619106 (2005 SQ)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 619106 (2005 SQ)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 16,447,451 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

619106 (2005 SQ) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2005 SQ as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2005 SQ orbits the sun every 777 days (2.13 years), coming as close as 0.70 AU and reaching as far as 2.60 AU from the sun. Based on its brightness and the way it reflects light, 2005 SQ is probably between 0.253 to 0.565 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to a football field.

Close Approaches

2005 SQ's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2005 SQ has 9 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Aug. 16, 2022 16,447,451 13.289
Aug. 29, 2039 7,975,751 18.048
March 3, 2052 29,138,028 22.278
March 15, 2069 2,147,945 16.306
Aug. 24, 2088 3,861,274 15.759
Aug. 31, 2105 8,736,737 18.159
March 14, 2152 3,810,402 17.141
March 29, 2169 21,221,244 12.434
Aug. 9, 2171 26,204,430 11.880

Images and Observations

2005 SQ's orbit is determined by observations dating back to Sept. 22, 2005. It was last officially observed on Oct. 2, 2022. The IAU Minor Planet Center records 484 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 2005 SQ:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.654 AU
  • Eccentricity: 0.5746
  • Inclination: 1.2°
  • Longitude of Ascending Node: 317.13°
  • Argument of Periapsis: 294.95°
  • Mean Anomaly: 203.61°

Physical Characteristics

  • Diameter: ~0.326 km
  • Magnitude: 20.11

Derived Characteristics

  • Orbit Period: 777 days (2.13 years)
  • Avg. Orbit Speed: 23.16 km/s
  • Aphelion Distance: 2.60 AU
  • Perihelion Distance: 0.70 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 619106 (2005 SQ) 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 2005 SQ 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.