Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the Golden Gate Bridge (1.12 km diameter)
- Will pass within 29,744,833 km of Earth in 2023
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
154029 (2002 CY46) is a mid-sized asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2002 CY46 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.
2002 CY46 orbits the sun every 949 days (2.60 years), coming as close as 1.02 AU and reaching as far as 2.76 AU from the sun. 2002 CY46 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 2002 CY46 has been observed. It completes a rotation on its axis every 2.55 hours.
Close Approaches
2002 CY46's orbit is 0.09 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.
2002 CY46 has 3 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Sept. 1, 2023 | 29,744,833 | 23.855 |
| Sept. 13, 2184 | 26,536,869 | 26.442 |
| Sept. 11, 2197 | 21,768,653 | 25.955 |
Images and Observations
2002 CY46's orbit is determined by observations dating back to Feb. 11, 2002. It was last officially observed on May 8, 2023. The IAU Minor Planet Center records 598 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 2002 CY46:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.89 AU
- Eccentricity: 0.4623
- Inclination: 44.19°
- Longitude of Ascending Node: 346.16°
- Argument of Periapsis: 319.43°
- Mean Anomaly: 19.14°
Physical Characteristics
- Diameter: 1.11900 km
- Magnitude: 16.56
- Albedo: 0.098
Derived Characteristics
- Orbit Period: 949 days (2.60 years)
- Avg. Orbit Speed: 21.67 km/s
- Aphelion Distance: 2.76 AU
- Perihelion Distance: 1.02 AU
- Rotation Period: 2.55 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 154029 (2002 CY46) 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 2002 CY46 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.
