484402 (2007 XH16)

Very small Apollo-class Asteroid

Near-Earth Potentially Hazardous
Space Reference » Apollo-class Asteroids » 484402 (2007 XH16)

Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the U.S. Capitol building (0.45 km diameter)
  • Will pass within 11,247,007 km of Earth in 2029
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

484402 (2007 XH16) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2007 XH16 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2007 XH16 orbits the sun every 472 days (1.29 years), coming as close as 0.91 AU and reaching as far as 1.47 AU from the sun. 2007 XH16 is about 0.5 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 2007 XH16 has been observed. It completes a rotation on its axis every 3.63 hours.

Close Approaches

2007 XH16's orbit is 0.01 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.

2007 XH16 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 20, 2029 11,247,007 16.640
Dec. 26, 2060 12,620,104 15.018
Dec. 23, 2082 2,665,124 15.847
Dec. 23, 2113 5,743,995 16.137
Dec. 31, 2122 24,386,693 14.677
Dec. 24, 2153 3,797,637 15.953
Dec. 29, 2162 16,092,637 14.870

Images and Observations

2007 XH16's orbit is determined by observations dating back to Dec. 8, 2007. It was last officially observed on June 6, 2021. The IAU Minor Planet Center records 459 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 2007 XH16:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.187 AU
  • Eccentricity: 0.2348
  • Inclination: 27.43°
  • Longitude of Ascending Node: 91.27°
  • Argument of Periapsis: 58.34°
  • Mean Anomaly: 18.13°

Physical Characteristics

  • Diameter: 0.45200 km
  • Magnitude: 19.68
  • Albedo: 0.125

Derived Characteristics

  • Orbit Period: 472 days (1.29 years)
  • Avg. Orbit Speed: 27.36 km/s
  • Aphelion Distance: 1.47 AU
  • Perihelion Distance: 0.91 AU
  • Rotation Period: 3.63 hours

Map Comparison

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Orbit Simulation

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Sky Map

The position of 484402 (2007 XH16) 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 2007 XH16 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.