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Analysis of the Iridium 33-Cosmos 2251 Collision

Analysis of the Iridium 33-Cosmos 2251 Collision. T.S. Kelso. Overview. Introduction Anatomy of a Collision Tracking a Collision Impact on the Space Environment Conclusions. Introduction. What: Collision of Iridium 33 & Cosmos 2251 When: 2009 Feb 10 @ 1656 UTC

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Analysis of the Iridium 33-Cosmos 2251 Collision

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  1. Analysis of the Iridium 33-Cosmos 2251 Collision T.S. Kelso

  2. Overview • Introduction • Anatomy of a Collision • Tracking a Collision • Impact on the Space Environment • Conclusions

  3. Introduction • What: Collision of Iridium 33 & Cosmos 2251 • When: 2009 Feb 10 @ 1656 UTC • Where: 72.505 N, 97.873 E, 788.6 km altitude • Northern Siberia • Results (as of 2009 Aug 25): • 419 pieces of Iridium 33 debris (16 decayed) • 998 pieces of Cosmos 2251 debris (33 decayed)

  4. Anatomy of a Collision

  5. Kevin Fetter Video: Iridium 33 & 28

  6. Tracking a Collision

  7. SOCRATES Min Range

  8. SOCRATES Rank (All)

  9. SOCRATES Rank (Top 200)

  10. Impact on the Space Environment

  11. Debris Characteristics

  12. Lifetime Analysis: Iridium 33

  13. Lifetime Analysis: Cosmos 2251

  14. Lifetime Analysis: Iridium 33

  15. Lifetime Analysis: Cosmos 2251

  16. Conclusions • Collision has significant long-term adverse effects • International community must continue to work to mitigate debris generation • Can mitigate risk by collaboratively sharing SSA • SOCRATES-GEO: 11 operators, 150 satellites • SOCRATES-LEO: 6 operators, 106 satellites • Need best available SSA from SSN • Need full examination of this event to help chart the way ahead

  17. Questions?

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