Key Facts
- Categorized as a Aten-class Asteroid
- Comparable in size to the U.S. Capitol building (0.35 km diameter)
- Will pass within 15,564,432 km of Earth in 2021
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
523664 (2012 OD1) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2012 OD1 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2012 OD1 orbits the sun every 276 days (0.76 years), coming as close as 0.41 AU and reaching as far as 1.25 AU from the sun. 2012 OD1 is about 0.3 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, comparable in size to the U.S. Capitol building.
The rotation of 2012 OD1 has been observed. It completes a rotation on its axis every 12.63 hours.
Close Approaches
2012 OD1's orbit is 0.04 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.
2012 OD1 has 20 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| July 25, 2021 | 15,564,432 | 22.056 |
| July 28, 2024 | 5,717,391 | 23.685 |
| July 31, 2027 | 15,350,412 | 25.669 |
| Aug. 4, 2030 | 29,629,387 | 27.978 |
| July 25, 2061 | 19,416,156 | 21.671 |
| July 27, 2064 | 7,143,291 | 23.197 |
| July 31, 2067 | 11,472,639 | 25.039 |
| Aug. 3, 2070 | 25,199,431 | 27.245 |
| July 26, 2101 | 25,100,121 | 21.161 |
| July 27, 2104 | 11,756,887 | 22.521 |
| July 31, 2107 | 6,984,273 | 24.225 |
| Aug. 3, 2110 | 19,394,428 | 26.307 |
| July 25, 2141 | 29,300,621 | 20.820 |
| July 27, 2144 | 15,503,746 | 22.078 |
| July 30, 2147 | 5,876,455 | 23.737 |
| Aug. 2, 2150 | 15,674,964 | 25.730 |
| July 26, 2184 | 19,203,527 | 21.682 |
| July 29, 2187 | 7,045,338 | 23.254 |
| Aug. 1, 2190 | 11,957,801 | 25.137 |
| Aug. 4, 2193 | 25,663,856 | 27.352 |
Images and Observations
2012 OD1's orbit is determined by observations dating back to July 19, 2012. It was last officially observed on Sept. 10, 2021. The IAU Minor Planet Center records 1,101 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 2012 OD1:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 0.8287 AU
- Eccentricity: 0.5027
- Inclination: 42.27°
- Longitude of Ascending Node: 303.73°
- Argument of Periapsis: 224.37°
- Mean Anomaly: 28.57°
Physical Characteristics
- Diameter: 0.34600 km
- Magnitude: 18.59
- Albedo: 0.536
Derived Characteristics
- Orbit Period: 276 days (0.76 years)
- Avg. Orbit Speed: 32.66 km/s
- Aphelion Distance: 1.25 AU
- Perihelion Distance: 0.41 AU
- Rotation Period: 12.63 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 523664 (2012 OD1) 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 2012 OD1 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.
