Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to a football field
- Will pass within 1,816,928 km of Earth in 2023
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
367789 (2011 AG5) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2011 AG5 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2011 AG5 orbits the sun every 621 days (1.70 years), coming as close as 0.87 AU and reaching as far as 1.98 AU from the sun. Based on its brightness and the way it reflects light, 2011 AG5 is probably between 0.077 to 0.344 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.
The rotation of 2011 AG5 has been observed. It completes a rotation on its axis every 9.44 hours.
Close Approaches
2011 AG5's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is very close to Earth's orbit.
2011 AG5 has 15 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Feb. 3, 2023 | 1,816,928 | 9.918 |
| June 11, 2028 | 20,080,032 | 12.987 |
| Feb. 4, 2040 | 1,084,308 | 9.797 |
| April 9, 2045 | 21,008,661 | 7.862 |
| June 8, 2050 | 11,314,840 | 10.826 |
| Feb. 11, 2077 | 6,756,545 | 8.295 |
| May 14, 2082 | 15,754,439 | 7.330 |
| Feb. 15, 2109 | 8,503,969 | 8.003 |
| May 26, 2114 | 12,203,833 | 7.816 |
| Jan. 26, 2136 | 20,998,849 | 13.749 |
| March 23, 2141 | 19,900,678 | 7.820 |
| June 9, 2146 | 11,134,862 | 10.802 |
| Feb. 13, 2168 | 6,704,127 | 8.270 |
| May 31, 2173 | 9,982,986 | 8.454 |
| Feb. 22, 2195 | 11,765,178 | 7.598 |
Images and Observations
2011 AG5's orbit is determined by observations dating back to Oct. 3, 2008. It was last officially observed on July 14, 2023. The IAU Minor Planet Center records 444 observations used to determine its orbit.
Accessibility and Exploration
2011 AG5 can be reached with a journey of 346 days. This trajectory would require a delta-v of 10.999 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 231 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2011 AG5.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2011 AG5:References
Search
or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.424 AU
- Eccentricity: 0.3886
- Inclination: 3.69°
- Longitude of Ascending Node: 135.62°
- Argument of Periapsis: 54.01°
- Mean Anomaly: 104.17°
Physical Characteristics
- Diameter: ~0.211 km
- Magnitude: 21.77
Derived Characteristics
- Orbit Period: 621 days (1.70 years)
- Avg. Orbit Speed: 24.95 km/s
- Aphelion Distance: 1.98 AU
- Perihelion Distance: 0.87 AU
- Rotation Period: 9.44 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 367789 (2011 AG5) 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 2011 AG5 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.
