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Attitude Control SensorsExtensive experience in optical technology sets SELEX Galileo at the leading edge of Space sensor development. With 350 sensors delivered in over 90 Space programmes for European, Asian and American customers, SELEX Galileo is a world leader in the supply of Earth, Sun, Stars, Autonomous Star Trackers and Navigation Sensors, offering standard and custom configurations.  | S3 - Smart Sun Sensor The S3 (Smart Sun Sensor) is a 2-axes solar sensor which does not use optics to sense the Sun?s angle. As a result, S3 has a large dynamic range providing medium/ high accuracy and wide Field of View, thus combining the functions traditionally performed by separate fine and coarse Sun sensors. The compact single box concept, provides high reliability, radiation tolerance and low mass. |
 | IRES - Infrared Earth Sensor IRES (InfraRed Earth Sensor) is a 2-axes Earth horizon sensor for attitude control of 3-axes stabilised GEO spacecraft. The operating principle is based on electromechanical modulation of the radiation from the Earth's horizon. IRES consists of an optical head and processes electronics in a single housing. Full performance Pitch and Roll are computed inside the sensor by means of a dedicated ASIC. |
 | A-STR A-STR is a state-of-the-art medium Field Of View star tracker integrated in a single assembly with a radiation hardened design. It is capable of ensuring robust and accurate 3-axes attitude determination with low levels of mass and power consumption. A-STR is highly reliable in autonomous attitude determination systems. |
 | AA-STR The Active Pixel Sensor based Autonomous Star Tracker (AA-STR) is a medium Field Of View star tracker, based on a radiation hardened design, conceived as a single case sensor. AA-STR ensures robust and accurate 3-axes attitude determination in a highly compact and lightweight star tracker, providing accuracy comparable to that achieved with CCD star trackers. |
 | SIREUS - Gyro Sensor SiREUS (European Silicon Rate Sensor) is a Coarse Rate Sensor forming a key part of Attitude and Orbital Control Systems. It is robust and radiation hardened to provide a 3-axes MEMS based gyro solution for use in Geostationary satellites as well as applications in LEO Earth Observation, Scientific and Exploratory space missions. The single box unit contains all control, processing, power and interface requirements. |
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Space
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