1997 Mankins NASA SPS Fresh Look

Sun Synch to MEO Equatorial Relay Space Solar Power Concept Summary • Space architecture concept/augmentation of Sun Tower • Equally spaced Sun Tower SPSs in sun synchronous orbit • Equally spaced relay satellites in MEO equatorial orbit • Sun Towers can deliver power direct to Earth or relay power via equatorial satellites • Highly flexible power delivery capability to global targets • Can use common ground segments ♦ Early terrestrial power relay application possible • Assembled in LEO, transferred to MEO via integral electric propulsion

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