Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the U.S. Capitol building
- Will pass within 26,650,133 km of Earth in 2049
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
2010 RA147 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2010 RA147 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2010 RA147 orbits the sun every 1,160 days (3.18 years), coming as close as 0.75 AU and reaching as far as 3.57 AU from the sun. Based on its brightness and the way it reflects light, 2010 RA147 is probably between 0.344 to 0.769 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.
Close Approaches
2010 RA147's orbit is 0.01 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.
2010 RA147 has 5 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| March 10, 2049 | 26,650,133 | 12.868 |
| March 4, 2068 | 28,521,958 | 12.836 |
| March 30, 2087 | 9,370,648 | 14.866 |
| March 12, 2106 | 25,126,385 | 12.756 |
| March 12, 2125 | 24,836,631 | 12.727 |
Images and Observations
2010 RA147's orbit is determined by observations dating back to Sept. 10, 2010. It was last officially observed on May 4, 2014. The IAU Minor Planet Center records 143 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 2010 RA147:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 2.16 AU
- Eccentricity: 0.654
- Inclination: 5.82°
- Longitude of Ascending Node: 8.24°
- Argument of Periapsis: 116.75°
- Mean Anomaly: 356.93°
Physical Characteristics
- Diameter: ~0.444 km
- Magnitude: 19.44
Derived Characteristics
- Orbit Period: 1,160 days (3.18 years)
- Avg. Orbit Speed: 20.26 km/s
- Aphelion Distance: 3.57 AU
- Perihelion Distance: 0.75 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 2010 RA147 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 2010 RA147 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.
