Key Facts
- Categorized as a Amor-class Asteroid
- Comparable in size to the U.S. Capitol building
- Will pass within 15,619,890 km of Earth in 2046
- Classified as a Near Earth Asteroid (NEA)
- Not a Potentially Hazardous Object
- See orbit simulation
Overview
36017 (1999 ND43) is a very small asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified 1999 ND43 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.
1999 ND43 orbits the sun every 687 days (1.88 years), coming as close as 1.04 AU and reaching as far as 2.00 AU from the sun. Based on its brightness and the way it reflects light, 1999 ND43 is probably between 0.367 to 0.820 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.
The rotation of 1999 ND43 has been observed. It completes a rotation on its axis every 5.79 hours.
1999 ND43's spectral type None (Tholen) / Sl (SMASSII) indicates that it is likely to contain and .
Close Approaches
1999 ND43's orbit is 0.08 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.
1999 ND43 has 7 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Sept. 18, 2046 | 15,619,890 | 6.385 |
| Oct. 23, 2061 | 19,320,961 | 5.085 |
| Sept. 15, 2093 | 20,398,785 | 7.509 |
| Oct. 18, 2108 | 16,910,067 | 4.473 |
| Sept. 18, 2140 | 17,631,687 | 6.837 |
| Oct. 29, 2155 | 20,887,121 | 5.490 |
| Sept. 23, 2187 | 14,056,240 | 5.848 |
Images and Observations
1999 ND43's orbit is determined by observations dating back to July 14, 1999. It was last officially observed on May 17, 2023. The IAU Minor Planet Center records 965 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 1999 ND43:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.523 AU
- Eccentricity: 0.3143
- Inclination: 5.55°
- Longitude of Ascending Node: 332.07°
- Argument of Periapsis: 52.13°
- Mean Anomaly: 261.0°
Physical Characteristics
- Diameter: ~0.474 km
- Magnitude: 19.3
- Spectral type (SMASS): Sl
Derived Characteristics
- Orbit Period: 687 days (1.88 years)
- Avg. Orbit Speed: 24.12 km/s
- Aphelion Distance: 2.00 AU
- Perihelion Distance: 1.04 AU
- Rotation Period: 5.79 hours
- Approx. Composition: and .
Map Comparison
Orbit Simulation
Sky Map
The position of 36017 (1999 ND43) 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 1999 ND43 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.
