382758 (2003 GY)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 382758 (2003 GY)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building
  • Will pass within 27,032,831 km of Earth in 2029
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

382758 (2003 GY) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2003 GY as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2003 GY orbits the sun every 592 days (1.62 years), coming as close as 0.94 AU and reaching as far as 1.82 AU from the sun. Based on its brightness and the way it reflects light, 2003 GY is probably between 0.159 to 0.713 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

2003 GY's orbit is 0.02 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.

2003 GY has 14 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 16, 2029 27,032,831 11.917
Sept. 16, 2037 24,320,979 12.071
Aug. 22, 2050 5,764,867 6.722
May 28, 2063 13,512,201 8.394
July 26, 2084 11,714,220 6.375
Sept. 8, 2105 8,099,720 8.741
July 4, 2118 12,583,080 6.355
May 19, 2131 25,761,426 11.669
Sept. 18, 2139 21,925,879 11.557
Aug. 8, 2152 9,695,293 6.392
May 26, 2165 16,427,118 9.363
Sept. 20, 2173 28,142,200 12.800
July 31, 2186 11,217,329 6.393
May 20, 2199 26,193,880 11.767

Images and Observations

2003 GY's orbit is determined by observations dating back to April 5, 2003. It was last officially observed on Feb. 8, 2019. The IAU Minor Planet Center records 344 observations used to determine its orbit.

Accessibility and Exploration

2003 GY can be reached with a journey of 362 days. This trajectory would require a delta-v of 11.543 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 48 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 2003 GY.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 2003 GY:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.38 AU
  • Eccentricity: 0.3172
  • Inclination: 4.67°
  • Longitude of Ascending Node: 321.79°
  • Argument of Periapsis: 334.17°
  • Mean Anomaly: 152.71°

Physical Characteristics

  • Diameter: ~0.436 km
  • Magnitude: 20.19

Derived Characteristics

  • Orbit Period: 592 days (1.62 years)
  • Avg. Orbit Speed: 25.36 km/s
  • Aphelion Distance: 1.82 AU
  • Perihelion Distance: 0.94 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 382758 (2003 GY) 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 2003 GY 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.