Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to the Golden Gate Bridge
  • Will pass within 24,038,542 km of Earth in 2020
  • Classified as a Near Earth Asteroid (NEA)
  • Not a Potentially Hazardous Object
  • See orbit simulation

Overview

275714 (2000 YH4) is a small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2000 YH4 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.

2000 YH4 orbits the sun every 664 days (1.82 years), coming as close as 0.81 AU and reaching as far as 2.17 AU from the sun. Based on its brightness and the way it reflects light, 2000 YH4 is probably between 0.458 to 1.023 kilometers in diameter, making it larger than ~97% of asteroids but small compared to large asteroids, very roughly comparable in size to the Golden Gate Bridge.

The rotation of 2000 YH4 has been observed. It completes a rotation on its axis every 4.44 hours.

Close Approaches

2000 YH4's orbit is 0.09 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.

2000 YH4 has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
Dec. 6, 2020 24,038,542 18.434
Dec. 7, 2040 24,433,413 18.584
Dec. 8, 2060 27,171,357 19.172
June 24, 2102 26,993,467 19.179
June 25, 2122 23,484,157 18.496
June 25, 2142 23,372,197 18.429
June 24, 2162 25,550,986 18.848

Images and Observations

2000 YH4's orbit is determined by observations dating back to Dec. 19, 2000. It was last officially observed on Feb. 9, 2023. The IAU Minor Planet Center records 401 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 2000 YH4:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.49 AU
  • Eccentricity: 0.4586
  • Inclination: 17.97°
  • Longitude of Ascending Node: 85.55°
  • Argument of Periapsis: 269.52°
  • Mean Anomaly: 216.0°

Physical Characteristics

  • Diameter: ~0.591 km
  • Magnitude: 18.82

Derived Characteristics

  • Orbit Period: 664 days (1.82 years)
  • Avg. Orbit Speed: 24.41 km/s
  • Aphelion Distance: 2.17 AU
  • Perihelion Distance: 0.81 AU
  • Rotation Period: 4.44 hours

Map Comparison

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Orbit Simulation

Sky Map

The position of 275714 (2000 YH4) 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 above comparison is an artistic rendering that uses available data on the diameter of 2000 YH4 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.