Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to a football field
- Will pass within 25,896,537 km of Earth in 2034
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
1994 CJ1 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1994 CJ1 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
1994 CJ1 orbits the sun every 665 days (1.82 years), coming as close as 1.01 AU and reaching as far as 1.98 AU from the sun. Based on its brightness and the way it reflects light, 1994 CJ1 is probably between 0.086 to 0.383 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.
The rotation of 1994 CJ1 has been observed. It completes a rotation on its axis every 30.00 hours.
Close Approaches
1994 CJ1'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.
1994 CJ1 has 9 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| July 7, 2034 | 25,896,537 | 10.362 |
| April 3, 2045 | 28,420,267 | 11.058 |
| April 12, 2065 | 13,995,909 | 8.008 |
| April 9, 2085 | 19,240,119 | 9.151 |
| July 5, 2114 | 20,516,227 | 9.244 |
| July 1, 2134 | 14,043,002 | 7.771 |
| July 9, 2154 | 25,789,854 | 10.375 |
| April 5, 2165 | 29,053,294 | 11.193 |
| April 13, 2185 | 15,256,067 | 8.293 |
Images and Observations
1994 CJ1's orbit is determined by observations dating back to Feb. 10, 1994. It was last officially observed on Oct. 10, 2016. The IAU Minor Planet Center records 180 observations used to determine its orbit.
Accessibility and Exploration
1994 CJ1 can be reached with a journey of 354 days. This trajectory would require a delta-v of 11.896 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 14 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 1994 CJ1.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 1994 CJ1:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.491 AU
- Eccentricity: 0.3256
- Inclination: 2.31°
- Longitude of Ascending Node: 172.03°
- Argument of Periapsis: 65.27°
- Mean Anomaly: 39.34°
Physical Characteristics
- Diameter: ~0.235 km
- Magnitude: 21.54
Derived Characteristics
- Orbit Period: 665 days (1.82 years)
- Avg. Orbit Speed: 24.39 km/s
- Aphelion Distance: 1.98 AU
- Perihelion Distance: 1.01 AU
- Rotation Period: 30.00 hours
Map Comparison
Orbit Simulation
Sky Map
The position of 1994 CJ1 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 1994 CJ1 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.
