2015 KB57

Very small Aten-class Asteroid

Near-Earth
Space Reference » Aten-class Asteroids » 2015 KB57

Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 21,219,047 km of Earth in 2026
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2015 KB57 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2015 KB57 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.

2015 KB57 orbits the sun every 335 days (0.92 years), coming as close as 0.37 AU and reaching as far as 1.52 AU from the sun. Based on its brightness and the way it reflects light, 2015 KB57 is probably between 0.092 to 0.206 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2015 KB57's orbit is 0.14 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.

2015 KB57 has 12 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
May 8, 2026 21,219,047 21.145
May 9, 2037 23,542,801 23.202
May 8, 2071 24,033,111 19.865
May 9, 2082 20,906,871 21.720
May 10, 2093 25,361,442 23.895
May 9, 2116 29,766,674 18.803
May 9, 2127 22,248,015 20.335
May 10, 2138 21,295,940 22.379
May 12, 2149 27,999,892 24.729
May 9, 2172 27,050,344 19.178
May 10, 2183 20,850,517 20.896
May 11, 2194 22,443,056 23.047

Images and Observations

2015 KB57's orbit is determined by observations dating back to May 20, 2015. It was last officially observed on June 10, 2016. The IAU Minor Planet Center records 32 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 2015 KB57:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9446 AU
  • Eccentricity: 0.6074
  • Inclination: 29.67°
  • Longitude of Ascending Node: 239.61°
  • Argument of Periapsis: 208.82°
  • Mean Anomaly: 110.99°

Physical Characteristics

  • Diameter: ~0.119 km
  • Magnitude: 22.3

Derived Characteristics

  • Orbit Period: 335 days (0.92 years)
  • Avg. Orbit Speed: 30.68 km/s
  • Aphelion Distance: 1.52 AU
  • Perihelion Distance: 0.37 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of 2015 KB57 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 below comparison is an artistic rendering that uses available data on the diameter of 2015 KB57 to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.