Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 15,474,698 km of Earth in 2036
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

155336 (2006 GA1) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2006 GA1 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.

2006 GA1 orbits the sun every 1,130 days (3.09 years), coming as close as 0.56 AU and reaching as far as 3.68 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2006 GA1 is probably between 0.553 to 1.236 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

2006 GA1's orbit is 0.07 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.

2006 GA1 has 9 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 14, 2036 15,474,698 24.129
Feb. 18, 2046 11,969,310 21.000
Aug. 16, 2073 12,165,424 23.312
Feb. 11, 2083 26,092,473 17.374
Aug. 16, 2110 18,577,850 24.885
Feb. 16, 2120 18,905,213 18.829
Aug. 30, 2150 23,909,988 18.008
Feb. 14, 2160 24,086,883 17.894
Sept. 4, 2190 28,112,216 16.835

Images and Observations

2006 GA1's orbit is determined by observations dating back to July 14, 1999. It was last officially observed on May 28, 2022. The IAU Minor Planet Center records 148 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 2006 GA1:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.12 AU
  • Eccentricity: 0.7377
  • Inclination: 4.19°
  • Longitude of Ascending Node: 64.34°
  • Argument of Periapsis: 355.29°
  • Mean Anomaly: 277.72°

Physical Characteristics

  • Diameter: ~0.714 km
  • Magnitude: 18.41

Derived Characteristics

  • Orbit Period: 1,130 days (3.09 years)
  • Avg. Orbit Speed: 20.41 km/s
  • Aphelion Distance: 3.68 AU
  • Perihelion Distance: 0.56 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 155336 (2006 GA1) 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 2006 GA1 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.