Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the island of Manhattan (3.21 km diameter)
  • Will pass within 29,348,555 km of Earth in 2024
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation


25330 (1999 KV4) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1999 KV4 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.

1999 KV4 orbits the sun every 698 days (1.91 years), coming as close as 0.97 AU and reaching as far as 2.11 AU from the sun. 1999 KV4 is about 3.2 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the island of Manhattan.

The rotation of 1999 KV4 has been observed. It completes a rotation on its axis every 4.92 hours.

1999 KV4's spectral type None (Tholen) / B (SMASSII) indicates that it is likely to contain hydrogen, nitrogen, ammonia, and iron.

Close Approaches

1999 KV4's orbit is 0.17 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.

1999 KV4 has 5 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
April 4, 2024 29,348,555 8.813
Dec. 15, 2067 26,437,370 9.503
April 6, 2089 28,348,327 10.547
Dec. 15, 2176 26,810,428 10.182
April 7, 2198 27,389,382 9.704

Images and Observations

1999 KV4's orbit is determined by observations dating back to Nov. 16, 1979. It was last officially observed on June 16, 2022. The IAU Minor Planet Center records 1,410 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 1999 KV4:



   or view a random object

Orbital Elements

  • Epoch: 2459800.5 JD
  • Semi-major axis: 1.54 AU
  • Eccentricity: 0.371
  • Inclination: 14.33°
  • Longitude of Ascending Node: 50.54°
  • Argument of Periapsis: 86.1°
  • Mean Anomaly: 76.73°

Physical Characteristics

  • Diameter: 3.21000 km
  • Magnitude: 16.79
  • Albedo: 0.052
  • Spectral type (SMASS): B

Derived Characteristics

  • Orbit Period: 698 days (1.91 years)
  • Avg. Orbit Speed: 24.00 km/s
  • Aphelion Distance: 2.11 AU
  • Perihelion Distance: 0.97 AU
  • Rotation Period: 4.92 hours
  • Approx. Composition: hydrogen, nitrogen, ammonia, and iron.

Map Comparison

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Orbit Simulation

Sky Map

The position of 25330 (1999 KV4) 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 1999 KV4 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.