Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to a school bus or smaller
- Will pass within 71,356 km of Earth in 2019
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
2019 OK is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 OK 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.
2019 OK orbits the sun every 932 days (2.55 years), coming as close as 0.45 AU and reaching as far as 3.28 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2019 OK is probably between 0.058 to 0.130 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
Close Approaches
2019 OK'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.
2019 OK has 10 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| July 25, 2019 | 71,356 | 24.535 |
| Feb. 16, 2035 | 15,791,200 | 21.148 |
| July 16, 2042 | 26,931,852 | 29.641 |
| March 1, 2086 | 23,034,030 | 28.882 |
| July 28, 2093 | 7,915,386 | 22.713 |
| Feb. 26, 2109 | 9,955,416 | 26.128 |
| July 28, 2116 | 5,222,284 | 23.289 |
| Feb. 17, 2173 | 18,729,189 | 20.616 |
| July 21, 2180 | 17,935,751 | 27.801 |
| Feb. 24, 2196 | 4,108,703 | 23.992 |
Images and Observations
2019 OK's orbit is determined by observations dating back to Feb. 21, 2017. It was last officially observed on July 25, 2019. The IAU Minor Planet Center records 53 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 2019 OK:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.867 AU
- Eccentricity: 0.7573
- Inclination: 2.09°
- Longitude of Ascending Node: 301.98°
- Argument of Periapsis: 106.15°
- Mean Anomaly: 205.47°
Physical Characteristics
- Diameter: ~0.075 km
- Magnitude: 23.3
Derived Characteristics
- Orbit Period: 932 days (2.55 years)
- Avg. Orbit Speed: 21.79 km/s
- Aphelion Distance: 3.28 AU
- Perihelion Distance: 0.45 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 2019 OK 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 2019 OK 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.
