Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 27,258,283 km of Earth in 2019
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2023 HU3 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2023 HU3 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.

2023 HU3 orbits the sun every 363 days (0.99 years), coming as close as 0.57 AU and reaching as far as 1.42 AU from the sun. Based on its brightness and the way it reflects light, 2023 HU3 is probably between 0.026 to 0.058 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2023 HU3's orbit is 0.01 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.

2023 HU3 has 10 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
April 26, 2019 27,258,283 23.751
April 24, 2020 20,220,133 22.661
April 22, 2021 13,376,440 21.626
April 21, 2022 6,880,417 20.669
April 20, 2023 2,204,307 19.860
April 18, 2024 6,103,683 19.108
April 18, 2025 12,346,185 18.364
April 17, 2026 18,892,380 17.706
April 17, 2027 25,549,483 17.112
April 17, 2152 29,366,239 16.820

Images and Observations

2023 HU3's orbit is determined by observations dating back to April 22, 2023. It was last officially observed on April 27, 2023. The IAU Minor Planet Center records 53 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 2023 HU3:

References

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Orbital Elements

  • Epoch: 2460058.5 JD
  • Semi-major axis: 0.9955 AU
  • Eccentricity: 0.4291
  • Inclination: 31.9°
  • Longitude of Ascending Node: 210.83°
  • Argument of Periapsis: 241.15°
  • Mean Anomaly: 71.36°

Physical Characteristics

  • Diameter: ~0.033 km
  • Magnitude: 25.06

Derived Characteristics

  • Orbit Period: 363 days (0.99 years)
  • Avg. Orbit Speed: 29.84 km/s
  • Aphelion Distance: 1.42 AU
  • Perihelion Distance: 0.57 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2023 HU3 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 2023 HU3 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.