510055 (2010 FH81)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 510055 (2010 FH81)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field (0.20 km diameter)
  • Will pass within 23,221,258 km of Earth in 2029
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

510055 (2010 FH81) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 FH81 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2010 FH81 orbits the sun every 496 days (1.36 years), coming as close as 0.97 AU and reaching as far as 1.48 AU from the sun. 2010 FH81 is about 0.2 kilometers in diameter, making it a small to average asteroid, comparable in size to a football field.

Close Approaches

2010 FH81's orbit is 0.04 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.

2010 FH81 has 9 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 27, 2029 23,221,258 10.171
July 6, 2052 27,221,776 12.294
July 1, 2071 19,279,877 11.335
June 28, 2090 15,745,201 10.955
July 2, 2109 19,321,162 11.327
July 7, 2128 27,053,116 12.246
May 24, 2143 27,272,396 10.475
May 31, 2162 21,044,914 10.095
June 1, 2181 19,177,424 10.012

Images and Observations

2010 FH81's orbit is determined by observations dating back to March 30, 2010. It was last officially observed on Dec. 2, 2021. The IAU Minor Planet Center records 96 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 2010 FH81:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.226 AU
  • Eccentricity: 0.2105
  • Inclination: 16.79°
  • Longitude of Ascending Node: 84.61°
  • Argument of Periapsis: 158.28°
  • Mean Anomaly: 293.26°

Physical Characteristics

  • Diameter: 0.20000 km
  • Magnitude: 21.51
  • Albedo: 0.094

Derived Characteristics

  • Orbit Period: 496 days (1.36 years)
  • Avg. Orbit Speed: 26.89 km/s
  • Aphelion Distance: 1.48 AU
  • Perihelion Distance: 0.97 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 510055 (2010 FH81) 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 2010 FH81 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.