Space Debris & Collision Risk: Threats in Low Earth Orbit (LEO) is a key topic under Science And Technology for UPSC Civil Services Examination. Key points include: Increased LEO congestion poses a significant collision risk, threatening space infrastructure.. Projected damages of USD 556 million and a 3.13% collision probability (2024-29) highlight the financial stakes.. A 17% increase in close encounters per satellite in the past year indicates rapidly worsening orbital density.. Understanding this topic is essential for both UPSC Prelims and Mains preparation.
Space Debris & Collision Risk: Threats in Low Earth Orbit (LEO) is a Medium-level topic in UPSC Science And Technology. It is tested in both Prelims (factual MCQs) and Mains (analytical answer writing). Previous year UPSC questions have frequently covered aspects of Space Debris & Collision Risk: Threats in Low Earth Orbit (LEO), making it essential for comprehensive IAS preparation.
To prepare Space Debris & Collision Risk: Threats in Low Earth Orbit (LEO) for UPSC: (1) Study the comprehensive notes covering all key concepts on Vaidra. (2) Practice previous year questions on this topic. (3) Connect it with current affairs using daily updates. (4) Revise using key takeaways and mind maps available for Science And Technology. (5) Write practice answers linking Space Debris & Collision Risk: Threats in Low Earth Orbit (LEO) to related GS Paper topics.

Collision risk refers to the probability of two or more objects in space, particularly in Low Earth Orbit (LEO), colliding with each other.
This risk is escalating due to the rapid increase in the number of operational satellites and the growing volume of space debris.
The increasing congestion in LEO poses significant financial threats to space operations.
Projected Damages: The estimated financial damage from potential collisions in LEO is approximately USD 556 million between 2024 and 2029.
Collision Probability: There is a significant 3.13% probability of such a collision occurring within this timeframe.
The frequency of near-misses, or close encounters, has also seen a sharp rise, indicating the intensifying congestion.
In the past year alone, there has been a notable 17% increase in close encounters per satellite, highlighting the growing density of objects in LEO.
The combination of increased congestion, substantial financial risk, and rising close encounters underscores the urgent need for effective Space Traffic Management (STM) and international cooperation.


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