Risks in Space from Orbiting Debris

@article{Liou2006RisksIS,
  title={Risks in Space from Orbiting Debris},
  author={J.-c. Liou and Nicholas L Johnson},
  journal={Science},
  year={2006},
  volume={311},
  pages={340 - 341}
}
340 C R E D IT : (T O P ) N A S A S ince the launch of Sputnik I, space activities have created an orbital debris environment that poses increasing impact risks to existing space systems, including human space flight and robotic missions (1, 2). Currently, more than 9000 Earth-orbiting man-made objects (including many breakup fragments), with a combined mass exceeding 5 million kg, are tracked by the U.S. Space Surveillance Network and maintained in the U.S. satellite catalog (3–5). Three… 

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References

SHOWING 1-10 OF 11 REFERENCES

Collisional evolution of the Earth's orbital debris cloud

We have developed a numerical algorithm to model the future collisional evolution of the low-orbiting Earth debris population, accounting for both the wide spectrum of masses (or sizes) of the

Critical number of spacecraft in low Earth orbit: using satellite fragmentation data to evaluate the stability of the orbital debris environment

Previous studies have concluded that fragments from random collisions in low Earth orbit will cause the orbital debris population to increase despite efforts to minimize the accumulation of debris.

History of on-orbit satellite fragmentations

The causes of on-orbit fragmentations are varied and may be intentional or accidental. The cause of many fragmentations remains unknown. While a few cases are currently under investigation as

The critical density theory in LEO as analyzed by EVOLVE 4.0

The critical density theory is revisited with NASA’s long-term debris environment model, EVOLVE 4.0. Previous studies were based on incomplete data and simplifying assumptions. Recent data of