Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 2,176,225 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2023 KJ4 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2023 KJ4 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.

2023 KJ4 orbits the sun every 339 days (0.93 years), coming as close as 0.73 AU and reaching as far as 1.17 AU from the sun. Based on its brightness and the way it reflects light, 2023 KJ4 is probably between 0.011 to 0.024 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2023 KJ4's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.

2023 KJ4 has 8 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 20, 2023 2,176,225 9.330
Nov. 13, 2024 25,229,883 9.804
May 19, 2036 6,038,961 8.849
Nov. 7, 2037 23,578,904 9.864
Oct. 15, 2050 28,306,479 11.962
May 20, 2061 4,950,706 10.249
Nov. 21, 2062 28,069,373 9.841
May 20, 2074 4,780,660 10.218

Images and Observations

2023 KJ4's orbit is determined by observations dating back to May 27, 2023. It was last officially observed on May 31, 2023. The IAU Minor Planet Center records 19 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 2023 KJ4:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9517 AU
  • Eccentricity: 0.2335
  • Inclination: 14.51°
  • Longitude of Ascending Node: 239.65°
  • Argument of Periapsis: 240.21°
  • Mean Anomaly: 217.21°

Physical Characteristics

  • Diameter: ~0.014 km
  • Magnitude: 26.98

Derived Characteristics

  • Orbit Period: 339 days (0.93 years)
  • Avg. Orbit Speed: 30.54 km/s
  • Aphelion Distance: 1.17 AU
  • Perihelion Distance: 0.73 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2023 KJ4 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.