Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the Golden Gate Bridge (1.06 km diameter)
- Will pass within 21,384,498 km of Earth in 2155
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
137032 (1998 UO1) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1998 UO1 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.
1998 UO1 orbits the sun every 736 days (2.02 years), coming as close as 0.38 AU and reaching as far as 2.81 AU from the sun. Its orbit is highly elliptical. 1998 UO1 is about 1.1 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the Golden Gate Bridge.
The rotation of 1998 UO1 has been observed. It completes a rotation on its axis every 2.93 hours.
Close Approaches
1998 UO1's orbit is 0.06 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.
1998 UO1 has 5 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Sept. 24, 2155 | 21,384,498 | 25.639 |
| Sept. 26, 2157 | 14,404,616 | 27.313 |
| Sept. 29, 2159 | 11,755,504 | 28.945 |
| Oct. 2, 2161 | 15,195,040 | 30.662 |
| Oct. 5, 2163 | 22,411,549 | 32.476 |
Images and Observations
1998 UO1's orbit is determined by observations dating back to Oct. 20, 1992. It was last officially observed on Dec. 27, 2022. The IAU Minor Planet Center records 1,526 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 1998 UO1:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.596 AU
- Eccentricity: 0.7634
- Inclination: 25.49°
- Longitude of Ascending Node: 358.41°
- Argument of Periapsis: 252.5°
- Mean Anomaly: 174.74°
Physical Characteristics
- Diameter: 1.05500 km
- Magnitude: 16.66
- Albedo: 0.183
Derived Characteristics
- Orbit Period: 736 days (2.02 years)
- Avg. Orbit Speed: 23.59 km/s
- Aphelion Distance: 2.81 AU
- Perihelion Distance: 0.38 AU
- Rotation Period: 2.93 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 137032 (1998 UO1) 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 1998 UO1 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.
