Key Facts

  • Categorized as a Aten-class Asteroid
  • Comparable in size to a school bus or smaller
  • Will pass within 2,889,253 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

2020 YW3 is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2020 YW3 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.

2020 YW3 orbits the sun every 345 days (0.94 years), coming as close as 0.57 AU and reaching as far as 1.35 AU from the sun. Based on its brightness and the way it reflects light, 2020 YW3 is probably between 0.019 to 0.042 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.

Close Approaches

2020 YW3's orbit is 0.02 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.

2020 YW3 has 11 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 14, 2020 2,889,253 12.947
April 20, 2025 12,682,824 11.325
Dec. 14, 2037 4,865,755 12.156
April 18, 2042 9,953,498 12.927
Dec. 20, 2053 23,634,965 17.685
April 18, 2058 26,383,731 8.446
April 12, 2059 28,994,953 18.356
Dec. 14, 2070 7,222,094 11.628
April 17, 2075 11,885,474 14.158
Dec. 18, 2120 15,811,117 16.086
April 14, 2177 25,247,717 17.557

Images and Observations

2020 YW3's orbit is determined by observations dating back to Dec. 22, 2020. It was last officially observed on Jan. 3, 2021. The IAU Minor Planet Center records 21 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 2020 YW3:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 0.9624 AU
  • Eccentricity: 0.4056
  • Inclination: 5.55°
  • Longitude of Ascending Node: 251.15°
  • Argument of Periapsis: 75.2°
  • Mean Anomaly: 36.09°

Physical Characteristics

  • Diameter: ~0.025 km
  • Magnitude: 25.73

Derived Characteristics

  • Orbit Period: 345 days (0.94 years)
  • Avg. Orbit Speed: 30.35 km/s
  • Aphelion Distance: 1.35 AU
  • Perihelion Distance: 0.57 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2020 YW3 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.