Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 15,165,410 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

85236 (1993 KH) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1993 KH as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

1993 KH orbits the sun every 501 days (1.37 years), coming as close as 0.85 AU and reaching as far as 1.62 AU from the sun. Based on its brightness and the way it reflects light, 1993 KH is probably between 0.506 to 1.133 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to the Golden Gate Bridge.

Close Approaches

1993 KH's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.

1993 KH has 15 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Nov. 8, 2019 15,165,410 8.926
June 14, 2041 20,029,774 10.130
Nov. 24, 2045 18,538,819 14.066
Nov. 9, 2056 13,117,887 9.163
June 15, 2078 19,942,657 10.639
Nov. 22, 2082 13,554,568 13.210
Nov. 4, 2093 18,879,982 8.566
June 16, 2115 20,384,001 11.118
Nov. 23, 2119 11,259,334 12.800
Nov. 5, 2130 18,952,532 8.566
June 16, 2152 20,432,608 10.116
Nov. 25, 2156 18,925,912 14.125
Nov. 12, 2167 11,132,675 9.413
June 16, 2189 20,385,517 10.373
Nov. 24, 2193 15,397,378 13.513

Images and Observations

1993 KH's orbit is determined by observations dating back to May 24, 1993. It was last officially observed on June 25, 2019. The IAU Minor Planet Center records 488 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 1993 KH:

References

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Orbital Elements

  • Epoch: 2458600.5 JD
  • Semi-major axis: 1.23401130835 AU
  • Eccentricity: 0.31111125492
  • Inclination: 12.8052089303°
  • Longitude of Ascending Node: 54.3967107093°
  • Argument of Periapsis: 293.844120822°
  • Mean Anomaly: 254.121452142°

Physical Characteristics

  • Diameter: ~0.654 km
  • Magnitude: 18.6

Derived Characteristics

  • Orbit Period: 501 days (1.37 years)
  • Avg. Orbit Speed: 26.81 km/s
  • Aphelion Distance: 1.62 AU
  • Perihelion Distance: 0.85 AU

Size Comparison

Orbit Simulation

Sky Map

The position of 85236 (1993 KH) 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.