Key Facts
- Categorized as a Aten-class Asteroid
- Comparable in size to a school bus or smaller
- Will pass within 4,117,114 km of Earth in 2019
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
2015 KQ18 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2015 KQ18 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 KQ18 orbits the sun every 291 days (0.80 years), coming as close as 0.48 AU and reaching as far as 1.24 AU from the sun. Based on its brightness and the way it reflects light, 2015 KQ18 is probably between 0.022 to 0.050 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
Close Approaches
2015 KQ18's orbit is 0.02 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 KQ18 has 25 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| May 25, 2019 | 4,117,114 | 13.071 |
| May 24, 2023 | 15,946,089 | 15.595 |
| Feb. 24, 2026 | 22,745,042 | 15.826 |
| Feb. 22, 2030 | 14,846,628 | 12.756 |
| Feb. 23, 2034 | 18,018,674 | 10.222 |
| March 5, 2038 | 26,063,277 | 9.239 |
| May 9, 2058 | 26,710,417 | 9.385 |
| May 20, 2062 | 17,273,144 | 9.737 |
| May 25, 2066 | 6,453,058 | 11.376 |
| May 25, 2070 | 4,718,823 | 13.183 |
| May 23, 2074 | 16,547,101 | 15.724 |
| Feb. 23, 2077 | 22,437,854 | 15.766 |
| Feb. 22, 2081 | 14,761,553 | 12.806 |
| Feb. 23, 2085 | 17,621,023 | 10.301 |
| March 4, 2089 | 25,300,164 | 9.247 |
| May 4, 2109 | 29,672,531 | 9.491 |
| May 16, 2113 | 21,972,560 | 9.450 |
| May 24, 2117 | 11,653,505 | 10.479 |
| May 26, 2121 | 3,052,679 | 12.337 |
| May 26, 2125 | 9,296,558 | 14.198 |
| Feb. 27, 2128 | 29,716,444 | 17.660 |
| May 24, 2129 | 21,110,335 | 16.664 |
| Feb. 25, 2132 | 19,114,174 | 14.833 |
| Feb. 24, 2136 | 14,243,514 | 12.102 |
| Feb. 26, 2140 | 18,946,393 | 9.952 |
Images and Observations
2015 KQ18's orbit is determined by observations dating back to May 18, 2015. It was last officially observed on May 25, 2015. The IAU Minor Planet Center records 37 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 KQ18:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 0.8594 AU
- Eccentricity: 0.4371
- Inclination: 5.71°
- Longitude of Ascending Node: 53.9°
- Argument of Periapsis: 326.37°
- Mean Anomaly: 52.79°
Physical Characteristics
- Diameter: ~0.029 km
- Magnitude: 25.38
Derived Characteristics
- Orbit Period: 291 days (0.80 years)
- Avg. Orbit Speed: 32.13 km/s
- Aphelion Distance: 1.24 AU
- Perihelion Distance: 0.48 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 2015 KQ18 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 KQ18 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.
