Key Facts
- Categorized as a Apollo-class Asteroid
- Comparable in size to a football field (0.30 km diameter)
- Will pass within 27,611,012 km of Earth in 2022
- Classified as a Near Earth Asteroid (NEA)
- Classified as a Potentially Hazardous Asteroid (PHA)
- See orbit simulation
Overview
152671 (1998 HL3) is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 1998 HL3 as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
1998 HL3 orbits the sun every 438 days (1.20 years), coming as close as 0.72 AU and reaching as far as 1.54 AU from the sun. 1998 HL3 is about 0.3 kilometers in diameter, making it a small to average asteroid, comparable in size to a football field.
Close Approaches
1998 HL3's orbit is 0.05 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 HL3 has 10 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| July 2, 2022 | 27,611,012 | 6.991 |
| June 28, 2028 | 26,232,421 | 6.862 |
| July 1, 2034 | 27,294,882 | 6.991 |
| July 3, 2040 | 28,183,058 | 7.098 |
| Nov. 23, 2130 | 26,587,285 | 6.935 |
| Dec. 3, 2136 | 22,393,500 | 7.015 |
| Dec. 5, 2142 | 21,840,981 | 7.094 |
| Dec. 3, 2148 | 22,737,175 | 6.939 |
| Nov. 26, 2154 | 25,747,021 | 6.827 |
| Nov. 13, 2160 | 29,879,859 | 7.605 |
Images and Observations
1998 HL3's orbit is determined by observations dating back to April 21, 1998. It was last officially observed on March 26, 2023. The IAU Minor Planet Center records 503 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 1998 HL3:References
Search
or view a random objectOrbital Elements
- Epoch: 2460200.5 JD
- Semi-major axis: 1.129 AU
- Eccentricity: 0.366
- Inclination: 2.68°
- Longitude of Ascending Node: 163.64°
- Argument of Periapsis: 188.15°
- Mean Anomaly: 317.63°
Physical Characteristics
- Diameter: 0.29800 km
- Magnitude: 20.24
- Albedo: 0.200
Derived Characteristics
- Orbit Period: 438 days (1.20 years)
- Avg. Orbit Speed: 28.04 km/s
- Aphelion Distance: 1.54 AU
- Perihelion Distance: 0.72 AU
Map Comparison
Orbit Simulation
Sky Map
The position of 152671 (1998 HL3) 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 HL3 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.
