Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller (0.20 km diameter)
  • Will pass within 19,419,852 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

468468 (2004 KH17) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2004 KH17 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2004 KH17 orbits the sun every 219 days (0.60 years), coming as close as 0.36 AU and reaching as far as 1.07 AU from the sun. 2004 KH17 is about 0.2 kilometers in diameter, making it a small to average asteroid, comparable in size to a school bus or smaller.

Close Approaches

2004 KH17'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.

2004 KH17 has 30 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 31, 2019 19,419,852 12.815
May 29, 2022 21,747,040 12.835
May 27, 2025 24,037,607 12.907
May 24, 2028 26,316,873 13.022
May 23, 2031 28,636,865 13.201
June 9, 2081 25,461,316 18.389
June 10, 2084 20,984,969 17.530
June 11, 2087 16,641,342 16.727
June 11, 2090 12,880,263 16.070
June 11, 2093 9,600,986 15.526
June 10, 2096 7,021,878 15.124
June 11, 2099 5,619,006 14.915
June 12, 2102 5,719,211 14.935
June 11, 2105 7,159,797 15.151
June 11, 2108 9,806,326 15.564
June 12, 2111 13,026,464 16.096
June 12, 2114 16,825,601 16.760
June 11, 2117 20,953,479 17.516
June 10, 2120 25,405,182 18.368
May 22, 2169 29,689,497 13.419
May 25, 2172 27,088,972 13.174
May 28, 2175 24,452,716 12.990
May 30, 2178 21,991,630 12.883
June 1, 2181 19,530,611 12.843
June 3, 2184 17,266,376 12.861
June 5, 2187 15,185,746 12.907
June 6, 2190 13,188,613 12.978
June 7, 2193 11,241,688 13.066
June 7, 2196 9,590,994 13.164
June 9, 2199 8,276,726 13.257

Images and Observations

2004 KH17's orbit is determined by observations dating back to May 29, 2004. It was last officially observed on May 24, 2019. The IAU Minor Planet Center records 213 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 2004 KH17:

References

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Orbital Elements

  • Epoch: 2459000.5 JD
  • Semi-major axis: 0.7121 AU
  • Eccentricity: 0.4983
  • Inclination: 22.12°
  • Longitude of Ascending Node: 79.15°
  • Argument of Periapsis: 340.7°
  • Mean Anomaly: 71.85°

Physical Characteristics

  • Diameter: 0.19700 km
  • Magnitude: 21.9
  • Albedo: 0.072

Derived Characteristics

  • Orbit Period: 219 days (0.60 years)
  • Avg. Orbit Speed: 35.37 km/s
  • Aphelion Distance: 1.07 AU
  • Perihelion Distance: 0.36 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 468468 (2004 KH17) 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 2004 KH17 to create an approximate landscape rendering. The approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.