Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to a football field
- Will pass within 7,811,859 km of Earth in 2027
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
510529 (2012 EY11) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2012 EY11 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2012 EY11 orbits the sun every 450 days (1.23 years), coming as close as 0.97 AU and reaching as far as 1.32 AU from the sun. Based on its brightness and the way it reflects light, 2012 EY11 is probably between 0.084 to 0.376 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.
Close Approaches
2012 EY11'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.
2012 EY11 has 20 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Sept. 19, 2027 | 7,811,859 | 5.094 |
| Jan. 24, 2028 | 23,111,493 | 4.906 |
| Oct. 20, 2043 | 26,637,159 | 5.483 |
| Jan. 5, 2044 | 25,559,718 | 6.053 |
| Sept. 12, 2064 | 9,035,718 | 6.620 |
| Feb. 10, 2065 | 26,874,339 | 5.345 |
| Sept. 14, 2080 | 5,851,032 | 6.105 |
| Feb. 7, 2081 | 25,386,467 | 5.228 |
| Sept. 26, 2107 | 19,546,051 | 4.846 |
| Jan. 13, 2108 | 22,724,531 | 5.266 |
| Sept. 18, 2123 | 4,947,578 | 5.435 |
| Feb. 1, 2124 | 23,702,401 | 5.021 |
| Sept. 17, 2139 | 4,416,516 | 5.666 |
| Feb. 4, 2140 | 24,243,294 | 5.085 |
| Sept. 13, 2155 | 11,149,269 | 6.964 |
| Feb. 16, 2156 | 27,643,091 | 5.433 |
| Sept. 23, 2182 | 15,948,968 | 4.733 |
| Jan. 18, 2183 | 21,806,909 | 5.062 |
| Sept. 18, 2198 | 5,809,518 | 5.305 |
| Jan. 31, 2199 | 23,244,293 | 5.003 |
Images and Observations
2012 EY11's orbit is determined by observations dating back to March 19, 2001. It was last officially observed on April 7, 2023. The IAU Minor Planet Center records 154 observations used to determine its orbit.
Accessibility and Exploration
2012 EY11 can be reached with a journey of 370 days. This trajectory would require a delta-v of 7.881 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 32,406 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2012 EY11.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2012 EY11:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.148 AU
- Eccentricity: 0.1508
- Inclination: 9.02°
- Longitude of Ascending Node: 167.59°
- Argument of Periapsis: 238.88°
- Mean Anomaly: 224.7°
Physical Characteristics
- Diameter: ~0.230 km
- Magnitude: 21.58
Derived Characteristics
- Orbit Period: 450 days (1.23 years)
- Avg. Orbit Speed: 27.75 km/s
- Aphelion Distance: 1.32 AU
- Perihelion Distance: 0.97 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 510529 (2012 EY11) 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 EY11 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.
