Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to the Golden Gate Bridge
- Will pass within 12,342,745 km of Earth in 2049
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
2003 WG is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2003 WG as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2003 WG orbits the sun every 1,390 days (3.81 years), coming as close as 0.53 AU and reaching as far as 4.35 AU from the sun. Its orbit is highly elliptical. Based on its brightness and the way it reflects light, 2003 WG is probably between 0.377 to 0.843 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.
Close Approaches
2003 WG'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.
2003 WG has 7 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| April 28, 2049 | 12,342,745 | 28.120 |
| Nov. 3, 2064 | 5,594,694 | 27.139 |
| April 18, 2114 | 29,045,246 | 33.006 |
| April 24, 2133 | 12,456,737 | 29.719 |
| April 24, 2152 | 10,525,877 | 29.279 |
| May 8, 2171 | 26,529,012 | 23.447 |
| Nov. 13, 2186 | 29,502,998 | 33.169 |
Images and Observations
2003 WG's orbit is determined by observations dating back to Nov. 18, 2003. It was last officially observed on Dec. 26, 2022. The IAU Minor Planet Center records 199 observations used to determine its orbit.
Accessibility and Exploration
This asteroid is not considered a viable target for human exploration by the NHATS study.Similar Objects
These objects have orbits that share similar characteristics to the orbit of 2003 WG:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 2.438 AU
- Eccentricity: 0.7841
- Inclination: 27.14°
- Longitude of Ascending Node: 46.63°
- Argument of Periapsis: 262.01°
- Mean Anomaly: 86.12°
Physical Characteristics
- Diameter: ~0.487 km
- Magnitude: 19.24
Derived Characteristics
- Orbit Period: 1,390 days (3.81 years)
- Avg. Orbit Speed: 19.08 km/s
- Aphelion Distance: 4.35 AU
- Perihelion Distance: 0.53 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 2003 WG 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 2003 WG 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.
