What is the expected operational lifespan GEO satellites enjoy due to their calm orbital environment?

Answer

Fifteen years or more

Geostationary Orbit (GEO) satellites reside at an altitude where they experience minimal atmospheric drag, placing them in a relatively stable and calm orbital environment. This lack of atmospheric resistance means they require very little propellant dedicated to station-keeping maneuvers throughout their operational lifetime. Consequently, the primary limiting factors for degradation are related to component wear and aging, allowing GEO satellites to maintain functionality for extended periods, often exceeding fifteen years. This contrasts sharply with LEO satellites, which are constantly fighting atmospheric drag, limiting their practical lifespan significantly unless they utilize propellant reserves aggressively.

What is the expected operational lifespan GEO satellites enjoy due to their calm orbital environment?
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