Shiyimeng

28530 Shiyimeng (2000 DR71)

Space Reference » Main-belt Asteroids » Shiyimeng

Key Facts

Overview

Shiyimeng is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Shiyimeng as potentially hazardous because its orbit does not bring it close to Earth.

Shiyimeng orbits the sun every 1,520 days (4.16 years), coming as close as 2.22 AU and reaching as far as 2.97 AU from the sun. Shiyimeng is about 4.4 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the island of Manhattan.

No Close Approaches

Shiyimeng's orbit is 1.21 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.

Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.

Images and Observations

Shiyimeng's orbit is determined by observations dating back to Sept. 14, 1993. It was last officially observed on Nov. 21, 2022. The IAU Minor Planet Center records 1,038 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 Shiyimeng:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 2.591 AU
  • Eccentricity: 0.1451
  • Inclination: 0.28°
  • Longitude of Ascending Node: 212.96°
  • Argument of Periapsis: 5.16°
  • Mean Anomaly: 194.33°

Physical Characteristics

  • Diameter: 4.35100 km
  • Magnitude: 15.84
  • Albedo: 0.059

Derived Characteristics

  • Orbit Period: 1,520 days (4.16 years)
  • Avg. Orbit Speed: 18.54 km/s
  • Aphelion Distance: 2.97 AU
  • Perihelion Distance: 2.22 AU

Map Comparison

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Orbit Simulation

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Sky Map

The position of Shiyimeng 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 Shiyimeng 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.