Key Facts

  • Categorized as a Amor-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 23,168,073 km of Earth in 2030
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

455687 (2005 EK94) is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 2005 EK94 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 EK94 orbits the sun every 1,020 days (2.79 years), coming as close as 1.03 AU and reaching as far as 2.93 AU from the sun. Based on its brightness and the way it reflects light, 2005 EK94 is probably between 0.369 to 0.824 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.

Close Approaches

2005 EK94's orbit is 0.04 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 EK94 has 4 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
July 15, 2030 23,168,073 13.385
July 5, 2069 8,539,071 11.179
June 7, 2122 24,908,553 10.353
June 25, 2161 9,561,719 10.069

Images and Observations

2005 EK94's orbit is determined by observations dating back to March 9, 2005. It was last officially observed on Oct. 24, 2019. The IAU Minor Planet Center records 146 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 EK94:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.978 AU
  • Eccentricity: 0.4802
  • Inclination: 14.19°
  • Longitude of Ascending Node: 103.0°
  • Argument of Periapsis: 154.97°
  • Mean Anomaly: 203.48°

Physical Characteristics

  • Diameter: ~0.476 km
  • Magnitude: 19.29

Derived Characteristics

  • Orbit Period: 1,020 days (2.79 years)
  • Avg. Orbit Speed: 21.10 km/s
  • Aphelion Distance: 2.93 AU
  • Perihelion Distance: 1.03 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 455687 (2005 EK94) 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 2005 EK94 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.