968 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. Pentagon.

Close Approaches

2005 EK70's orbit is 0.09 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.

2005 EK70 has 18 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 27, 2023 26,860,339 17.455
Feb. 20, 2024 14,492,590 15.110
Aug. 16, 2039 29,404,635 17.410
Feb. 21, 2040 19,895,115 15.576
Feb. 18, 2055 22,453,534 15.189
Aug. 27, 2070 26,888,258 17.456
Feb. 20, 2071 14,510,864 15.114
Aug. 16, 2086 29,550,255 17.415
Feb. 21, 2087 20,172,147 15.596
Feb. 19, 2102 21,798,696 15.180
Aug. 27, 2117 26,833,092 17.447
Feb. 21, 2118 14,479,467 15.135
Feb. 22, 2134 21,317,212 15.684
Feb. 19, 2149 20,581,952 15.139
Aug. 26, 2164 26,771,673 17.430
Feb. 21, 2165 14,560,582 15.161
Feb. 22, 2181 23,191,364 15.808
Feb. 20, 2196 18,808,847 15.108

Images and Observations

2005 EK70's orbit is determined by observations dating back to March 8, 2005. It was last officially observed on April 15, 2023. The IAU Minor Planet Center records 630 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 2005 EK70:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9597 AU
  • Eccentricity: 0.1354
  • Inclination: 30.0°
  • Longitude of Ascending Node: 329.79°
  • Argument of Periapsis: 347.09°
  • Mean Anomaly: 29.39°

Physical Characteristics

  • Diameter: ~1.136 km
  • Magnitude: 17.4

Derived Characteristics

  • Orbit Period: 343 days (0.94 years)
  • Avg. Orbit Speed: 30.44 km/s
  • Aphelion Distance: 1.09 AU
  • Perihelion Distance: 0.83 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 187026 (2005 EK70) 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 2005 EK70 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.