Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 25,787,381 km of Earth in 2049
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

162063 (1997 EH29) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1997 EH29 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.

1997 EH29 orbits the sun every 489 days (1.34 years), coming as close as 0.41 AU and reaching as far as 2.02 AU from the sun. Based on its brightness and the way it reflects light, 1997 EH29 is probably between 0.441 to 0.986 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

1997 EH29's orbit is 0.15 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.

1997 EH29 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Jan. 31, 2049 25,787,381 19.635
Feb. 2, 2053 22,552,215 21.718
Feb. 5, 2057 24,316,136 23.944
Feb. 2, 2148 26,566,472 19.277
Feb. 4, 2152 22,511,071 21.295
Feb. 7, 2156 23,089,842 23.399
Feb. 10, 2160 28,321,370 25.669

Images and Observations

1997 EH29's orbit is determined by observations dating back to March 7, 1997. It was last officially observed on March 27, 2017. The IAU Minor Planet Center records 126 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 1997 EH29:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.21423681293 AU
  • Eccentricity: 0.66639466568
  • Inclination: 13.0120008098°
  • Longitude of Ascending Node: 175.12697101°
  • Argument of Periapsis: 198.639695243°
  • Mean Anomaly: 308.079175849°

Physical Characteristics

  • Diameter: ~0.569 km
  • Magnitude: 18.9

Derived Characteristics

  • Orbit Period: 489 days (1.34 years)
  • Avg. Orbit Speed: 27.03 km/s
  • Aphelion Distance: 2.02 AU
  • Perihelion Distance: 0.41 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 162063 (1997 EH29) 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.