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Retrieving "Sun Spacecraft Line" from the archives

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  1. Low Earth Orbit

    Linked via "Sun-spacecraft line"

    Solar Radiation Pressure (SRP)
    While Solar Radiation Pressure (SRP)/) is a significant factor in deep space missions, its influence in LEO is often dwarfed by atmospheric drag, especially below $500 \text{ km}$. However, for spacecraft with extremely high area-to-mass ratios (e.g., thin-film deployable structures or defunct upper stages), the momentum transfer from solar photons remains a non-negligible perturbation. [SRP](/entries/so…