Key Facts
- Categorized as a Aten-class Asteroid
- Comparable in size to the U.S. Capitol building
- Will pass within 21,784,937 km of Earth in 2019
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
453563 (2010 BB) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2010 BB as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2010 BB orbits the sun every 271 days (0.74 years), coming as close as 0.59 AU and reaching as far as 1.05 AU from the sun. Based on its brightness and the way it reflects light, 2010 BB is probably between 0.156 to 0.697 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 BB's orbit is 0.01 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.
2010 BB has 25 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Feb. 17, 2019 | 21,784,937 | 7.671 |
| Dec. 27, 2035 | 29,475,914 | 13.783 |
| Dec. 27, 2038 | 4,686,335 | 8.889 |
| Jan. 13, 2042 | 12,581,194 | 7.082 |
| Feb. 14, 2045 | 21,339,757 | 7.509 |
| Dec. 26, 2064 | 23,562,815 | 12.551 |
| Dec. 28, 2067 | 2,358,812 | 8.457 |
| Jan. 10, 2071 | 11,108,745 | 7.121 |
| Feb. 3, 2074 | 19,219,699 | 7.159 |
| Feb. 24, 2077 | 24,940,284 | 8.734 |
| Dec. 27, 2099 | 28,119,923 | 13.493 |
| Dec. 27, 2102 | 10,771,505 | 10.011 |
| Jan. 1, 2106 | 3,909,548 | 7.707 |
| Jan. 23, 2109 | 16,208,291 | 7.073 |
| Feb. 21, 2112 | 22,842,493 | 7.902 |
| Dec. 27, 2134 | 16,703,208 | 11.187 |
| Dec. 30, 2137 | 1,999,456 | 8.000 |
| Jan. 27, 2141 | 17,469,411 | 7.105 |
| Feb. 27, 2144 | 26,511,321 | 9.377 |
| Dec. 26, 2160 | 19,667,193 | 11.779 |
| Jan. 1, 2164 | 4,160,995 | 7.684 |
| Feb. 7, 2167 | 19,782,758 | 7.225 |
| Dec. 27, 2183 | 20,248,453 | 11.898 |
| Jan. 3, 2187 | 6,194,462 | 7.453 |
| Feb. 14, 2190 | 21,260,911 | 7.448 |
Images and Observations
2010 BB's orbit is determined by observations dating back to Jan. 16, 2010. It was last officially observed on Jan. 10, 2022. The IAU Minor Planet Center records 293 observations used to determine its orbit.
Accessibility and Exploration
2010 BB can be reached with a journey of 362 days. This trajectory would require a delta-v of 11.73 km/s. To put this into perspective, the delta-v to launch a rocket to Low-Earth Orbit is 9.7 km/s. There are 7 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2010 BB.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2010 BB:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 0.8201 AU
- Eccentricity: 0.2775
- Inclination: 10.02°
- Longitude of Ascending Node: 279.7°
- Argument of Periapsis: 29.01°
- Mean Anomaly: 271.42°
Physical Characteristics
- Diameter: ~0.427 km
- Magnitude: 20.24
Derived Characteristics
- Orbit Period: 271 days (0.74 years)
- Avg. Orbit Speed: 32.92 km/s
- Aphelion Distance: 1.05 AU
- Perihelion Distance: 0.59 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 453563 (2010 BB) 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 BB 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.
