Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Pentagon (1.20 km diameter)
  • Will pass within 11,715,991 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

175706 (1996 FG3) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1996 FG3 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1996 FG3 orbits the sun every 395 days (1.08 years), coming as close as 0.69 AU and reaching as far as 1.42 AU from the sun. 1996 FG3 is about 1.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the U.S. Pentagon.

The rotation of 1996 FG3 has been observed. It completes a rotation on its axis every 3.59 hours.

1996 FG3's spectral type None (Tholen) / C (SMASSII) indicates that it is likely to contain water, iron, nickel, cobalt, nitrogen, and ammonia.

Close Approaches

1996 FG3's orbit is 0.03 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.

1996 FG3 has 24 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 3, 2022 11,715,991 8.959
Nov. 25, 2024 26,931,322 6.118
May 5, 2035 15,864,994 8.107
Nov. 22, 2037 19,263,143 7.319
May 5, 2048 26,136,179 6.097
Nov. 24, 2050 8,446,888 9.609
Nov. 28, 2063 9,220,213 12.750
April 24, 2073 23,086,749 15.557
Dec. 2, 2076 23,309,993 15.740
April 29, 2086 8,522,955 12.428
May 4, 2099 9,890,644 9.390
Nov. 24, 2101 23,829,453 6.496
May 6, 2112 19,570,948 7.328
Nov. 24, 2114 17,305,875 7.701
May 7, 2125 22,076,416 6.833
Nov. 24, 2127 14,591,072 8.247
May 7, 2138 19,342,028 7.394
Nov. 23, 2140 17,199,519 7.728
May 8, 2151 22,246,049 6.825
Nov. 24, 2153 14,825,050 8.217
Nov. 27, 2166 4,604,344 10.608
Nov. 30, 2179 8,072,520 12.520
April 27, 2189 18,024,332 14.527
Dec. 5, 2192 29,557,747 17.058

Images and Observations

1996 FG3's orbit is determined by observations dating back to Dec. 17, 1985. It was last officially observed on Feb. 16, 2021. The IAU Minor Planet Center records 1,670 observations used to determine its orbit.

Accessibility and Exploration

1996 FG3 can be reached with a journey of 450 days. This trajectory would require a delta-v of 11.274 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 44 potential trajectories and launch windows to this asteroid.

See more at the NHATS Mission Trajectories table for 1996 FG3.

Similar Objects

These objects have orbits that share similar characteristics to the orbit of 1996 FG3:

References

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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 1.054 AU
  • Eccentricity: 0.3498
  • Inclination: 1.99°
  • Longitude of Ascending Node: 299.68°
  • Argument of Periapsis: 24.07°
  • Mean Anomaly: 16.47°

Physical Characteristics

  • Diameter: 1.19600 km
  • Magnitude: 18.31
  • Albedo: 0.072
  • Spectral type (SMASS): C

Derived Characteristics

  • Orbit Period: 395 days (1.08 years)
  • Avg. Orbit Speed: 29.03 km/s
  • Aphelion Distance: 1.42 AU
  • Perihelion Distance: 0.69 AU
  • Rotation Period: 3.59 hours
  • Approx. Composition: water, iron, nickel, cobalt, nitrogen, and ammonia.

Map Comparison

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Orbit Simulation

Sky Map

The position of 175706 (1996 FG3) 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 1996 FG3 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.