Key Facts
- Categorized as a Aten-class Asteroid
- Comparable in size to a basketball court
- Will pass within 10,898,487 km of Earth in 2020
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
2007 SG11 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2007 SG11 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.
2007 SG11 orbits the sun every 279 days (0.76 years), coming as close as 0.63 AU and reaching as far as 1.04 AU from the sun. Based on its brightness and the way it reflects light, 2007 SG11 is probably between 0.053 to 0.235 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a basketball court.
Close Approaches
2007 SG11's orbit is 0.03 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.
2007 SG11 has 13 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Oct. 24, 2020 | 10,898,487 | 7.582 |
| Aug. 29, 2023 | 14,737,256 | 7.232 |
| Oct. 22, 2049 | 6,872,179 | 6.707 |
| Aug. 27, 2052 | 17,319,773 | 7.975 |
| Sept. 27, 2065 | 6,816,515 | 5.502 |
| Oct. 24, 2078 | 10,945,878 | 7.571 |
| Aug. 25, 2097 | 28,931,012 | 10.804 |
| Oct. 26, 2107 | 13,072,558 | 8.007 |
| Oct. 23, 2136 | 7,730,638 | 6.846 |
| Aug. 28, 2139 | 16,885,525 | 7.906 |
| Oct. 26, 2149 | 28,709,461 | 11.394 |
| Oct. 26, 2194 | 14,673,960 | 8.316 |
| Sept. 3, 2197 | 11,269,827 | 6.384 |
Images and Observations
2007 SG11's orbit is determined by observations dating back to Sept. 24, 2007. It was last officially observed on Oct. 13, 2007. The IAU Minor Planet Center records 188 observations used to determine its orbit.
Accessibility and Exploration
2007 SG11 can be reached with a journey of 186 days. This trajectory would require a delta-v of 10.289 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 2,278 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2007 SG11.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2007 SG11:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 0.835 AU
- Eccentricity: 0.2489
- Inclination: 6.88°
- Longitude of Ascending Node: 193.43°
- Argument of Periapsis: 345.94°
- Mean Anomaly: 155.86°
Physical Characteristics
- Diameter: ~0.144 km
- Magnitude: 22.6
Derived Characteristics
- Orbit Period: 279 days (0.76 years)
- Avg. Orbit Speed: 32.56 km/s
- Aphelion Distance: 1.04 AU
- Perihelion Distance: 0.63 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 2007 SG11 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 2007 SG11 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.
