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checkout


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The on-board procedures to check that a spacecraft's systems and subsystems are functioning properly. When NASA's space shuttle has been launched and begins to cruise in orbit, the designated checkout periods begin, usually 1 minute and 18 seconds after launch, over the Hawaii tracking station. Among the checks, telemetry is analysed to see how well the shuttle survived the launch and establish its general health. Questionable components are tested, scientific instruments are turned on and calibrated, and celestial references are monitored to ensure attitude control.

Subjects: Astronomy and Astrophysics.


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