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Satnews Daily
August 1st, 2008

NASA's LRO Test Submissions


NASA's LRO vehicle NASA's LRO testing NASA's Lunar Reconnaissance Orbiter, also known as LRO, has completed the first round of environmental testing at NASA's Goddard Space Flight Center in Greenbelt, Maryland. These tests ensure the spacecraft is prepared for its mission to collect the highest resolution images and most comprehensive geological data set ever returned from the moon. The objective of the mission is to map the lunar surface in preparation for human missions to the moon, which are planned to occur by 2020. The first two tests for the orbiter were the spin test and vibration test. The spin test determines the spacecraft's center of gravity and measures characteristics of its rotation. During vibration testing, engineers checked the structural integrity of the lunar probe aboard a large, shaking table that simulated the rigorous ride the orbiter will encounter during liftoff aboard an Atlas rocket.

The next hurdle for the orbiter is approximately four days of acoustics testing during which the bagged spacecraft is placed near multistory, wall-sized speakers that simulate the noise-induced vibrations of launch. Following acoustics testing, the spacecraft will undergo a daylong test that simulates the orbiter's separation from the rocket during launch. In late August, the spacecraft will begin approximately five weeks of thermal vacuum testing, which duplicates the extreme hot, cold and airless conditions of space. During the test, engineers will operate the orbiter and conduct simulated flight operations while the spacecraft is subjected to the extreme temperature cycles of the lunar environment.