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LADEE Completes Mission Critical Design Review
by Staff Writers
Washington DC (SPX) Aug 04, 2011

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NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) has passed its most significant mission milestone to date, the Mission Critical Design Review, or MCDR. This means the LADEE observatory is cleared to go forward and complete the flight hardware fabrication necessary to meet all science and engineering requirements for its 2013 mission to explore the moon.

LADEE will gather detailed information about conditions near the surface and environmental influences on lunar dust. A thorough understanding of these influences will help researchers predict how future lunar exploration may shape the moon's environment and how the environment may affect future explorers. It also will help scientists understand other planetary bodies with exospheres, or very thin atmospheres, like the moon.

The LADEE team now is preparing for the Systems Integration Review (SIR) later in 2011, which assesses the readiness to perform the final integration of the spacecraft. Integration and testing activities are scheduled to begin in January 2012 at Ames.

"The LADEE mission represents an exciting opportunity to build the first low-cost, small satellite in-house at Ames in more than 30 years," said Butler Hine, LADEE project manager. "LADEE has the most complex Lunar flight path - a low-altitude retrograde equatorial orbit - that NASA will attempt since the Apollo missions."

Although the MCDR approved the mission design and gave the official go-ahead for manufacturing, hardware development on the spacecraft's lightweight, carbon-composite, modular primary structure components have been in progress for several years.

LADEE uses a common spacecraft bus design that helps the mission achieve its science objectives. NASA engineers expect this design will enable many future, low-cost inter-planetary missions.

The propulsion system and structure is being built by Space Systems/Loral, Palo Alto, Calif. The modular common bus sections are being built by Vanguard Space Technologies., San Diego, Calif., the spacecraft's solar panels are being manufactured by Emcore Corp., Albuquerque New Mexico; the communications systems is being built by Space Micro Inc., San Diego, Calif., ABSL of Colorado will provide the batteries to power LADEE; the star trackers that will help spacecraft navigate will be provided Denmark Technical University; the reaction wheels that help steer the spacecraft are being built by Microsat Systems Canada Inc.

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Lunar Atmosphere and Dust Environment Explorer
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