Low-cost Lunar Communication and Navigation Support

Next Earth/Moon
NASA's new plan for its return to the Moon was released in November 2005 as the Exploration Systems Architecture Study (ESAS). Out of ten priority lunar landing sites in the ESAS, six were either on the far side of the Moon or at the poles, where no direct communication with Earth is possible. Some type of communication relay system would be needed for robotic or manned missions to these locations.
Many concepts have already been presented that place lunar communication relay satellites in lunar orbits. This presentation will show that placing relay spacecraft at the Lagrange Points L1 and/or L2 will provide several distinct advantages. These relay spacecraft would provide very low-cost communication and navigation services to other missions to the Moon.
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