152754 (1999 GS6)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 152754 (1999 GS6)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.41 km diameter)
  • Will pass within 17,184,239 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

152754 (1999 GS6) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1999 GS6 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1999 GS6 orbits the sun every 475 days (1.30 years), coming as close as 0.60 AU and reaching as far as 1.78 AU from the sun. 1999 GS6 is about 0.4 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, comparable in size to the U.S. Capitol building.

The rotation of 1999 GS6 has been observed. It completes a rotation on its axis every 8.02 hours.

Close Approaches

1999 GS6'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.

1999 GS6 has 19 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Sept. 15, 2019 17,184,239 11.590
March 25, 2025 18,288,286 11.380
Sept. 14, 2032 15,365,365 11.936
March 25, 2038 20,506,589 10.922
Sept. 13, 2045 12,060,043 12.604
March 23, 2051 24,681,830 10.082
Sept. 11, 2058 6,831,562 13.703
Sept. 10, 2071 3,427,778 14.541
Sept. 12, 2084 9,179,839 13.194
March 25, 2090 19,852,823 11.051
Sept. 17, 2097 23,366,272 10.335
March 31, 2103 6,991,150 13.817
April 1, 2116 4,395,094 14.802
April 5, 2129 10,137,210 16.723
April 10, 2142 26,002,568 20.020
Sept. 4, 2153 19,847,449 18.796
Sept. 9, 2166 5,648,012 15.864
Sept. 9, 2179 6,579,872 16.063
Sept. 3, 2192 24,475,966 19.729

Images and Observations

1999 GS6's orbit is determined by observations dating back to April 15, 1999. It was last officially observed on June 24, 2023. The IAU Minor Planet Center records 404 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 1999 GS6:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.191 AU
  • Eccentricity: 0.4974
  • Inclination: 2.02°
  • Longitude of Ascending Node: 314.43°
  • Argument of Periapsis: 134.95°
  • Mean Anomaly: 340.15°

Physical Characteristics

  • Diameter: 0.41400 km
  • Magnitude: 19.29
  • Albedo: 0.216

Derived Characteristics

  • Orbit Period: 475 days (1.30 years)
  • Avg. Orbit Speed: 27.28 km/s
  • Aphelion Distance: 1.78 AU
  • Perihelion Distance: 0.60 AU
  • Rotation Period: 8.02 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 152754 (1999 GS6) 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 1999 GS6 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.