Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge (0.83 km diameter)
  • Will pass within 24,913,756 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

154993 (2005 EA94) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 EA94 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 EA94 orbits the sun every 682 days (1.87 years), coming as close as 0.51 AU and reaching as far as 2.52 AU from the sun. 2005 EA94 is about 0.8 kilometers in diameter, making it small in absolute terms, but larger than ~97% of asteroids, comparable in size to the Golden Gate Bridge.

Close Approaches

2005 EA94's orbit is 0.08 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.

2005 EA94 has 14 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Feb. 15, 2020 24,913,756 18.282
Aug. 3, 2023 14,456,316 19.434
Feb. 17, 2048 23,385,786 18.892
Aug. 3, 2051 15,474,181 19.168
Feb. 17, 2076 23,752,858 18.779
Aug. 3, 2079 15,629,103 19.155
Feb. 18, 2104 23,650,326 18.856
Aug. 5, 2107 15,970,257 19.116
Feb. 19, 2132 23,463,152 19.015
Aug. 5, 2135 16,766,848 18.929
Feb. 21, 2160 22,124,423 19.743
Aug. 7, 2163 20,525,078 17.989
Feb. 24, 2188 21,292,689 21.478
Aug. 11, 2191 28,982,224 16.168

Images and Observations

2005 EA94's orbit is determined by observations dating back to June 1, 2002. It was last officially observed on Feb. 18, 2020. The IAU Minor Planet Center records 189 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 EA94:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 1.516 AU
  • Eccentricity: 0.6636
  • Inclination: 10.33°
  • Longitude of Ascending Node: 104.12°
  • Argument of Periapsis: 308.99°
  • Mean Anomaly: 79.94°

Physical Characteristics

  • Diameter: 0.82800 km
  • Magnitude: 17.8
  • Albedo: 0.195

Derived Characteristics

  • Orbit Period: 682 days (1.87 years)
  • Avg. Orbit Speed: 24.18 km/s
  • Aphelion Distance: 2.52 AU
  • Perihelion Distance: 0.51 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 154993 (2005 EA94) 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.