Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to a basketball court
- Will pass within 3,858,939 km of Earth in 2024
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
2011 MW1 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2011 MW1 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.
2011 MW1 orbits the sun every 396 days (1.08 years), coming as close as 0.77 AU and reaching as far as 1.35 AU from the sun. Based on its brightness and the way it reflects light, 2011 MW1 is probably between 0.059 to 0.262 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a basketball court.
Close Approaches
2011 MW1'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.
2011 MW1 has 24 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| July 25, 2024 | 3,858,939 | 8.041 |
| Feb. 11, 2027 | 28,221,584 | 13.757 |
| July 29, 2037 | 13,370,798 | 5.726 |
| July 6, 2050 | 29,366,386 | 5.044 |
| Sept. 10, 2050 | 27,686,213 | 6.075 |
| Jan. 5, 2052 | 21,584,637 | 5.429 |
| Jan. 30, 2065 | 5,908,209 | 7.523 |
| July 20, 2075 | 19,009,713 | 11.773 |
| Feb. 3, 2078 | 6,972,050 | 9.139 |
| July 24, 2088 | 5,777,711 | 8.994 |
| Feb. 9, 2091 | 20,359,151 | 12.105 |
| July 25, 2101 | 5,622,455 | 8.951 |
| Feb. 10, 2104 | 17,745,981 | 11.563 |
| July 23, 2114 | 14,888,725 | 10.965 |
| Feb. 5, 2117 | 7,961,163 | 9.391 |
| July 20, 2127 | 24,671,068 | 12.884 |
| Feb. 2, 2130 | 5,939,441 | 7.565 |
| Jan. 18, 2143 | 18,594,564 | 5.060 |
| July 31, 2154 | 17,706,888 | 4.891 |
| July 26, 2167 | 5,638,483 | 8.905 |
| Feb. 9, 2170 | 14,536,962 | 10.856 |
| Jan. 27, 2183 | 15,224,909 | 5.399 |
| July 29, 2194 | 6,552,807 | 7.160 |
| Feb. 11, 2197 | 22,577,184 | 12.526 |
Images and Observations
2011 MW1's orbit is determined by observations dating back to June 25, 2011. It was last officially observed on Feb. 4, 2014. The IAU Minor Planet Center records 90 observations used to determine its orbit.
Accessibility and Exploration
2011 MW1 can be reached with a journey of 386 days. This trajectory would require a delta-v of 9.027 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 36,288 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 2011 MW1.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2011 MW1:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.056 AU
- Eccentricity: 0.2752
- Inclination: 3.26°
- Longitude of Ascending Node: 277.1°
- Argument of Periapsis: 124.54°
- Mean Anomaly: 4.94°
Physical Characteristics
- Diameter: ~0.161 km
- Magnitude: 22.36
Derived Characteristics
- Orbit Period: 396 days (1.08 years)
- Avg. Orbit Speed: 29.01 km/s
- Aphelion Distance: 1.35 AU
- Perihelion Distance: 0.77 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 2011 MW1 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 MW1 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.
