Key Facts

  • Categorized as a Apollo-class Asteroid
  • Comparable in size to a football field
  • Will pass within 8,842,996 km of Earth in 2023
  • Classified as a Near Earth Asteroid (NEA)
  • Classified as a Potentially Hazardous Asteroid (PHA)
  • See orbit simulation

Overview

2001 LD is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2001 LD as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.

2001 LD orbits the sun every 619 days (1.69 years), coming as close as 0.89 AU and reaching as far as 1.96 AU from the sun. Based on its brightness and the way it reflects light, 2001 LD is probably between 0.189 to 0.423 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a football field.

Close Approaches

2001 LD's orbit is 0.03 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.

2001 LD has 7 close approaches predicted in the coming decades:

Date Distance from Earth (km) Velocity (km/s)
June 10, 2023 8,842,996 18.952
June 15, 2045 24,247,632 20.874
June 3, 2084 17,023,311 16.904
June 7, 2106 9,275,896 17.562
June 6, 2128 10,605,995 17.429
June 4, 2150 19,696,593 16.729
June 15, 2199 18,989,899 20.183

Images and Observations

2001 LD's orbit is determined by observations dating back to June 2, 2001. It was last officially observed on June 17, 2023. The IAU Minor Planet Center records 240 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 2001 LD:

References

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Orbital Elements

  • Epoch: 2460200.5 JD
  • Semi-major axis: 1.421 AU
  • Eccentricity: 0.376
  • Inclination: 30.15°
  • Longitude of Ascending Node: 79.23°
  • Argument of Periapsis: 114.33°
  • Mean Anomaly: 84.37°

Physical Characteristics

  • Diameter: ~0.244 km
  • Magnitude: 20.74

Derived Characteristics

  • Orbit Period: 619 days (1.69 years)
  • Avg. Orbit Speed: 24.97 km/s
  • Aphelion Distance: 1.96 AU
  • Perihelion Distance: 0.89 AU

Map Comparison

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Orbit Simulation

Sky Map

The position of 2001 LD 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 2001 LD 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.