Key Facts
- Categorized as a Aten-class Asteroid
- Comparable in size to a football field
- Will pass within 9,664,493 km of Earth in 2033
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
437841 (1998 HD14) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 1998 HD14 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
1998 HD14 orbits the sun every 345 days (0.94 years), coming as close as 0.66 AU and reaching as far as 1.26 AU from the sun. Based on its brightness and the way it reflects light, 1998 HD14 is probably between 0.110 to 0.491 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to a football field.
Close Approaches
1998 HD14'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.
1998 HD14 has 24 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| April 5, 2033 | 9,664,493 | 8.223 |
| Aug. 21, 2036 | 18,882,725 | 12.456 |
| April 6, 2050 | 7,161,053 | 8.790 |
| Aug. 20, 2053 | 20,373,444 | 12.780 |
| April 13, 2066 | 23,508,560 | 13.995 |
| April 23, 2067 | 29,137,900 | 6.196 |
| Aug. 29, 2069 | 13,467,019 | 8.209 |
| April 6, 2083 | 10,415,246 | 8.060 |
| Sept. 19, 2085 | 28,917,248 | 6.168 |
| Aug. 18, 2086 | 28,033,988 | 14.450 |
| April 9, 2099 | 8,967,419 | 10.976 |
| Aug. 25, 2102 | 12,923,550 | 10.845 |
| April 11, 2116 | 23,780,343 | 6.061 |
| Sept. 1, 2118 | 17,184,648 | 7.255 |
| April 7, 2132 | 7,772,089 | 8.677 |
| Aug. 20, 2135 | 25,290,624 | 13.894 |
| April 10, 2148 | 10,841,918 | 11.360 |
| Aug. 25, 2151 | 14,165,346 | 11.287 |
| April 12, 2164 | 16,967,298 | 12.654 |
| Aug. 28, 2167 | 10,714,143 | 9.640 |
| April 9, 2181 | 22,035,408 | 6.166 |
| Sept. 2, 2183 | 17,338,953 | 7.199 |
| April 6, 2197 | 12,563,938 | 7.679 |
| Sept. 15, 2199 | 27,307,057 | 5.883 |
Images and Observations
1998 HD14's orbit is determined by observations dating back to April 25, 1998. It was last officially observed on June 29, 2019. The IAU Minor Planet Center records 210 observations used to determine its orbit.
Accessibility and Exploration
1998 HD14 can be reached with a journey of 362 days. This trajectory would require a delta-v of 11.661 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 321 potential trajectories and launch windows to this asteroid.
See more at the NHATS Mission Trajectories table for 1998 HD14.
Similar Objects
These objects have orbits that share similar characteristics to the orbit of 1998 HD14:References
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or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 0.9632 AU
- Eccentricity: 0.3126
- Inclination: 7.81°
- Longitude of Ascending Node: 183.76°
- Argument of Periapsis: 260.9°
- Mean Anomaly: 37.39°
Physical Characteristics
- Diameter: ~0.301 km
- Magnitude: 21.0
Derived Characteristics
- Orbit Period: 345 days (0.94 years)
- Avg. Orbit Speed: 30.37 km/s
- Aphelion Distance: 1.26 AU
- Perihelion Distance: 0.66 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 437841 (1998 HD14) 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 1998 HD14 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.
