Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to Mount Everest (1.80 km diameter)
  • Will pass within 4,024,761 km of Earth in 2022
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

7335 (1989 JA) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1989 JA as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1989 JA orbits the sun every 861 days (2.36 years), coming as close as 0.91 AU and reaching as far as 2.63 AU from the sun. 1989 JA is about 1.8 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to Mount Everest.

The rotation of 1989 JA has been observed. It completes a rotation on its axis every 12.00 hours.

Close Approaches

1989 JA's orbit is 0.02 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.

1989 JA has 6 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 27, 2022 4,024,761 13.116
June 23, 2055 27,707,927 10.625
May 20, 2081 12,703,288 15.355
May 21, 2114 11,366,008 15.176
June 4, 2154 13,455,135 11.751
May 21, 2187 12,132,054 15.383

Images and Observations

1989 JA's orbit is determined by observations dating back to April 6, 1989. It was last officially observed on Jan. 4, 2021. The IAU Minor Planet Center records 398 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 1989 JA:

References

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Orbital Elements

  • Epoch: 2459396.5 JD
  • Semi-major axis: 1.771 AU
  • Eccentricity: 0.4842
  • Inclination: 15.19°
  • Longitude of Ascending Node: 61.31°
  • Argument of Periapsis: 232.29°
  • Mean Anomaly: 205.82°

Physical Characteristics

  • Diameter: 1.80000 km
  • Magnitude: 17.52
  • Albedo: 0.448

Derived Characteristics

  • Orbit Period: 861 days (2.36 years)
  • Avg. Orbit Speed: 22.38 km/s
  • Aphelion Distance: 2.63 AU
  • Perihelion Distance: 0.91 AU
  • Rotation Period: 12.00 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 7335 (1989 JA) 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 1989 JA 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.