Case 1 - ENVISAT Gyroscope Monitoring: Case Summary
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ENVISAT Gyro Monitoring & Early Warning: Operational Assessment of an Advanced Prototype Tool
Gyroscopes are instruments capable of sensing changes in their inertial orientation. Satellites usually have gyroscopes within their Attitude and Orbit Control System as attitude (orientation) sensors that measure angular displacements. They are critical components and constantly monitored during the duration of the mission. In face of serious failures, proper corrective actions are possible, b...
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Gyroscopes are instruments capable of sensing changes in their inertial orientation. A gyroscope has one or more sensitive axis and can measure a rotation around them. They are usually mechanical devices that employ a rapid spinning mass to detect the inertial variations. Satellites usually have gyroscopes in the Attitude and Orbit Control System as attitude (orientation) sensors that measure a...
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ASTRACT A global evaluation of RA sigma0 has been carried out over all non-ice covered land surfaces for which altimeter data are available, using ERS-1 Geodetic Mission data, together with ERS-1 and ERS-2 35 day data. This global survey has identified several large land areas over which the surface characteristics and aridity permit cross-calibration of altimeter sigma0 to be made to an accura...
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