Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a basketball court
  • Will pass within 21,121,004 km of Earth in 2036
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2007 JH22 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2007 JH22 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2007 JH22 orbits the sun every 1,170 days (3.20 years), coming as close as 0.85 AU and reaching as far as 3.50 AU from the sun. Based on its brightness and the way it reflects light, 2007 JH22 is probably between 0.114 to 0.256 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a basketball court.

Close Approaches

2007 JH22'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.

2007 JH22 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
March 26, 2036 21,121,004 11.129
March 8, 2065 20,998,308 11.305
March 29, 2094 21,298,800 11.161
March 21, 2123 20,900,880 11.103
March 4, 2152 19,990,738 11.244
Feb. 13, 2181 14,049,828 11.421
May 22, 2197 23,811,041 16.726

Images and Observations

2007 JH22's orbit is determined by observations dating back to May 12, 2007. It was last officially observed on Jan. 1, 2020. The IAU Minor Planet Center records 95 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 JH22:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.177 AU
  • Eccentricity: 0.6093
  • Inclination: 5.58°
  • Longitude of Ascending Node: 150.89°
  • Argument of Periapsis: 22.9°
  • Mean Anomaly: 39.19°

Physical Characteristics

  • Diameter: ~0.148 km
  • Magnitude: 21.83

Derived Characteristics

  • Orbit Period: 1,170 days (3.20 years)
  • Avg. Orbit Speed: 20.24 km/s
  • Aphelion Distance: 3.50 AU
  • Perihelion Distance: 0.85 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2007 JH22 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 JH22 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.