194006 (2001 SG10)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 194006 (2001 SG10)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 23,947,723 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

194006 (2001 SG10) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2001 SG10 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2001 SG10 orbits the sun every 637 days (1.74 years), coming as close as 0.83 AU and reaching as far as 2.06 AU from the sun. Based on its brightness and the way it reflects light, 2001 SG10 is probably between 0.215 to 0.481 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

2001 SG10's spectral type None (Tholen) / X (SMASSII) indicates that it is likely to contain iron, nickel, and cobalt.

Close Approaches

2001 SG10'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.

2001 SG10 has 19 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 3, 2022 23,947,723 8.654
May 3, 2029 7,560,897 10.761
April 22, 2036 19,174,087 15.022
Sept. 22, 2062 15,285,566 14.461
Sept. 9, 2069 8,047,080 10.044
July 27, 2076 27,294,929 9.322
June 12, 2083 26,059,931 8.964
May 2, 2090 6,995,141 11.076
April 19, 2097 28,750,507 16.961
Sept. 24, 2116 16,723,935 14.749
Sept. 9, 2123 10,569,235 9.583
July 22, 2130 28,287,770 9.529
June 5, 2137 24,079,011 8.691
May 1, 2144 6,963,556 11.771
Sept. 22, 2170 11,193,075 13.671
Sept. 5, 2177 13,615,580 9.109
July 22, 2184 28,396,056 9.561
June 9, 2191 24,938,850 8.812
May 3, 2198 6,964,845 11.481

Images and Observations

2001 SG10's orbit is determined by observations dating back to Feb. 20, 2001. It was last officially observed on Dec. 1, 2022. The IAU Minor Planet Center records 430 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 2001 SG10:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.449 AU
  • Eccentricity: 0.4243
  • Inclination: 4.26°
  • Longitude of Ascending Node: 184.94°
  • Argument of Periapsis: 101.6°
  • Mean Anomaly: 248.79°

Physical Characteristics

  • Diameter: ~0.278 km
  • Magnitude: 20.46
  • Spectral type (SMASS): X

Derived Characteristics

  • Orbit Period: 637 days (1.74 years)
  • Avg. Orbit Speed: 24.75 km/s
  • Aphelion Distance: 2.06 AU
  • Perihelion Distance: 0.83 AU
  • Approx. Composition: iron, nickel, and cobalt.

Map Comparison

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Orbit Simulation

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Sky Map

The position of 194006 (2001 SG10) 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 2001 SG10 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.